A secondary battery system according to one aspect of the present disclosure comprises: an electric load connected to a secondary battery; and a control device which, in an SOC-dV/dQ curve in which the dV/dQ that is the differential value of the change amount dV of the voltage V of the secondary battery with respect to the change amount dQ of the capacity Q of the secondary battery is plotted with respect to the charged state (SOC) expressed as a percentage of the capacity Q with respect to the fully charged capacity of the secondary battery, when at least one peak top SOC range including the peak top charge rate is set, and charging or discharging stops in the peak top SOC range, discharges the secondary battery by the electric load to avoid the peak top SOC range and ends charging or discharging of the secondary battery.
A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/04 - Construction or manufacture in general
H01M 50/10 - Primary casings, jackets or wrappings of a single cell or a single battery
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/116 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
H01M 50/20 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/50 - Current conducting connections for cells or batteries
H01M 50/502 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
A secondary battery includes a rectangular exterior body having an opening and containing a first electrode assembly and a second electrode assembly, a sealing plate sealing the opening, and a positive-electrode current collector. The sealing plate has an electrolytic solution introduction hole. The first electrode assembly includes a first insulating sheet on an outermost surface thereof adjacent to the second electrode assembly. The second electrode assembly includes a second insulating sheet on an outermost surface thereof adjacent to the first electrode assembly. A first tape is attached to both an outermost surface of a first positive-electrode tab group and the first insulating sheet. A second tape is attached to both an outermost surface of a second positive-electrode tab group and the second insulating sheet. At least one of the first tape and the second tape is located to face the electrolytic solution introduction hole.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/04 - Construction or manufacture in general
The present invention is for inhibiting ignition when an abnormality occurs in a battery. A sealed battery, which is one example of an embodiment of the present invention, comprises: an electrode body; a bottomed tubular outer housing can that accommodates the electrode body; and a sealing body that plugs an opening section of the outer housing can. The outer housing can or the sealing body has provided thereto an exhaust structure for discharging gas by breaking when internal pressure of the outer housing can exceeds a predetermined threshold. A sealed battery, which is one example of an embodiment of the present invention, comprises a potassium salt sheet that contains a potassium salt and that is disposed between an end surface of the electrode body and a bottom surface part of the outer housing can having the exhaust structure or the sealing body having the exhaust structure.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
A positive electrode terminal is inserted into a current-collector through hole formed in a positive electrode current collector and riveted in a spot-faced hole formed in the positive electrode current collector. A protrusion is formed on a bottom surface of the spot-faced hole so as to extend around the current-collector through hole, and a riveted portion of the positive electrode terminal covers the protrusion. The riveted portion of the positive electrode terminal is weld-connected to an edge of the spot-faced hole.
A secondary battery includes a battery case housing a flat electrode body and a sealing plate. The electrode body is housed in the battery case such that a winding axis thereof is parallel with a longitudinal direction of the sealing plate. At an end portion of the electrode body in a winding axis direction thereof, an edge of a positive or negative electrode plate is connected to an external terminal fixed to the sealing plate through a current collector. An insulating pressing member is arranged between the sealing plate and the electrode body. The pressing member presses the electrode body in a direction perpendicular to the winding axis such that a distance between a portion of the electrode body contacting the pressing member and the sealing plate is longer than a distance between the end portion of the electrode body in the winding axis direction thereof and the sealing plate.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
A method of manufacturing a secondary battery including an electrode body element fabricating step in which a first electrode body element including a positive electrode plate and a negative electrode plate, and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a tab-connecting step in which a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a second positive electrode collector, and a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a second negative electrode collector, and an electrode body fabricating step in which, after the tab-connecting step, the first electrode body element and the second electrode body element are unified.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/04 - Construction or manufacture in general
H01M 50/10 - Primary casings, jackets or wrappings of a single cell or a single battery
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
H01M 50/562 - Terminals characterised by the material
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
The purpose of the present disclosure is to provide a nonaqueous electrolyte secondary battery configured to suppress the occurrence of internal short-circuiting in the vicinity of the inner side end of winding. This nonaqueous electrolyte secondary battery. according to one embodiment includes: an electrode body in which a positive electrode and a negative electrode are wound with a separator therebetween; a nonaqueous electrolyte; and an exterior body for housing the electrode body and the nonaqueous electrolyte. A negative electrode (12) includes a first negative electrode active material, and a second negative electrode active material, the second negative electrode active material exhibiting a greater expansion rate than the first negative electrode active material during charging. When the proportion of mass of the second negative electrode active material with respect to the total mass of the first negative electrode active material and the second negative electrode material is defined as the second negative electrode active material ratio, the second negative electrode active material ratio on the side of the inner winding end (12a) is smaller than the second negative electrode active material ratio on the side of the outer winding end (12b).
A conductive member is disposed on a side of the sealing plate adjacent to an electrode assembly with a first insulating member disposed therebetween. The conductive member has a conductive-member opening portion. The conductive-member opening portion of the conductive member is sealed by a deformation plate. The deformation plate is connected to a first positive-electrode current collector, which is electrically connected to positive electrode plates. A second insulating member is disposed between the deformation plate and the first positive-electrode current collector. Fixing projections and displacement prevention projections are provided on a surface of the second insulating member. The second insulating member is fixed to the first positive-electrode current collector such that the fixing projections are disposed in fixing holes in the first positive-electrode current collector. The displacement prevention projections on the second insulating member are disposed in displacement prevention holes in the first positive-electrode current collector.
The power supply device including, in a battery stack, a spacer interposed between adjacent battery cells, end plates that press end surfaces of the battery stack, a plurality of fastening members each formed into a plate shape extending in a stacking direction of the plurality of battery cells, the fastening members being disposed on opposite side surfaces of the battery stack and fastening end plates to each other, an output terminal that connects the plurality of battery cells in series or in parallel and outputs electric power, and a lower plate that is made of metal and covers a lower surface of the battery stack, wherein the output terminal is disposed near an upper surface side of the battery stack, and one or more wide regions expanded to be intervals at which a capillary phenomenon does not occur are formed in a path of a gap from the lower plate or the plurality of fastening members to the output terminal
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/296 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
11.
POWER SOURCE DEVICE, AND VEHICLE AND POWER STORAGE DEVICE EACH EQUIPPED WITH SAME
Power source device includes: battery stack in which a plurality of battery cells are stacked; a pair of end plates that each have a plate shape having a main surface and a side surface intersecting the main surface, are formed with plate screw hole on the side surface, and are arranged on both side end surfaces of battery stack; a plurality of fastening members that are extended in stack direction of the battery stack, have fastening screw holes opened at ends, and couple end plates to each other; and bolt that is inserted into fastening screw hole of each fastening member and plate screw hole of end plate to fix the fastening member to end plate. The fastening member includes plate-shaped fastening body, intermediate part obtained by bending both ends of fastening body, and coupling piece obtained by bending an end of intermediate part far from fastening body to provide a height difference from fastening body and form fastening screw hole.
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
At one edge of a positive electrode plate in a winding axis direction of an electrode body, two positive electrode tabs per turn are provided to protrude from the edge. At the other edge of a negative electrode plate in the winding axis direction of the electrode body, two negative electrode tabs per turn are provided to protrude from the edge. The multiple positive electrode tabs provided to protrude from the positive electrode plate include multiple types of positive electrode tabs having different protrusion lengths and proximal end widths, and the multiple negative electrode tabs provided to protrude from the negative electrode plate include multiple types of negative electrode tabs having different protrusion lengths and base end widths.
A battery module includes battery stack (2) including a plurality of stacked battery cells (1), a pair of end plates (3) disposed at both end parts in a stacking direction of battery stack (2), bind bar (4) in which the pair of end plates (3) are coupled, and electronic circuit block (6) mounted with voltage detection circuit (22) that detects a voltage of battery cells (1). Electronic circuit block (6) is disposed on an outer surface of both end plates (3) disposed at both end parts of battery stack (2), and electronic circuit block (6) is connected to battery cells (1) via voltage detection line (19).
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A power supply device includes battery stack (2) in which a plurality of battery cells (1) are stacked, and a plurality of battery modules (10) including cell monitor circuits (6) that detect battery information of battery cells (1), and cell monitor circuits (6) of the battery modules (10) are cascade-connected via communication lines (44). Battery module (10) includes a pair of communication terminals (43) that are arranged at both ends and are connected to cell monitor circuit (6), and inner wires (45) that connect the pair of communication terminals (43) positioned at both the ends. Communication line (44) is connected to communication terminal (43), and cell monitor circuits (6) of the plurality of battery modules (10) are cascade-connected.
B60L 58/22 - Balancing the charge of battery modules
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/298 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
A battery module includes: battery stackwhich a plurality of batteries are stacked; end plate provided outside battery at an end in a stacking direction of the plurality of batteries and end separator provided between battery at the end and end plate end separator including first support member that supports a peripheral edge of a surface intersecting the stacking direction of battery at the end, and second support member that supports a central part of the surface and has lower rigidity with respect to deformation in the stacking direction than first support member.
H01M 10/04 - Construction or manufacture in general
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/233 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
16.
POWER SUPPLY DEVICE, AND VEHICLE AND ELECTRICAL STORAGE DEVICE EACH EQUIPPED WITH SAME
Power supply device (100) includes: battery stack (10) in which a plurality of battery cells (1) are stacked, each battery cell (1) having gas discharge valve (1c) that opens when an internal pressure of an outer covering can rises and electrode terminal (2) formed on an upper surface; first cover (41) that is provided on an upper surface of battery stack (10) and opens at a position corresponding to gas discharge valve (1c); and second cover (42) that is provided on an upper surface of first cover (41) and defines gas duct (38) with first cover (41). Gas duct (38) forms baffle plate (48) between first cover (41) and second cover (42). Power supply device (100) further includes metallic third cover (39) provided on an upper surface of second cover (42) and abutting on the upper surface of second cover (42).
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
H01M 50/271 - Lids or covers for the racks or secondary casings
Battery module includes: battery stack in which a plurality of batteries are stacked; and separatordisposed between the adjacent batteries, the separator having displacement absorbing material in contact with a surface intersecting a stacking direction of any one of the plurality of batteries. Positions of both ends of battery stack in the stacking direction are fixed, and battery stack is disposed.
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/6566 - Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
18.
POWER SOURCE DEVICE, AND VEHICLE AND POWER STORAGE DEVICE EACH EQUIPPED WITH SAME
Power source device includes: battery stack including a plurality of battery cells stacked; a plurality of bus bars that connect electrode terminals to each other; bus bar holder that holds the plurality of bus bars; and duct plate disposed on an upper surface of bus bar holder and defining gas duct. Bus bar holder is divided into a plurality of sub-holders, duct plate forms elongated hole screwed with one of the plurality of sub-holders, each of the plurality of sub-holders forms support surface longer than elongated hole and coupling part opened in support surface at a position corresponding to elongated hole, and duct plate is screwed to coupling part through elongated hole to couple the plurality of sub-holders and duct plate in a state where duct plate is placed on support surface with duct plate straddling the plurality of sub-holders divided.
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
19.
POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE
A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar that is coupled to the pair of end plates and fixes battery block in a pressurized state via end plates. Separator is an elastomer, and both surfaces of plate-shaped part are formed into uneven layers having different amounts of change in thickness with respect to a pressing force.
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
20.
POWER SUPPLY DEVICE, ELECTRIC VEHICLE PROVIDED WITH POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE
A power supply device connects a plurality of battery modules (10) including a plurality of battery cells (1) by power line (42). Battery module (10) includes cell monitor circuit (6) that detects battery information, and a plurality of cell monitor circuits (6) provided in each battery module (10) are cascade-connected via communication line (44). Cell monitor circuit (6) includes communication interface (48) including connection parts (43) formed by connecting communication line (44), and communication interface (48) sets a withstand voltage applied to connection part (43) to be higher than an output voltage of the power supply device.
B60L 58/22 - Balancing the charge of battery modules
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
In leakage detecting device (10) that detects an electric leakage from a high-voltage unit in which power storage unit (20) and a load are connected by a power supply line in a state of being insulated from an earth, Y capacitor (CY) is connected between the earth and a current path between power storage unit (20) and the load. Drive unit (11) of leakage detecting device (10) outputs a rectangular wave voltage to the current path between power storage unit (20) and the load via driving coupling capacitor (Cd1) to charge or discharge Y capacitor (CY). Leakage detector (12) determines presence or absence of the electric leakage between the current path and the earth according to a time transition in which the voltage at the measurement point of the current path changed according to charging or discharging of Y capacitor (CY) converges to an original voltage.
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
22.
Prismatic secondary battery and assembled battery using the same
A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/04 - Construction or manufacture in general
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/50 - Current conducting connections for cells or batteries
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/502 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/116 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
H01M 50/10 - Primary casings, jackets or wrappings of a single cell or a single battery
H01M 50/20 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
23.
BATTERY MODULE, AND ELECTRIC VEHICLE AND POWER STORAGE DEVICE EQUIPPED WITH BATTERY MODULE
In a battery module, end plates disposed at both ends of battery stack are connected by binding bars. Electrode terminals of respective battery cells and voltage detection circuit of electronic circuit block are connected by a plurality of voltage detection lines. Electronic circuit block is disposed on an outer surface of end plate and fixes one connector formed by linearly disposing a plurality of connecting terminals to which voltage detection lines are connected to circuit board on which voltage detection circuit is mounted. Voltage detection circuit is provided with a plurality of input terminals arranged in a linear manner. In circuit board, connecting terminal and input terminal disposed at opposite positions are connected by a plurality of connection lines. A cell voltage of each battery cell is input from connection line to adjacent input terminals.
H01M 50/284 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/298 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
In management device, voltage measurement circuit measures a voltage of each of a plurality of cells connected in series. A plurality of voltage measurement lines connect between respective nodes of the plurality of cells and respective voltage measurement terminals of voltage measurement circuit. A lower reference potential line connects between a lower node of lowermost cell of the plurality of cells and a lower reference terminal of voltage measurement circuit. Voltage dividing resistor is connected between a predetermined fixed potential and lowermost voltage measurement line. Controlling circuit monitors the voltage between a voltage dividing point potential of voltage dividing resistor and a lower reference potential of voltage measurement circuit, and diagnoses presence or absence of disconnection of lowermost voltage measurement line or the lower reference potential line.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
This nonaqueous electrolyte secondary battery has a non-aqueous electrolyte and an electrode assembly formed by layering a positive electrode and a negative electrode layered via a separator. The positive electrode has a positive electrode core and a positive electrode mix layer containing a positive electrode active substance. The median diameter (D50) of the positive electrode active substance in terms of volume is 5.0 to 7.0 μm, the BET specific surface area of the positive electrode active substance is 2.00 to 3.00 m2/g, the TAP density of the positive electrode active substance is 1.30 to 1.70 g/cm3, and the density of the positive electrode mix layer is 2.3 to 2.5 g/cm3.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
26.
POWER SUPPLY DEVICE AND VEHICLE AND POWER STORAGE DEVICE HAVING SAME
Power supply device includes: battery stack in which a plurality of battery cells each having electrode terminal formed on a top surface thereof are stacked; a pair of end plates respectively covering end surfaces in a stacking direction of battery stack; fastening member that fastens the pair of end plates to each other; and insulating member interposed between a side surface of battery stack and fastening member. Insulating member has groove extending in a stacking direction of battery stack on a surface facing battery stack.
H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 53/60 - Monitoring or controlling charging stations
Battery module includes: a battery stack in which a plurality of batteries provided with a valve that ejects gas are stacked in a first direction; a discharge path that discharges gas ejected from the valve in a second direction intersecting the first direction; light emitter that is provided on one end in the first direction of the battery stack and emits light to the discharge path; and light receiver that is provided on another end in the first direction of the battery stack and receives the light emitted from light emitter.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar connected to the pair of end plates and configured to fix battery block in a pressurized state via end plates. Separator includes an elastic plate made of a plastic foam including open cells on a surface of the separator or as a whole.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
B60L 1/04 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles to electric heating circuits fed by the power supply line
Battery module includes: battery stack in which a plurality of batteries are stacked; end plate provided outside battery at an end in a stacking direction of the plurality of batteries; and end separator provided between battery at the end and end plate, the end separator being disposed in a part in the stacking direction and including deformation allowing part in which deformation due to creep is larger than deformation of other parts.
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar connected to the pair of end plates and configured to fix battery block in a pressurized state via end plates. Separator is formed by stacking elastomer layer and plastic foam layer having a larger amount of deformation with respect to a pressing force than elastomer layer.
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
31.
ELECTRODE PLATE FOR SECONDARY BATTERY, METHOD FOR PRODUCING SAME, SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME
This electrode plate for a secondary battery comprises a thin plate-shaped core formed from a metal foil and an active material layer formed on at least one surface of the core. A melted section of the metal foil forming the core is scattered at an end section of the electrode plate for a secondary battery so as to spread from the plate thickness range of the core to the end face of the active material layer, adheres thereto, and is solidified.
Voltage detection line (6) includes: first flexible printed circuit board (36) including a plurality of first conductive wires (42) and first insulating film (44) covering the plurality of first conductive wires (42); second flexible printed circuit board (38) including a plurality of second conductive wires (46) and second insulating film (48) covering the plurality of second conductive wires (46); and connection part (40) that is soldered to each of first conductive wires (42) and each of second conductive wires (46) corresponding to each other to electrically connect the plurality of first conductive wires (42) and the plurality of second conductive wires (46), in which the plurality of first conductive wires (42) and the plurality of second conductive wires (46) are electrically connected to a plurality of batteries to detect voltages of the plurality of batteries.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H05K 1/14 - Structural association of two or more printed circuits
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
33.
POWER SUPPLY DEVICE, AND VEHICLE AND POWER STORAGE DEVICE EACH EQUIPPED WITH SAME
Power supply device includes: a battery stack in which a plurality of battery cells each having an electrode terminal on an upper surface of an outer covering can are stacked; and a plurality of bus bars connecting electrode terminals of adjacent battery cells to each other. Bus bar includes window opened through which a part of electrode terminal of battery cell can be visually recognized in a state of being overlapped with electrode terminal in plan view. As a result, even when bus bar is overlapped on electrode terminal, electrode terminal on the lower side can be visually recognized through window, so that the connection position and the height can be confirmed, and the reliability of connection can be enhanced.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
H01M 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
34.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
This positive electrode active material comprises an Ni-containing lithium composite oxide A and an Ni-containing lithium composite oxide B. Each of the Ni-containing lithium composite oxide A and the Ni-containing lithium composite oxide B contains 50% by mole or more of Ni relative to the total number of moles of the metal elements excluding Li; the Ni-containing lithium composite oxide A has an average primary particle diameter of 2 μm or more, an average secondary particle diameter of from 2 μm to 6 μm, and a particle breaking load of 5 mN or more; and the Ni-containing lithium composite oxide B has an average primary particle diameter of 1 μm or less, an average secondary particle diameter of from 10 μm to 20 μm, and a particle breaking load of 20 mN or more, while having a coating layer on the surface of each primary particle.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
35.
POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE AND ELECTRIC VEHICLE PROVIDED WITH POWER SUPPLY DEVICE
A power supply device includes: battery block formed by stacking a plurality of battery cells in a thickness with separator interposed therebetween; a pair of end plates disposed on both end surfaces of battery block; and binding bar that is coupled to the pair of end plates and fixes battery block in a pressurized state via end plates. Separator is made of elastomer having a comb-like shape in cross-sectional view, in which a plurality of rows of parallel ridges and a plurality of rows of parallel grooves are alternately disposed on a surface of plate-shaped part facing battery cell.
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
36.
POWER SUPPLY DEVICE, AND VEHICLE AND ELECTRICAL STORAGE DEVICE EACH EQUIPPED WITH SAME
Power supply device includes: battery stack in which a plurality of battery cells each including, on a top surface thereof, gas discharge valve that opens when an internal pressure of outer covering can increases are stacked; first cover provided on a top surface of battery stack and defining first gas duct communicating with gas discharge valve; and second cover provided on a top surface of first cover and defining second gas duct on a top surface of first gas duct. A plurality of communication holes through which first gas duct and second gas duct communicate with each other are formed on the top surface of first cover.
This electrode body for secondary batteries comprises: a positive electrode; a negative electrode; an outer separator; and an inner separator which is arranged inside the outer separator. An outer electrode, which is either the positive electrode or the negative electrode arranged on the outer side, is sandwiched by the outer separator and the inner separator. The outer separator and the inner separator have: two electrode facing parts that face the outermost layers of the outer electrode, while overlapping with each other, with the outer electrode being interposed therebetween; and a terminal overlapping part that is provided at respective ends of the outer separator and the inner separator. The thickness of the front end of the terminal overlapping part is larger than the sum of the thicknesses of the two electrode facing parts.
Power supply device (100) includes a plurality of secondary battery cells (1) each including an outer covering can having a quadrangular shape, a plurality of separators (16) interposed between the plurality of secondary battery cells (1), a pair of end plates (20) covering both side end faces of battery stack (10) in which the plurality of secondary battery cells (1) are stacked with the plurality of separators (16) interposed between the plurality of secondary battery cells (1), and a plurality of fastening members (15) each having a plate shape extending in a stacking direction of the plurality of secondary battery cells (1), and disposed on opposing side surfaces of battery stack (10) to fasten the pair of end plates (20) to each other. Separator (16) has a spring constant of less than or equal to 500 kN/mm.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
Busbar includes joining surface to which a voltage detection line is to be joined, and position restriction part provided on at least a part of a periphery of joining surface and configured to restrict spreading of a corrosion inhibitor that covers joining surface.
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/571 - Methods or arrangements for affording protection against corrosion; Selection of materials therefor
40.
METHOD FOR PRODUCING POSITIVE ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
A manufacturing method of a positive electrode plate for a non-aqueous electrolyte secondary battery includes a coating and drying step of coating a positive electrode active material layer and a protective layer onto a positive electrode core so that the protective layer forms a raised part between a portion inside a side end of a core exposed part in a width direction and a width-direction center, and then drying the positive electrode active material layer and the protective layer; and a compressing step of compressing the protective layer and the positive electrode active material layer so as to press the raised part formed in the coating and drying step and the positive electrode active material layer.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
This nonaqueous electrolyte secondary battery is provided with: an electrode body that comprises a positive electrode and a negative electrode; and a nonaqueous electrolyte solution that contains a nonaqueous solvent. The ratio of the capacity (Qn) of the negative electrode to the capacity (Qp) of the positive electrode, namely Qn/Qp is 1.4 or more; and the nonaqueous electrolyte solution contains, relative to the total volume of the nonaqueous solvent at 25° C., from 0.5% by volume to 10% by volume of methyl acetate and from 0.01 mole/L to 0.05 mole/L of lithium bisoxalato borate.
A non-aqueous electrolyte secondary battery includes an electrode body having a positive electrode plate and a negative electrode plate stacked with a separator interposed therebetween, a rectangular exterior body, a sealing plate, an electrode terminal, a first current collector in connection with the electrode terminal, a second current collector in connection with the first current collector, and a tab group extending from the electrode body and connected to the second current collector. The tab group includes a positive electrode tab group/negative electrode tab group extending from a positive electrode core of the positive electrode plate/negative electrode plate, and is bent near a connection with the second current collector. A surface of the positive electrode core on and near its end from which the positive electrode tabs extend is covered with a protective layer. One end of the negative electrode plate faces the protective layer on the positive electrode plate.
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
43.
POWER SUPPLY DEVICE, VEHICLE PROVIDED WITH SAME, AND POWER STORAGE DEVICE
Power supply device includes battery stack in which a plurality of prismatic battery cells are stacked, end plate having a rectangular shape in plan view and having a pressing surface that covers an end surface of battery stack, and fastening member that fastens battery stack. End plate has, on a pressing surface, flat pressing regions respectively formed on end edge sides in the up-down direction, and bead region formed on the middle side in the up-down direction and bent in a shape protruding toward the back surface side of the pressing surface. Thus, strength can be improved by changing a shape in which bead region is formed in the middle while pressing regions that presses battery stack remains on end plate, which enables end plate having high strength to be provided at low cost.
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/233 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
This nonaqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode has a negative electrode core body and a negative electrode mixture layer formed on the surface of the negative electrode core body. The negative electrode mixture layer contains: a negative electrode active material which has a pore volume of 0.5 ml/g or less and in which a coating layer containing a first amorphous carbon and a second amorphous carbon is formed on the surfaces of graphite particles; and a third amorphous carbon serving as a conductive material. The nonaqueous electrolyte contains difluorophosphate and a lithium salt including an oxalate complex as an anion.
A battery module comprising: a battery integrated body in which a plurality of rectangular secondary batteries are layered; a pair of end plates that sandwich the battery integrated body: and a pair of side-surface securing members that form a bridge between the end plates, and a top-surface securing member, each secondary battery including a flat wound electrode body in which a positive electrode and a negative electrode are wound with a separator interposed therebetween, so that the winding axes are in the transverse direction, and the winding ends of the negative electrodes of at least the secondary batteries adjacent to the end plates face upward, the winding ends being positioned in the gap between half the height of the electrode body and the top part of the curved section of the electrode body in a cross-section orthogonal to the winding axes.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
A secondary battery includes an electrode body having an electrode plate, a rectangular exterior body, a sealing plate, an electrode terminal, a first current collector arranged between the electrode body and the sealing plate and connected to the electrode terminal, a second current collector arranged between the electrode body and a side wall of the rectangular exterior body and connected to the first current collector, and a tab group formed such that multiple electrode tabs extending from the electrode plate toward the side wall are stacked on each other and connected to the second current collector. The tab group is connected to the second current collector, and is bent in parallel with the side wall. The curvature radius of a first rounded portion of a base portion of each tab is greater than the curvature radius of a second rounded portion of a tip portion of each tab.
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
Wound positive-electrode core body exposed pails are bundled and connected to a positive-electrode collector body. A tape is affixed straddling a separator positioned on the outermost surface of a winding electrode body, and the outermost surface of the wound positive-electrode core body exposed parts. The tape has a porous base material and an adhesive layer provided on the base material. The tape has a region in which the adhesive layer b is not provided on the base material a between the connection part between the tape and the separator positioned on the outermost surface of the winding electrode body, and the connection part between the tape and the outermost surface of the wound positive-electrode core body exposed parts.
H01M 10/04 - Construction or manufacture in general
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
48.
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
The positive electrodes each have a core-body exposed part at which a positive electrode core body is exposed, and a base part in which a composite material layer is formed on at least one surface of the positive electrode core body. The base part has formed therein a first region in which an active material is embedded in the positive electrode core body and a second region in which the the average embedment depth of active material embedded in the positive electrode core body is smaller than that in the first region. The second region is formed adjacent to the core-body exposed part.
Battery module includes: cell stack in which the plurality of cells each having output terminal are arrayed; bus bar that electrically connects output terminals of cells to each other, and bus bar plate that covers the surface of cell stack on which output terminal is disposed, that includes opening at a position overlapping with respective output terminals, bus bar plate in which bus bar is disposed in opening. When one of bus bar plate and cell stack is a first member and the other is a second member, the first member includes biasing part, and the second member includes biasing receiver. The first member and the second member are biased in opposite directions to each other by biasing part pressing the second member, and displacement of the first member and the second member is regulated by biasing receiver abutting on the first member.
H01M 50/572 - Means for preventing undesired use or discharge
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode plate and a negative electrode plate, a rectangular exterior body having an opening and accommodating the electrode body, a sealing plate sealing the opening, and an electrode terminal provided to the sealing plate. The positive electrode plate includes a positive electrode core and a positive electrode active material applied to both surfaces of the positive electrode core. The peripheral length of a positive electrode core portion to which the positive electrode active material is applied is 0.28 m/Ah or less per unit battery capacity.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/531 - Electrode connections inside a battery casing
This non-aqueous electrolyte secondary battery comprises: a separator that has an adhesive on at least one surface thereof; and an electrode that has a core and an electrode mix layer, and that is configured so that the electrode mix layer abuts the adhesive. The electrode mix layer is configured so that the density, in the thickness-direction, of a porous body increases from the core towards the adhesive.
A first electrode current collector is joined to a multilayer of a positive electrode core in a part including no positive electrode active material layer of the first electrode core, by ultrasonic welding in a joint area. The joint area, at which the multilayers of the first electrode core where the first electrode cores are stacked is joined to the first electrode current collector by ultrasonic welding, includes a plurality of core recesses. A core projection is formed between each adjacent pair of the plurality of core recesses of the multilayer of the first electrode core with the first electrode core flexed in a convex shape. A gap in an arc shape is formed between the adjacent pair of the layers of the first electrode core forming the core projection. The gap has a length decreasing from an apex to a bottom of the core projection.
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
53.
NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
This nonaqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, and a nonaqueous electrolyte. The nonaqueous electrolyte contains a carboxylic acid ester and lithium bisoxalato borate. The concentration of the carboxylic acid ester is not less than 0.01% by volume but less than 10% by volume relative to the volume of the nonaqueous solvent. In addition, the concentration of the lithium bisoxalato borate is not less than 0.01 M but less than 0.2 M.
This secondary battery is provided with an electrode body formed by laminating a positive electrode and a negative electrode with a separator interposed therebetween. The separator includes a first layer and a second layer having a lesser thermal shrinkage than the first layer, and has a tubular part that is formed in a tubular shape and that constitutes the outermost surface of the electrode body. The tubular part, of the separator, that constitutes the outermost surface of the electrode body has a tape stuck thereto in at least one end portion in the axial direction, the tape pressing the one end portion in the axial direction from one side to the other side in the lamination direction of the electrode body.
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
55.
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
This non-aqueous electrolyte secondary battery comprises an electrode body in which a first separator, a positive electrode plate, a second separator, and a negative electrode plate are layered and coiled for 10 or more turns. The electrode body includes: a flat section in which the outer peripheral surface is flat; and two curved surface sections which are disposed at both ends in a first direction of the flat section and in which the outer peripheral surface is curved. The non-aqueous electrolyte secondary battery includes: a winding-end tape that is adhered to the outermost peripheral surface of the electrode body; and a positive electrode protective tape that is adhered to a winding-start-side end section on the inner peripheral side of the positive electrode plate. The winding-end tape is disposed on one of the two curved surface sections.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
A secondary battery that comprises an adhesive that is provided to at least one thickness-direction side surface of separators between the separators and first electrodes (negative electrodes). When the adhesive force between a separator and the outermost first electrode (negative electrode) is A0 and the adhesive force between a separator and the first electrode (negative electrode) tint is in the center of the laminate in the layering direction is A1 [N/m] A1/A0 is at least 0.1 but less than 0.9.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
This non-aqueous electrolyte secondary battery comprises: an electrode assembly in which a positive electrode and a negative electrode are laminated via a separator; and a non-aqueous electrolyte. The non-aqueous electrolyte includes an SO2 bond-containing lithium salt and an isocyanate group-containing compound. With respect to the mass of the non-aqueous electrolyte, the concentration of the lithium salt is preferably 0.1-2.5 mass % and the concentration of the compound is preferably 0.1-8 mass %.
This secondary battery comprises an electrode body obtained by laminating positive electrodes and negative electrodes with a separator interposed therebetween. The separator includes a first layer and a second layer having lower thermal shrinkage than the first layer, and has a tubular section that is formed into a tube shape and constitutes the outermost surface of the electrode body. The separator is arranged such that, in the tubular section thereof, the first layer faces the inside and the second layer faces the outside.
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
A method of manufacturing an electrode plate for a battery of the present disclosure includes: a step (A) of forming a through hole (20) in a strip-shaped electrode plate (10); and a step (B) of cutting the strip-shaped electrode plate along a width direction. In the step (A), the through hole is formed at a position on a cutting line (21) which extends in the width direction of the strip-shaped electrode plate, in the step (B), cutting of the strip-shaped electrode plate is performed by multiple cutting blades (30A, 30B) disposed along the cutting line, and at least one cutting blade of the multiple cutting blades is disposed at the position of the through hole.
The present nonaqueous electrolyte secondary battery positive electrode comprises a positive electrode core, and a positive electrode composite material layer formed on the surface of the positive electrode core. The positive electrode composite material layer includes at least a positive electrode active material, and lithium phosphate. The positive electrode active material includes a first positive electrode active material wherein the Ni content relative to the total molar amount of metal elements other than Li is 50-65 mol%, and a second positive electrode active material wherein the Ni content relative to the total molar amount of metal elements other than Li is 45 mol% or less. The ratio of the first positive electrode active material to the second positive electrode active material in the positive electrode composite material layer is, by mass ratio, from 80:20 to 50:50.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 10/05 - Accumulators with non-aqueous electrolyte
W1/T1 is equal to or greater than 5, assuming that the width of an electrode body in a direction perpendicular to a winding axis direction and a thickness direction of the electrode body is W1 (mm) and the thickness of the electrode body 3 is T1 (mm).
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
62.
EARTH LEAKAGE DETECTING DEVICE, AND VEHICULAR POWER SUPPLY SYSTEM
First voltage an output unit generates a cyclic voltage that changes cyclically, and applies the cyclic voltage to the other end of a coupling capacitor via a first resistance. A second resistance and a third resistance are connected in series between a node and a second voltage output unit, the node being between the coupling capacitor and the first resistance. A voltage measurement unit measures a voltage at a voltage dividing point between the second resistance and the third resistance. In a period in which two types of fixed voltages are applied to the voltage dividing point in order, a diagnosing unit determines whether a leakage detecting device is in a normal state, based on the voltage measured by the voltage measurement unit.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
H02H 3/17 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
63.
POWER SUPPLY DEVICE, ELECTRIC VEHICLE USING SAME, AND POWER STORAGE DEVICE
A power supply device includes a plurality of battery cells each including an outer covering can in a prismatic shape, a pair of end plates that cover both end surfaces of a battery stack in which the plurality of battery cells are stacked, a plurality of bind bars each formed into a plate shape extending in a stacking direction of the plurality of battery cells, the plurality of bind bars being respectively disposed on opposite side surfaces of the battery stack to fasten end plates to each other, heat radiation plate placing the battery stack on its upper surface side for releasing heat from the battery stack, and heat transfer sheet interposed between an upper surface of heat radiation plate and a lower surface of the battery stack to bring heat radiation plate and the battery stack into a thermally coupled state, wherein low friction slide layer with a friction resistance smaller than a friction resistance of the upper surface of heat transfer sheet is provided between heat transfer sheet and the plurality of battery cells.
H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
This electrode plate for a non-aqueous electrolyte secondary battery comprises: an electrode core with an undercoat layer formed on the surface thereof; and an electrode composite layer formed on the undercoat layer of the electrode core. The undercoat layer can be obtained by applying an undercoat dispersion liquid on the surface of the electrode core and drying the dispersion liquid. The average diameter of an electroconductive auxiliary agent used for the undercoat layer is no greater than 12 nm. The molecular weight of a binder used for the undercoat layer is no less than 900,000. The thickness of the undercoat layer is no greater than 20 μm. The molecular weight of a binder used for the electrode composite layer is no less than 900,000.
This electrode plate for a non-aqueous electrolyte secondary battery has: an electrode core having an undercoat layer formed on the surface thereof; an electrode mixture layer formed on the undercoat layer of the electrode core. The undercoat layer is obtained by applying an undercoat dispersion on the surface of the electrode core and drying the same. A conductive auxiliary agent used for the undercoat layer is formed of carbon nanotubes. The average diameter of the conductive auxiliary agent is 12 nm or less. The aspect ratio (average length/average diameter) of the conductive auxiliary agent is 4000 or greater. The thickness of the undercoat layer is 0.10 μm or less.
An electricity storage device includes: an electrode body including at least one positive electrode plate, at least one negative electrode plate, and a separator. an insulating holder that is formed by folding a sheet made of an insulating material and accommodates therein the electrode body; an outer case which has an opening and accommodates therein the electrode body with the insulating holder and an electrolyte; and a sealing plate. The outer case has a bottom plate part and a plurality of side walls standing from the bottom plate part, and the opening is formed in a position to face the bottom plate part. The insulating holder has a plurality of side surface parts respectively facing the plurality of side walls, and a bottom surface part that faces the bottom plate part. At least one of the side surface parts or the bottom surface part has a bellow-folded structure.
This electrical storage device comprises: an electrode body; a bottomed cylindrical outer can; a sealing plate to which a positive electrode terminal and a negative electrode terminal are attached; and a functional part placed near the positive electrode terminal or the negative electrode terminal on the inner surface of the sealing plate. The electrode body has a positive electrode tab group for which a plurality of positive electrode tabs are laminated, and a negative electrode tab group for which a plurality of negative electrode tabs are laminated, and each tab group functions as a spring that connects the electrode body and the sealing plate. Of the positive electrode tab group and the negative electrode tab group, the spring constant of one tab group near the functional part is greater than the spring constant of the other tab group.
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/547 - Terminals characterised by the disposition of the terminals on the cells
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
68.
EARTH LEAKAGE DETECTION DEVICE AND VEHICLE POWER SUPPLY SYSTEM
In order to quickly and accurately diagnose the failure of a coupling capacitor of an earth leakage detection device, voltage output unit (11a, OP1) generates a periodically changing periodic voltage and applies the periodic voltage to the other end of coupling capacitor (Cc) via first resistor (R1). Second resistor (R2) and third resistor (R3) are connected in series between a connection point between coupling capacitor (Cc) and first resistor (R1), and a predetermined fixed potential. Voltage measurement unit (11b) measures a voltage at a voltage dividing point between second resistor (R2) and third resistor (R3). Diagnosis unit (11d) determines whether or not coupling capacitor (Cc) is normal based on a voltage measured when switch (MRp, MRm, MRpp) is turned on in a state where voltage output unit (11a, OP1) outputs a fixed voltage.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
A terminal structure to be adopted for a power storage device including an outer case that has an opening, includes: a sealing plate sealing the opening; a terminal member inserted into a terminal hole formed in the sealing plate and electrically connected to an electrode; and a first insulating member arranged between the sealing plate and the terminal member, and arranged on an outer surface side of the sealing plate facing an outer side of the power storage device. The terminal member has a first extended part extending further outward than an outer periphery of the terminal hole on the outer side of the power storage device. A first protruding part or a second recessed part provided to the first insulating member and a first recessed part or a second protruding part provided to the sealing plate or to the first extended part fit with each other.
H01M 50/588 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
H01G 11/74 - Terminals, e.g. extensions of current collectors
H01G 11/82 - Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
H01M 50/176 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
70.
NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTE SECONDARY CELL
A non-aqueous electrolyte secondary cell according to the present invention comprises: an electrode body constituted by a plurality of positive electrodes and a plurality of negative electrodes alternately layered one by one with separators interposed therebetween; a non-aqueous electrolyte solution; and a case that houses the electrode body and the non-aqueous electrolyte solution. A solution injection port for injecting the electrolyte solution is provided in the case. The density of a first region separated from the solution injection port is less than the density of a second region, which is near the solution injection port, in positive electrode compound layers of the positive electrodes and/or negative electrode compound layers of the negative electrodes constituting the electrode body.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
71.
ELECTRODE PLATE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING ELECTRODE PLATE
An electrode plate which is to be contained in a wound or multilayer electrode body, and which is provided with: a band-like electrode plate core body; mixture layers that are formed on both surfaces of the electrode plate core body; and a tab that extends from one end of the electrode plate core body in the short-side direction. With respect to this electrode plate, the front edge of the electrode plate core body at the end from which the tab extends is covered by the mixture layers.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
This positive electrode for nonaqueous electrolyte secondary batteries is provided with a positive electrode core body and a positive electrode mixture layer that is formed on the surface of the positive electrode core body. The positive electrode mixture layer has a void fraction of from 23% by volume to 50% by volume; the positive electrode mixture layer contains at least a positive electrode active material, carbon nanotubes serving as a conductive assistant, and a polyvinylidene fluoride serving as a binder; the carbon nanotubes have a particle diameter of from 5 nm to 40 nm and an aspect ratio of from 100 to 1,000; the content of the carbon nanotubes in the positive electrode mixture layer is from 0.2% by mass to 5% by mass; and the number of polyvinylidene fluoride molecules contained per unit mass of the positive electrode mixture layer is from 0.005 to 0.030.
A secondary battery configured so as to comprise: a plurality of positive electrodes each including a positive electrode core and a positive electrode active substance disposed on the positive electrode core; a plurality of negative electrodes each including a negative electrode core and a negative electrode active substance disposed upon the negative electrode core; at least one separator; and an adhesive coated so as to have a substantially constant area density on at least one side surface in the thickness direction of the separator. The secondary battery includes a laminated section in which the positive electrodes and the negative electrodes are alternately stacked, having the separator therebetween. The area of adhered sections adhered by the adhesive is greater on the outside in the lamination direction of the laminated section than on the inside in the lamination direction.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/409 - Separators, membranes or diaphragms characterised by the material
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
74.
POWER SUPPLY DEVICE, AND ELECTRIC VEHICLE AND POWER STORAGE DEVICE THAT COMPRISE SAID POWER SUPPLY DEVICE
A power supply device includes a battery block in which a plurality of battery cells (1) is stacked in a thickness with separator (2) clamped therebetween, a pair of end plates disposed on opposing end faces of the battery block, and a binding bar coupled to the pair of end plates and fixing the battery block in a compressed state via the end plates, in order to absorb expansion of the battery cells with the separator and suppress degradation of the separator in a state of being heated by the battery cells. Separator (2) has a three-layer structure including viscoelastic elastic sheet (6) that absorbs expansion of battery cell (1) and heat-insulating sheets (5) laminated on opposing surfaces of elastic sheet (6), and heat-insulating sheet (5) is hybrid material (5A) of an inorganic powder and a fibrous reinforcing material.
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Each of the Ni-containing lithium-based complex oxide A and the Ni-containing lithium-based complex oxide B contains Ni in an amount of 55 mol % or more relative to the total number of moles of metal elements excluding Li, the Ni-containing lithium-based complex oxide A has an average primary particle diameter of 2 μm or more, an average secondary particle diameter of 2 to 6 μm, a particle fracture load of 5 to 35 mN and a BET specific surface area of 0.5 m2/g to 1.0 m2/g, and the Ni-containing lithium-based complex oxide B has an average primary particle diameter of 1 μm or less, an average secondary particle diameter of 10 to 20 μm, a particle fracture load of 10 to 35 mN and a BET specific surface area of 0.1 m2/g to 1.0 m2/g.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
This non-aqueous electrolyte secondary battery is provided with: an electrode body that has a positive electrode and a negative electrode; and an outer package in which the electrode body is accommodated. The negative electrode comprises a negative electrode core body and a negative electrode mixture layer formed on the surface of the negative electrode core body. The negative electrode mixture layer comprises: a negative electrode active material that has a tap density of 1.00-1.20 g/cm3; CMC, the content of which accounts for 0.6-0.8 mass % in the negative electrode mixture layer; and SBR, the content of which accounts for 0.4-0.8 mass % in the negative electrode mixture layer. The mass ratio of the content of CMC to the content of SBR in the negative electrode mixture layer is less than 2, and the total content of CMC and SBR in the negative electrode mixture layer is less than 1.5 mass %.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
A secondary battery includes a rectangular exterior body having an opening and containing a first electrode assembly and a second electrode assembly, a sealing plate sealing the opening, and a positive-electrode current collector. The sealing plate has an electrolytic solution introduction hole. The first electrode assembly includes a first insulating sheet on an outermost surface thereof adjacent to the second electrode assembly. The second electrode assembly includes a second insulating sheet on an outermost surface thereof adjacent to the first electrode assembly. A first tape is attached to both an outermost surface of a first positive-electrode tab group and the first insulating sheet. A second tape is attached to both an outermost surface of a second positive-electrode tab group and the second insulating sheet. At least one of the first tape and the second tape is located to face the electrolytic solution introduction hole.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/04 - Construction or manufacture in general
H01M 50/463 - Separators, membranes or diaphragms characterised by their shape
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
78.
SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME
In this secondary battery in which an electrode body having a positive electrode tab group at one end thereof is accommodated in a battery case, a positive electrode terminal and the positive electrode tab group are electrically connected via a second positive electrode current collector, the positive electrode tab group is connected to a tab connection part of the second positive electrode current collector in a bent state, and a tape as a fixing means is attached across a first main surface of the electrode body-the tab connection part of the second positive electrode current collector-a second main surface of the electrode body.
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 10/04 - Construction or manufacture in general
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
79.
POWER SOURCE DEVICE, ELECTRIC VEHICLE EQUIPPED WITH SAID POWER SOURCE DEVICE, AND POWER STORAGE DEVICE
A power source device includes: a plurality of battery cells each including exterior can formed in a rectangular shape and including opposing main surfaces; insulating heat-shrinkable films covering the plurality of battery cells, respectively; a plurality of separators interposed between the plurality of battery cells; a battery stack formed by stacking the plurality of battery cells with separators interposed therebetween; a pair of end plates disposed on both end surfaces of the battery stack; and a plurality of bind bars disposed on each of opposing side surfaces of the battery stack and fastening the end plates to each other, wherein heat-shrinkable films have expandability in which a maximum expansion amount in a heat-shrunk state is larger than a maximum expansion amount of main surfaces of exterior can at the time of expansion of battery cells.
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
80.
POWER SUPPLY DEVICE, ELECTRIC VEHICLE COMPRISING SAID POWER SUPPLY DEVICE, AND POWER STORAGE DEVICE
A power supply device includes a plurality of battery cells each having a prismatic exterior can, heat-shrinkable films having insulating property and each covering one of the plurality of battery cells, a plurality of separators interposed between the plurality of battery cells, a battery stack constituted by the plurality of battery cells stacked with separators interposed between the plurality of battery cells, a pair of end plates disposed on both end faces of the battery stack, and a plurality of bind bars disposed on side surfaces, facing opposite directions, of the battery stack to fasten the end plates to each other, where an edge of an end edge of each separator is broken.
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
81.
LEAKAGE DETECTION DEVICE AND POWER SYSTEM FOR VEHICLE
In leakage detection device, coupling capacitor has a first end connected to a current path of power storage unit connected to load in a state of being insulated from a ground. Voltage output generates a periodic voltage that changes periodically, and applies the periodic voltage to a second end of coupling capacitor via impedance element. Voltage output unit measures a voltage at a node between coupling capacitor and impedance element. Leakage determination unit estimates at least one of an upper peak value and a lower peak value at a certain time, calculates a peak-to-peak value between the upper peak value and the lower peak value with virtually aligned time axes, and determines presence or absence of a leakage between a current path of power storage unit and the ground.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
82.
Earth leakage detecting device, and vehicular power supply system
In earth leakage detection device, one end of coupling capacitor is connected to a current path of power storage unit connected to load in a state of being insulated from the ground. Voltage output unit generates a periodically changing periodic voltage, and applies the periodic voltage to the other end of coupling capacitor via first resistor. Second resistor and third resistor are connected in series between a node between coupling capacitor and first resistor and a predetermined fixed potential. Voltage measurement unit measures a voltage at a voltage dividing point between second resistor and third resistor. Earth leakage determination unit determines presence or absence of an earth leakage between the current path of power storage unit and the ground based on the measured voltage.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
A method of manufacturing a secondary battery including an electrode body element fabricating step in which a first electrode body element including a positive electrode plate and a negative electrode plate, and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a tab-connecting step in which a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a second positive electrode collector, and a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a second negative electrode collector, and an electrode body fabricating step in which, after the tab-connecting step, the first electrode body element and the second electrode body element are unified.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
H01M 50/562 - Terminals characterised by the material
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
A power supply device includes a battery block formed by stacking a plurality of battery cells in a thickness with separator interposed between corresponding battery cells, a pair of end plates disposed on respective end faces of the battery block, and a binding bar coupled to the pair of end plates to fix the battery block in a compressed state together with the end plates. Separator includes heat-insulating sheet and elastic layer layered on a surface of heat-insulating sheet, elastic layer having elastic protrusion that is partially in adhesion to a case surface of battery cell and is deformed by expansion of battery cell, and deformation space is provided for elastic protrusion pressed by battery cell to be displaced in an outer peripheral direction orthogonal to a pressing direction.
H01M 50/289 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 10/04 - Construction or manufacture in general
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
85.
Earth leakage detecting device, and vehicular power supply system
An earth leakage detecting device comprises following elements. A first end of coupling capacitor is connected to a current path of power storage connected to load in a state of being insulated from a ground. Voltage output unit generates a periodic voltage that changes periodically, and applies the periodic voltage to a second end of coupling capacitor via impedance element. Voltage measurer measures a voltage at a connection point between coupling capacitor and impedance element. Earth leakage determiner determines presence or absence of an earth leakage between the current path of power storage and the ground on the basis of the measured voltage. Voltage output unit has a preparation period for constantly outputting a potential between a high-side potential and a low-side potential of the periodic voltage before a measurement period for outputting the periodic voltage.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
H02H 3/17 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
86.
SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Provided is a secondary battery in which an electrode body having a positive electrode tab group on one end thereof is accommodated in a battery case, wherein: a first positive electrode current collector comprises a first region disposed between a sealing plate and the electrode body, and a second region disposed between the electrode body and a first side wall of a rectangular exterior body constituting the battery case; the positive electrode tab group is connected in a folded state to a second positive electrode current collector; and the second positive electrode current collector is welded to the second region.
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
87.
Secondary battery comprising a current collector comprising a current collector protrusion and a current collector opening
The secondary battery includes an electrode body that includes a positive electrode plate and a negative electrode plate, an outer body that has an opening and houses the electrode body, a sealing plate that seals the opening of the outer body, a positive electrode tab that is provided in the positive electrode plate, a positive electrode external terminal that is electrically connected to the positive electrode plate and attached to the sealing plate, and a positive electrode current collector and a second positive electrode current collector that electrically connect the positive electrode tab and the positive electrode external terminal. The first positive electrode current collector has a current collector protrusion. The second positive electrode current collector has a current collector opening. The current collector protrusion is positioned in the current collector opening. The current collector protrusion and the edge of the current collector opening are weld connected to each other.
A secondary battery includes an external terminal provided outside a sealing plate of an exterior body, a connection member provided inside the sealing plate and connected to the external terminal, a current collector connected to the connection member, and a current collector tab connected to an electrode body. The current collector has, along a longitudinal direction of the sealing plate, a first connection region connected to the current collector tab, a second connection region connected to the connection member, and a fuse region provided on a current path from the first connection region to the second connection region. In the longitudinal direction of the sealing plate, the first connection region is positioned inside the external terminal, and the fuse region is positioned at a position identical to a position of the external terminal or outside the external terminal.
An electronic circuit block including a voltage detection circuit from a high-temperature, high-pressure exhaust gas, a battery module includes: a battery stack in which a plurality of battery cells are stacked; a pair of end plates disposed at both end parts in a stacking direction of the battery stack; bind bar coupling the pair of end plates to fix the battery cells; and electronic circuit block on which the voltage detection circuit for detecting voltages of the battery cells is mounted, and electronic circuit block is disposed on a surface of end plate.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/30 - Arrangements for facilitating escape of gases
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
Each prismatic cell is provided with a rolled electrode assembly, and the rolled electrode assembly has a flat section with a flat outer peripheral surface and two curved sections with a curved outer peripheral surface. Each spacer has a substrate and multiple ribs protruding on at least one side of the substrate, and the ribs are formed so as to face the flat section of the rolled electrode assembly and extend in a direction substantially perpendicular to the rolling axis of the rolled electrode assembly. The ribs have a length of 60 to 100 when the height of the flat section of the rolled electrode assembly is represented by 100, and the relationship 2≤B/A≤10 is satisfied where A is the width of the ribs and B is the distance between adjoining ribs.
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
A battery includes: an electrode body obtained by stacking a positive electrode plate and a negative electrode plate with a separator interposed therebetween, the positive electrode plate including a first positive electrode tab group; an exterior body having an opening and housing the electrode body; a sealing plate sealing the opening: a positive electrode terminal attached to the sealing plate; and a substantially plate-shaped positive electrode current collector arranged substantially parallel to the sealing plate between the electrode body and the sealing plate and electrically connected to the positive electrode terminal. A positive electrode tab group of the electrode body is welded to a surface of the positive electrode current collector facing the electrode body, and a second tape covers an area corresponding to the back of a welding area of the positive electrode tab group on the surface of the positive electrode current collector facing the sealing plate.
A secondary battery includes an exterior body housing the electrode body, an external terminal provided outside a sealing plate sealing an opening of the exterior body, a connection member provided inside the sealing plate and connected to the external terminal, an insulating member provided between the sealing plate and the connection member, and a current collector disposed inside the sealing plate and connected to the connection member and a tab group including a plurality of current collector tabs extending from the electrode body. At least some of the current collector tabs of the tab group have a projecting portion projecting from the current collector in a longitudinal direction of the sealing plate. The insulating member has an extending portion at least extending between the projecting portion and the sealing plate along the longitudinal direction of the sealing plate.
A secondary battery includes an electrode body configured such that a positive electrode plate and a negative electrode plate are tacked on each other with a separator being interposed therebetween, an exterior body having an opening and housing the electrode body, a sealing plate sealing the opening, and an external terminal attached to the sealing plate. Tabs provided at the positive electrode plate and the negative electrode plate are electrically connected to the external terminal via a current collector arranged between the electrode body and the sealing plate. The current collector has a first connection portion connected to the tabs and a second connection portion with a fuse portion. The fuse portion is fused when overcurrent flows in the current path. A portion of the fuse portion facing the electrode body is covered with a fuse portion insulating member made of a material whose melting point is 200° C. or higher.
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
94.
METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
In a method for producing a nonaqueous electrolyte secondary battery according to the present invention, a wound electrode body and a flat wound electrode body are formed by pressing. The flat wound electrode body and a cover member are connected to each other; a battery case and the cover member are integrated with each other; and a nonaqueous electrolyte solution is injected using a liquid injection port of the cover member, and the liquid injection port is sealed after the liquid injection, thereby forming a nonaqueous electrolyte secondary battery before inspection. Subsequently, the nonaqueous electrolyte secondary battery before inspection is pressed into a predetermined pressed state. A predetermined charge/discharge inspection is performed on the nonaqueous electrolyte secondary battery in the predetermined pressed state. If predetermined inspection specifications are satisfied in the predetermined charge/.discharge inspection, the nonaqueous electrolyte secondary battery is considered as a product that is ready for shipment.
H01M 10/04 - Construction or manufacture in general
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
Power supply device is a power supply device to be fixed to a power supply target equipment. Power supply device includes: a plurality of battery cells each having a prismatic outer covering can; a pair of end plates that covers both side end faces of a battery stack in which the plurality of battery cells are stacked; lower plate that covers a lower face of the battery stack; a plurality of fastening members that are sheets extending in a stacking direction of the plurality of battery cells and are arranged on opposed side faces of the battery stack to fasten end plates to each other in a state where the battery stack is placed on an upper surface of lower plate; a plate fixing mechanism for fixing lower plate to the power supply target equipment; and a connecting structure for connecting lower plate and fastening member to each other in a state where the displacement between lower plate and fastening member is allowed.
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/517 - Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
96.
METHOD FOR PRODUCING SECONDARY BATTERY, AND SECONDARY BATTERY
A method for producing a secondary battery according to the present invention comprises a step wherein a negative electrode collector, which has a projection having a height of from 0.36 mm to 0.45 mm on at least one of a first member and a second member, said members constituting the negative electrode collector, is resistance-welded with a core multilayer part in such a manner that the core multilayer part is sandwiched between the first member and the second member, while having the projection in contact with the core multilayer part.
Provided is a power supply device that is configured to dispose each of battery cells at an ideal position while stacking the battery cells to form a battery stack, the power supply device including: battery cells each having an outer covering can in a prismatic shape and having a constant cell thickness; end plates paired for covering both side end surfaces of the battery stack in which battery cells are stacked; and bind bars that are disposed on opposite side surfaces of the battery stack and coupled to the end plates. Bind bar includes pressing piece for pressing an upper surface of each of battery cells adjacent to each other. The power supply device further includes elastomer molding disposed between pressing piece and an upper surface of battery cell, and pressing piece elastically presses the upper surface of battery cell with elastomer molding.
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
A battery includes an electrode body obtained by stacking a positive electrode plate and a negative electrode plate with a separator interposed therebetween, an exterior body having an opening and housing the electrode body, a sealing plate sealing the opening, and an external terminal attached to the sealing plate. A tab is provided at at least one of the positive electrode plate or the negative electrode plate, and is electrically connected to the external terminal via a current collector between the electrode body and the sealing plate. The current collector includes a first current collector and a second current collector. The first current collector and the second current collector are welded to each other at a welding point covered with a covering member.
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 4/70 - Carriers or collectors characterised by shape or form
A battery includes an electrode body obtained by stacking a positive electrode plate and a negative electrode plate with a separator interposed therebetween, an exterior body having an opening and housing the electrode body, a sealing plate sealing the opening, and an external terminal attached to the sealing plate. A tab is provided at at least one of the positive electrode plate or the negative electrode plate, and is electrically connected to the external terminal via a current collector between the electrode body and the sealing plate. The tab is welded to the current collector. A covering member covers a welding point between the tab and the current collector.
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 4/70 - Carriers or collectors characterised by shape or form
100.
POWER SUPPLY DEVICE, AND ELECTRIC VEHICLE AND POWER STORAGE DEVICE EQUIPPED WITH THIS POWER SUPPLY DEVICE
In power supply device, binding bar is fixed to a pair of end plates disposed at both ends of battery stack formed by stacking a plurality of battery cells in order to suppress displacement of the battery cells by reducing deformation of the battery stack. Binding bar is provided with fixing piece of bracket fixed to base plate so as to protrude from a surface of binding bar. In binding bar, an middle part of the binding bar is defined as a fixing piece region, a straight part extending in a longitudinal direction at a part of an outer peripheral edge is defined as a bending line, a region excluding the bending line is cut along a cutting line and bent along the bending line, the fixing piece region is defined as fixing piece protruding outward, and fixing piece region is defined as opening window. Bracket includes a fixing part, rising part, and base plate connector, fixing piece is fixed to the fixing part, and binding bar is fixed to base plate via bracket.
H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
patents
