A hydraulic suspension apparatus, a hydraulic suspension system (1000) having same, and a vehicle. The hydraulic suspension apparatus comprises: a liquid storage apparatus and a damper (200). The liquid storage apparatus is disposed on a vehicle body, and used for storing an oil. The damper (200) has a damper housing (201), a piston (202), and a piston rod (203). The damper housing (201) is connected to an axle. The piston (202) is located in the damper housing (201) and mates with the damper housing (201) to define an upper chamber (2011) and a lower chamber (2012). One end of the piston rod (203) is connected to the piston (202), and the piston rod (203) is adapted to be connected to the vehicle body. An oil channel (204) is provided in the piston rod (203), and the oil channel (204) is in communication with the lower chamber (2012) and the liquid storage apparatus, such that the oil can flow between the liquid storage apparatus and the lower chamber (2012). The apparatus and the system can improve the operational stability of a vehicle without compromising the comfort of the vehicle.
Provided in the present disclosure are a voltage acquisition structure, and a battery module having the voltage acquisition structure. The voltage acquisition structure comprises: a fixing support adapted to be connected to a plurality of cells; a circuit board mounted on the fixing support; and a plurality of voltage acquisition sheets, which are mounted on the circuit board and connected to the plurality of cells, wherein at least one voltage acquisition sheet comprises a buffer section, and at least part of the buffer section protrudes in a direction away from the cells, such that the voltage acquisition sheet has a displacement allowance in a direction approaching the cells, with the maximum protrusion distance of the buffer section being 0.5-20 mm. The voltage acquisition structure of the embodiments of the present disclosure can absorb height differences between a plurality of cells, improve the fitting tightness between the voltage acquisition sheets and each cell, and thus can achieve reliable acquisition of the voltages of the 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 battery module, a battery pack, and a vehicle. The battery module comprises an inner housing and battery sub-modules; a plurality of grooves are defined in the inner housing, and the space defined in each groove is an accommodating cavity, so that a plurality of accommodating cavities are defined in the inner housing; the plurality of accommodating cavities form an accommodating space, and each accommodating cavity is internally provided with the battery sub-module, so that the battery sub-modules are arranged in the accommodating space.
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 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/258 - Modular batteries; Casings provided with means for assembling
A method for extracting lithium from a salt lake. The method comprises: allowing salt lake brine to pass through a lithium adsorbent at variable speeds so as to enable lithium ions in the salt lake brine to be adsorbed onto the lithium adsorbent, thereby obtaining a lithium-rich adsorbent, wherein during the adsorption process, the flow rate of the salt lake brine is gradually reduced, and the difference between the initial flow rate and the final-stage flow rate of the salt lake brine is 0.5-3 BV/h; cleaning the lithium-rich adsorbent; and desorbing the lithium ions on the cleaned lithium-rich adsorbent by using a lithium ion eluent to obtain a desorption solution.
A vehicle door control method and device, and a vehicle and a computer storage medium. The vehicle door control method comprises: when a touch signal of a first touch area is collected, acquiring vehicle state information and key position information; when it is determined, according to the vehicle state information and the key position information, that the touch signal of the first touch area is valid and is a safety lock unlocking request signal, controlling a vehicle to unlock a safety lock, and driving all door handles of the vehicle to extend out; and after all the door handles extend out, if a touch signal of a second touch area corresponding to any door handle is collected, determining, according to the vehicle state information, that the touch signal of the second touch area is valid, and controlling a vehicle door corresponding to the door handle to be unlocked.
A cooling device for a motor controller, the motor controller, and a vehicle. The cooling device for the motor controller comprises a motor controller box and a water channel cover plate mounted on the motor controller box; the motor controller box comprises a water channel water inlet, an internal box water channel water inlet, an internal box water outlet, and a water channel water outlet; the water channel cover plate comprises a water channel cover plate water inlet, a power module water inlet, a mounting groove, a power module water outlet, and a water channel cover plate water outlet; when a power module of the motor controller is mounted in the mounting groove, a heat dissipation surface of the power module and the mounting groove of the water channel cover plate are sealedly mounted to form a cooling accommodating cavity; the water channel water inlet is sequentially communicated with the internal box water channel water inlet and the water channel cover plate water inlet; and the water channel cover plate water inlet is communicated with the power module water inlet, the cooling accommodating cavity, the power module water outlet, the water channel cover plate water outlet, the internal box water outlet, and the water channel water outlet. The pipelines are simple and the applicability is high, such that the problems of unbalanced heat dissipation and complicated internal pipelines of the motor controller are solved.
A display apparatus (100), a vehicle (200), and a control method for the vehicle (200), the display apparatus (100) comprising: a light beam generator (10), the light beam generator (10) comprising a display screen (11), and the light beam generator (10) being used to generate a light beam carrying image information displayed by the display screen (11), the size of the display screen (11) being a first preset size; and a holographic optical waveguide (20), used to display an image of a second preset size at a first preset distance behind the display device (100) according to the light beam carrying the image information, the second preset size being a preset multiple of the first preset size, and the preset multiple being greater than 1. Thus, the display apparatus (100) does not require pupils to be in an uncomfortable state of dilation for a long time, does not cause fatigue and myopia, can achieve an experience similar to watching television programs at home, and can increase an image size without taking up space in the whole vehicle.
B60R 1/00 - Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
A power distribution apparatus, a battery pack, and a vehicle. The power distribution apparatus (1) comprises: a base (100), to which a high-voltage connection portion (110) and a low-voltage connection portion (120) are fixed; a high-voltage loop (200), at least a part of which is assembled on the base, the high-voltage loop being in electrical connection with the high-voltage connection portion, being provided with a positive module connection end (210) and a negative module connection end (220), and comprising a main disconnecting switch core body (230) fixed by the base; a circuit board (300), which is mounted on the base; a low-voltage loop (400), which is integrated into the circuit board and is in electrical connection with the low-voltage connection portion; and a plurality of high-voltage and low-voltage connection pieces (500), one end of each of which is connected to the high-voltage loop so as to be in electrical connection therewith, and the other end of each of which is inserted into the circuit board so as to be in electrical connection with the low-voltage loop. The power distribution apparatus has the advantages of simple and compact structure, a high space utilization rate, a small size, light weight and low cost.
The present disclosure provides a power distribution device, a battery pack and a vehicle. The power distribution device comprises a base, the base being provided with an interface area, and a high-voltage connecting part and a low-voltage connecting part being fixed in the interface area; a high-voltage loop, at least one part of the high-voltage loop being assembled on the base, the high-voltage loop being in lap joint with the high-voltage connecting part to be electrically communicated, the high-voltage loop being provided with a battery cathode connecting end and a battery anode connecting end, components connected in the high-voltage loop being electrically communicated through lap joint, the high-voltage loop comprising a main breaking switch core body, and the main breaking switch core body being fixed to the base to jointly form a first module; a circuit board, the circuit board being mounted on the base; and a low-voltage loop, the low-voltage loop being integrated on the circuit board to jointly form a second module, and the high-voltage loop and the low-voltage connecting part being respectively inserted into the circuit board and are electrically communicated with the low-voltage loop. The power distribution device of the embodiment of the present disclosure has the advantages of being simple and compact in structure, high in space utilization rate, small in size, low in weight, low in cost, high in universality and production efficiency, and the like.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
A battery cell unit (1), a battery (3), and a vehicle. The vehicle or the battery (3) comprises the battery cell unit (1). The battery cell unit (1) comprises a plurality of battery cell modules (10) which are connected in series. Each battery cell module (10) comprises at least one battery cell group (11) and brackets (12) provided at two ends of the at least one battery cell group (11). Each battery cell group (11) comprises a plurality of battery cells (111) stacked in a first direction, and the plurality of battery cells (111) are connected in parallel. The first direction is the thickness direction of the battery cell (111). Each bracket (12) comprises a bracket body (121) and a conductive sheet (122) mounted on the bracket body (121). Each bracket body (121) is provided with at least one tab extension hole (1211), and a tab (112) of the corresponding battery cell (111) passes through the tab extension hole (1211) and is connected to the conductive sheet (122). Each battery cell module (10) further comprises a supporting and fixing member (15), and the supporting and fixing member (15) is provided between the brackets (12) at the two ends of the at least one battery cell group (11).
A power module (100), comprising: a housing (1); and a first bridge arm assembly (2) and a second bridge arm assembly (3), the first bridge arm assembly (2) and the second bridge arm assembly (3) being both mounted in the housing (1), and an insulating member (7) is provided between the first bridge arm assembly (2) and the second bridge arm assembly (3). The first bridge arm assembly (2) is provided with an alternating current terminal (21); the second bridge arm assembly (3) is provided with a direct current terminal (31); the projection of the alternating current terminal (21) in a plane where the direct current terminal (31) is located coincides with at least part of the direct current terminal (31); at least part of the insulating member (7) is arranged between the alternating current terminal (21) and the direct current terminal (31).
H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
A cell unit, a battery, and a vehicle. The cell unit comprises a cell string and a sampling structure. The cell string comprises a plurality of cell groups and at least one fixing support, the plurality of cell groups being arranged in a first direction and connected to each other in series, and the fixing support being arranged at the electrical connection of any two adjacent cell groups. The sampling structure is electrically connected to the plurality of cell groups, and the sampling structure is provided with a notch in which a limiting strip is provided, the limiting strip being connected to an inner wall of the notch. The fixing support is provided with a first protrusion and a second protrusion, which are located in the notch and are arranged in a spaced manner to form a spacing region in which the limiting strip is fitted in a limiting manner.
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple 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 50/284 - 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 50/519 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
13.
BATTERY CAPACITY ESTIMATION METHOD AND APPARATUS, AND COMPUTER STORAGE MEDIUM
Disclosed are a battery capacity estimation method and apparatus, and a computer storage medium. The method includes: acquiring a voltage-capacity curve of a battery in real time in a battery charging process (S110); performing differentiation on the voltage- capacity curve to obtain a voltage differential-capacity curve (S120); determining a voltage knee point in the voltage- capacity curve according to the voltage differential-capacity curve; acquiring a pre-calibrated reference capacity value corresponding to the voltage knee point (S170); acquiring charging electric quantity of the battery from the voltage knee point to a full-charge state (S180); and obtaining actual capacity of the battery based on a sum of the reference capacity value and the charging electric quantity (S190).
A vehicle, which has a brake system. The brake system comprises a brake master cylinder assembly, a displacement sensor, an electric hydraulic assembly and a control unit. The brake master cylinder assembly is suitable for being connected to a brake pedal. The displacement sensor is mounted at the brake master cylinder assembly, so as to measure the displacement of a master cylinder piston in the brake master cylinder assembly. The electric hydraulic assembly and the brake master cylinder assembly are separately arranged and connected by means of a connection oil pipe, so as to realize the communication of a brake fluid, and are suitable for being connected to a wheel brake. The control unit is in communication connection with the displacement sensor and the electric hydraulic assembly, and controls, according to an action or a brake command of the brake pedal, the electric hydraulic assembly to output the brake fluid to the wheel brake.
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
A charging control method and system, and a vehicle. The method comprises: when a first end of a switch circuit (102) is in communication with an external power supply (105), acquiring a phase voltage and a line voltage of any two phases of first terminals among M phases of first terminals; according to the phase voltage and the line voltage, determining a power supply mode of the external power supply (105); and according to the power supply mode, controlling the switch circuit (102) and a charging circuit (103) to charge a target battery (106).
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
H02M 7/21 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
A battery pack (100) and a vehicle (1) are provided. The battery pack is configured to provide electric energy required by the vehicle under different operating conditions. The battery pack (100) includes a task manager (20), a first battery unit (11) and a second battery unit (12). The first battery unit (11) and the second battery unit (12) respond to different operating states of a load and provide the electric energy required under the control of the task manager (20).
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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
Provided are an on-board charger and an electric vehicle. The on-board charger comprises a microprocessor (4) and a DC module (2); a first sampling point (A1) is provided between the DC module (2) and a storage battery (3); a second sampling point (A2) is provided between the storage battery (3) and the microprocessor (4); the microprocessor (4) is configured to: obtain a first voltage value and a current value at the first sampling point (A1), and obtain a second voltage value at the second sampling point (A2); and when the first voltage value is greater than the second voltage value, and the current value is less than a preset current threshold, mark that the storage battery (3) is disconnected from the DC module (2), and record a first difference between the second voltage value and the first voltage value.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
18.
METHOD AND APPARATUS FOR CONTROLLING HEATING OF ELECTRIC DRIVE SYSTEM OFVEHICLE, HEATING SYSTEM, AND VEHICLE
A method and apparatus (100) for controlling an electric drive system (11) of a vehicle to perform heating, and a heating system (1) and a vehicle (10). The electric drive system (11) comprises an electric motor controller (111) and an electric motor (112). The method comprises: determining that a vehicle (10) is in a traveling state; in response to a heating instruction, acquiring a rotation speed value and a torque control value of an electric motor (112), and acquiring a carrier instruction value of an electric motor controller (111); obtaining a first current instruction value according to the rotation speed value and the torque control value, and obtaining a second current instruction value according to the torque control value and the first current instruction value; adjusting a control signal of the electric motor controller (111) according to at least one of the second current instruction value and a second carrier frequency; and controlling the running of the electric motor (112) according to the adjusted control signal, so that an electric drive system (11) generates heat.
B60H 1/14 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant
B60L 58/27 - 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 heating
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
19.
CURRENT COLLECTOR, ELECTRODE SHEET, AND PREPARATION METHOD FOR CURRENT COLLECTOR
A current collector, an electrode sheet, and a preparation method for a current collector are disclosed. The current collector includes a support layer, a first electrically conductive layer and a second electrically conductive layer. The support layer has a first surface and a second surface arranged opposite to each other. The first electrically conductive layer has a grid structure distributed on the first surface and/or the second surface of support layer. The second electrically conductive layer is provided on a surface of the first electrically conductive layer away from the support layer.
A hanging lug (10), a server (400) and a server system (500). The hanging lug (10) comprises a base (100), a fastener (180), a snap-fit assembly (17), and an elastic assembly (190), wherein the fastener (180) is connected to the base (100); the snap-fit assembly (17) is rotatably connected to the base (100) so as to switch between a first position and a second position; when the snap-fit assembly (17) is located at the first position, the snap-fit assembly (17) blocks the fastener (180); when the snap-fit assembly (17) is located at the second position, the snap-fit assembly (17) unblocks the fastener (180); the elastic assembly (190) is connected between the snap-fit assembly (17) and the base (100); and in response to a pressing operation acting on the snap-fit assembly (17), the elastic assembly (190) drives the snap-fit assembly (17) to rotate from the first position to the second position and remain in the second position.
A battery positive electrode material. The battery positive electrode material comprises lithium ferromanganese phosphate particles and active particles dispersed in gaps of lithium ferromanganese phosphate particles. The active particles comprise one or more of lithium nickel cobalt manganate particles, lithium nickel cobalt aluminate particles, lithium-rich manganese-based material particles, lithium cobaltate particles, spinel manganic acid lithium LiMn2O4 particles, and layered lithium manganate LiMnO2 particles. The ratio of median particle diameters of the lithium ferromanganese phosphate to the active particles is 3-8. In the battery positive electrode material, the mass percentage content of the lithium ferromanganese phosphate is 70%-90%, and the mass percentage content of the active particles is 10%-30%. Also provided is an application of the battery positive electrode material.
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 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
A steering wheel hand feeling compensation method, which is applied to a multi-motor drive vehicle. A first motor of the multi-motor drive vehicle is configured to drive a left front wheel of a vehicle, a second motor is configured to drive a right front wheel of the vehicle, and a third motor is configured to drive a steering gear. According to the method, when the vehicle steers, a compensation torque magnitude of the third motor is determined according to a driving torque of the first motor and a driving torque of the second motor of the vehicle, and a compensation mode of the third motor is determined according to a traveling state and a steering state of the vehicle; and the third motor is controlled according to the compensation mode and the compensation torque magnitude, and compensation is performed on the basis of an output torque of the original third motor, so that a steering wheel rotation torque caused by unequal left and right driving torques is compensated by the third motor.
Disclosed are a method for preparing a lithium iron phosphate positive electrode material, a positive electrode plate and a lithium ion battery. The method includes: sequentially grinding, spray-drying and sintering a first mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a spherical first lithium iron phosphate material; sequentially grinding, spray-drying, sintering and crushing a second mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a second lithium iron phosphate material with an irregular morphology; and mixing the first and second lithium iron phosphate materials in equal mass ratio to obtain a lithium iron phosphate positive electrode material, the fitted value of the maximum compaction density of which is C, where C=0.0847t1+0.0196T1-0.0095t2+0.0261T2-33.6716. T1 and t1 represent the sintering temperature and sintering time of the first lithium iron phosphate material respectively, T2 and t2 represent the sintering temperature and sintering time of the second lithium iron phosphate material respectively; t1 and t2 are within the range of 7h to 11h, T1 is within the range of 760°C to 780°C, T2 is within the range of 770°C to 800°C; and C is 2.6g/cm3 or more.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
24.
LOW-VOLTAGE POWER SUPPLY SYSTEM AND VEHICLE HAVING SAME
A low-voltage power supply system and a vehicle having same. The low-voltage power supply system comprises: a storage battery; an electric control board, the electric control board being connected to the storage battery, the electric control board being at least integrated with a battery management control module and a motor control module, and the motor control module being configured to control a power module; a control circuit, the control circuit being connected to the battery management control module, and the control circuit being configured to receive a control command from the battery management control module; an MOS tube, the MOS tube being connected to the control circuit; and a battery management system, the battery management system being provided with a contactor. The MOS tube is connected to the contactor and mounted on the electric control board or the battery management system, and the battery management control module controls on-off of the MOS tube by means of the control circuit so as to achieve on-off of the storage battery and the contactor.
H01H 47/32 - Energising current supplied by semiconductor device
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
Disclosed are a server chassis and a server. The server chassis includes a bottom case (2) and a fan module (1). The bottom case (2) includes a bottom plate, and the fan module (1) is arranged in the bottom case (2). The fan module (1) includes a fan support (11), multiple fan bodies (12), and a driving member (13). The fan support (11) is provided with multiple accommodating cavities, and the multiple fan bodies (12) are mounted in the multiple accommodating cavities. The driving member (13) is rotatably connected to the fan support (11), and the driving member (13) is adapted to drive the fan module (1) to move relative to the bottom case (2) in a direction perpendicular to the bottom plate. The fan module (1) moves in and out of the bottom case (2) through the driving member (13). The server includes the server chassis.
A battery pack, a vehicle body, and a vehicle. The battery pack comprises, from top to bottom, a cover plate, battery cells, and a cooling plate, the cooling plate is used as a bottom plate of the battery pack to implement sealing of the battery pack. Moreover, the battery cells are adhered to the cover plate, and the weight of the battery cells is borne by the cover plate, such that the cooling plate is not damaged due to bearing the battery cells, and thus the cooling plate can implement thermal management of the battery cells and can also implement sealing of the battery pack and integration. The cover plate of the battery pack is formed as a vehicle body floor, i.e., on the one hand, the number of parts is reduced, and production costs and the weight of the whole vehicle are reduced; and on the other hand, the ground clearance of the battery pack is larger, and the arrangement space of the battery pack is larger, such that the damage probability of the battery pack can be reduced.
The present disclosure discloses an integrated controller (10), an electric drive assembly (20), and a vehicle (30). The integrated controller (10) includes: a box (1); a control unit (2) and a charging/discharging conversion unit (3) that are arranged in the box (1); and a high-voltage interface assembly (4), including a high-voltage interface (41, 42, 43) arranged on the box (1) and a high-voltage connection member arranged in the box (1), the high-voltage connection member being connected with the high-voltage interface (41, 42, 43), the control unit (2), and the charging/discharging conversion unit (3) to receive and distribute a high-voltage battery signal. The integrated controller (10) may cancel arrangement of a high-voltage distribution box, which reduces a demand for a high-voltage wiring harness, reduces costs, and saves vehicle space.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/27 - 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 heating
28.
POWER DISTRIBUTION DEVICE AND TRANSPORTATION DEVICE HAVING POWER DISTRIBUTION DEVICE
A power distribution device, comprising a housing (9), a pre-charging loop module and a main positive loop module. The housing (9) is provided with a mounting cavity; the pre-charging loop module is used to pre-charge a capacitive element in an electric appliance, and the pre-charging loop module comprises a pre-charging relay (8) connected in the housing (9); the main positive loop module is attracted after the pre-charging loop module is disconnected, and the main positive loop module and the pre-charging loop module are stacked one above the other in the mounting cavity; and the main positive loop module comprises a fuse (2) and a main relay core (4), the main relay core (4) being connected in the housing (9). The power distribution device has a high internal space utilization rate and a lower cost. Further disclosed is a transportation device having the power distribution device.
A battery assembly, a battery pack and a vehicle. The battery assembly comprises: a plurality of cells; connectors, wherein the cells are electrically connected by means of the connectors; and heat conductive members, wherein the cells have housings, the heat conductive members are arranged between the connectors and the housings, and the heat conductive members are in heat conductive connection with the connectors and the housings.
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 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
30.
CHARGING SYSTEM AND CHARGING DEVICE FOR BATTERY PACK
Disclosed is a battery pack (4) charging system, including a charging base (1) and a cooling structure. The charging base (1) is arranged at a charging station, and the charging base (1) is adapted to be electrically connected to a battery pack (4), so that the battery pack (4) is charged when the battery pack (4) is placed on the charging base (1). The cooling structure is arranged on the charging base (1). By arranging a charging apparatus and charging system that can carry the charging base (1) for the battery pack (4) and charge the battery pack (4) at the charging station, the battery pack (4) is charged without requiring a vehicle to wait for a long time, thereby meeting heating and heat dissipation requirements of the charging system.
A charging and swapping system for a detachable battery pack includes a battery pack (1) and a support plate (2). The battery pack (1) includes a casing (11) and a battery unit arranged in the casing (11). The support plate (2) is configured to have a detachable connection with the battery pack (1). The support plate (2) is separated from the battery pack (1) through the detachable connection when the battery pack (1) is to be replaced on a vehicle or when charging of the battery pack at a charging station is completed. Quick disconnection and installation of the battery pack (1) and the support plate (2) are realized through the detachable connection, thereby improving user experience when the vehicle requires battery charging or swapping.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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 positive electrode and a battery. The positive electrode comprises a current collector layer and an active component layer. The active component layer covers at least one surface of the current collector layer, and comprises an active material and a conductive component. The conductive component comprises at least one of a one-dimensional conductive material, a zero-dimensional conductive material and a two-dimensional conductive material.
The present disclosure discloses a cylindrical battery, which includes a casing, having an accommodating space; and a negative electrode sheet, a first separator, a positive electrode sheet and a second separator that are wound multiple turns to define an electrode core. The casing is co-axial with the electrode core. The electrode core is at least partially received in the space. The positive electrode sheet includes a positive electrode material layer and a positive electrode foil layer. The negative electrode sheet includes a negative electrode material layer and a negative electrode foil layer. At least some of the wound turns of the electrode foil layer extends toward one end of the casing to form a positive electrode tab. At least some of the wound turns of the negative electrode foil layer extends toward the other end of the casing to form the negative electrode tab. As a result, a portion of the positive electrode end surface of the electrode core that is not covered by the positive electrode tab is located at at least one side of the positive electrode tab, and a portion of the negative electrode end surface of the electrode core that is not covered by the negative electrode tab is located at at least one side of the negative electrode tab.
A dry process-based battery pole piece and a battery. The dry process-based battery pole piece comprises: a metal current collector, on which pores are formed; and a self-supporting electrode film comprising a first electrode film and a second electrode film, the first electrode film being disposed on one side of the metal current collector, and the second electrode film being disposed on the side of the metal current collector facing away from the first electrode film. The first electrode film and the second electrode film are configured to be pressed and connected by means of an external force. The first electrode film and the second electrode film are attached to the metal current collector; and the first electrode film and the second electrode film are connected to each other at positions corresponding to the pores.
The present disclosure provides a battery box, a battery pack with the battery box, and a vehicle. The battery box (100) includes a metal frame (10). Multiple accommodating cavities (101) for accommodating cells (500) are formed in the metal frame (10). An inner surface of the accommodating cavity (101) is provided with an insulation coating (40). A thickness D of the insulation coating meets: D="V×A" /"p×I" , where I represents a test current, V represents a test voltage, and p represents a volume resistivity of the insulation coating; D represents a spraying thickness of the insulation coating; and A represents a total spraying area of the insulation coating.
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
The present disclosure provides a battery cold plate and a battery system. The battery system includes batteries and the battery cold plate. The battery cold plate includes two external interfaces, two convergence pipelines, and multiple branches. The two external interfaces are respectively in communication with middle positions of the two convergence pipelines, so that the flow path of cooling liquid in the convergence pipeline is enabled to be half of the length of the convergence pipeline, so that the along-the-way flow resistance of the cooling liquid in the convergence pipeline can be reduced. The multiple branches are arranged side by side, and both ends of each of the branches are respectively in communication with the two convergence pipelines through multiple throttling ports. A total cross-sectional area of multiple throttling ports in a branch close to the external interface is less than a total cross-sectional area of multiple throttling ports in a branch away from the external interface, the cross-sectional areas of various sub-branches are the same, the flow resistance of the various branches can be balanced, it is ensured that the flow resistance in the various branches is consistent, and the flow rate of the cooling liquid in the various branches is made to be in balance, further making the temperature of various positions of the cold plate uniform, improving the heat dissipation balance and efficiency and facilitating lowering the demand of the system for the power of a circulation pump, which further reduces the system cost.
Provided are a battery pack using a method for assembling a battery pack and a vehicle. The battery pack includes a box and battery modules. The box is provided with cavities inside. The battery module includes foam and multiple cells. The foam is arranged between adjacent cells. The method for assembling a battery pack includes the following steps: the battery module is loaded into an insulating bag; the insulating bag is vacuumized so that the foam is compressed to reduce the volume of the battery module; and after the battery module of the reduced volume is inserted into the cavity, a vacuum state is released and positive and negative electrodes of the battery module are exposed.
A power battery has a box. The box includes a tray, a liquid cooling plate, and a cold expansion portion. An accommodating space for accommodating cells is provided in the tray. The liquid cooling plate is connected to the tray at an outer surface of at least one of the top and bottom of the tray. A flow channel through which a cooling liquid flows is defined jointly by the liquid cooling plate and the outer surface of the tray. The cold expansion portion is arranged in the flow channel, and is connected to at least one of the tray and the liquid cooling plate. A liquid-passing cross-sectional area of the flow channel corresponding to an expansion region is reduced when the cold expansion portion expands.
The present disclosure provides a battery pack (100) and a vehicle. The battery pack (100) includes: an enclosure (10); a cell arranged in the enclosure (10); and a distribution box (30) arranged in the enclosure (10). The enclosure (10) includes a housing (11) and a cover body (12). A side of the housing (11) is provided with a picking and placing opening (101) for picking and placing the cell. The cover body (12) is arranged on the side of the housing (11) to close the picking and placing opening (101). The distribution box (30) is located in a position close to the picking and placing opening (101) in the housing (11). A metal plate (31) of the distribution box (30), the housing (11), and the cover body (12) all clad the cell.
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 10/655 - Solid structures for heat exchange or heat conduction
H01M 50/207 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
H01M 50/502 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
A battery pack (100) is provided. The battery pack (100) includes: a battery box (1), the battery box (1) having a distribution cavity; a distribution box (2) being arranged in the distribution cavity; the distribution box (2) including a panel (21); and the panel (21) having a first flow channel and a refrigerant inlet/outlet joint (6) in communication with the first flow channel; and a thermoregulation member (5), the thermoregulation member (5) being connected with the battery box (1); and the thermoregulation member (5) having a second flow channel in communication with the first flow channel.
H01M 10/667 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature
The present application provides a lithium battery and a preparation method therefor, a charging method, and a power vehicle. The lithium battery comprises a positive plate, a negative plate, and a separator and an electrolyte located between the positive plate and the negative plate. A negative electrode material layer of the negative plate contains a lithium-silicon composite negative electrode active material. A surface of the negative electrode material layer has a protective layer or a surface of the lithium-silicon composite negative electrode active material has a protective layer. The protective layer comprises a polymeric matrix and a lithium salt. In a state where the lithium battery is fully charged, the lithium-silicon composite negative electrode active material contains lithium and lithium-silicon alloy Li4.4Si, and the molar ratio of the lithium in the lithium-silicon composite negative electrode active material is 15%-95%.
The present disclosure provides a battery module and a battery pack. The battery module includes: multiple cells and an outer frame. The outer frame includes: four support columns, two side plates, and two end plates. The two side plates are arranged opposite to each other. The two end plates are arranged opposite to each other. The four support columns are respectively connected between end portions of the side plates and the end plates. One of a top and a bottom of the support column is provided with a support platform and another is provided with a fitting hole. The support platform of one battery module is configured to fit in a fitting hole of another battery module.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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 50/503 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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
The present disclosure provides a current collector, a preparation method for a current collector, a negative electrode, and an electrochemical energy storage device. The current collector includes: a first polymer layer; a metal layer, the metal layer being disposed on a side of the first polymer layer; and a second polymer layer, the second polymer layer being disposed on a side of the metal layer far away from the first polymer layer; and in a direction from the first polymer layer to the second polymer layer, the current collector having a number of through-holes that penetrate the current collector.
A lithium iron phosphate positive electrode material, a preparation method thereof, and a lithium ion battery are disclosed. The lithium iron phosphate positive electrode material has an expression formula of LiFe1-xMxPO4/C, in which, 0
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
45.
SAMPLING STRUCTURE, BATTERY PACK, AND ELECTRIC VEHICLE
The present disclosure provides a sampling structure, a battery pack, and an electric vehicle. The sampling structure includes a battery information collector, a plurality of fuses, and a plurality of collection lines. First ends of the collection lines are configured to be connected with corresponding batteries. Connection terminals are arranged on second ends of the collection lines. A plurality of pads are arranged on the battery information collector. First ends of the fuses are welded to the corresponding connection terminals. Second ends of the fuses are welded to the corresponding pads. The collection lines and the battery information collector in the present disclosure are welded through the fuses. The fuses not only can provide connection, but also can provide overcurrent protection.
The present disclosure provides a battery pack (100) and an electric vehicle (1000). The battery pack (100) includes a box (10), a sealing cover (20), a battery string (30), a sampling structure (40), and a battery information collector (50) configured to be connected with a battery management system. The battery string (30) and the sampling structure (40) are arranged inside the box (10). The battery string (30) includes multiple electrically connected batteries (301). The sampling structure (40) includes multiple sampling lines (401). First ends (4011) of the sampling lines (401) are connected with the corresponding batteries (301). Second ends (4012) of the sampling lines (401) are connected with the battery information collector (50). The box (10) is provided with an opening (101). The battery information collector (50) is arranged at the opening (101) of the box (10). The sealing cover (20) is located on an outer side of the battery information collector (50). The sealing cover (20) is configured to seal the opening (101) of the box (10). Since the battery information collector (50) in the present disclosure is arranged at the opening (101) of the box (10), the internal space of the box (10) is not occupied. Through the sealing cover (20), both the sealing of the box (10) and the sealing of the battery information collector (50) can be realized. In this way, the production costs can be reduced.
Disclosed are a lithium-ion battery and a motorized vehicle. The lithium-ion battery comprises a positive electrode plate, a negative electrode plate, an electrolyte, and a separator; the positive electrode plate comprises a positive current collector and a positive electrode material layer disposed on the positive current collector; the negative electrode plate comprises a negative current collector and a negative electrode material layer disposed on the negative current collector; a negative electrode active material in the negative electrode material layer is graphite; the positive electrode material layer comprises a positive electrode active material consisting of a lithium iron manganese phosphate material, a lithium iron phosphate material, and a ternary material; the mass ratios of the lithium iron manganese phosphate material, the lithium iron phosphate material, and the ternary material in the positive electrode active material are respectively A1, A2, and A3, and A1+A2+A3=1; it is defined that: ?=(M4×?4×Y)/[(M1×?1×A1+M2×?2×A2+M3×?3×A3)×X], ?=[M1×(1-?1)×A1+M2×(1-?2)×A2+M3×(1-?3)×A3]×X/[M4×(1-?4)×Y], and the following conditions are satisfied: 1.03???1.15 and 0.55???1.5, wherein X is the amount of the positive electrode active material applied on the positive electrode plate, Y is the amount of graphite applied on the negative electrode plate, the units of M1, M2, M3, and M4 are mAh/g, and the units of X and Y are g.
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 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
A battery pack and a vehicle are provided. The battery pack includes a liquid cooling plate (1), and a battery stack (3) including at least one battery module (31). The liquid cooling plate (1) includes a liquid cooling plate body (11), a liquid inlet (12) and a liquid outlet (13). The liquid cooling plate body (11) has a liquid cooling circuit defined therein. The liquid cooling circuit includes a peripheral liquid inflow channel (111), an effluent liquid collecting channel (112), and an intermediate channel (113) communicating between the peripheral liquid inflow channel (111) and the effluent liquid collecting channel (112). The liquid inlet (12) is connected onto the liquid cooling plate body (11) and communicates with the peripheral liquid inflow channel (111). The liquid outlet (13) is connected onto the liquid cooling plate body (11) and communicates with the effluent liquid collecting channel (112).
A battery pack protection system (100) and a vehicle are provided. The battery pack protection system includes a battery pack (1) and a protective plate (2). The battery pack (1) includes a tray (11). The tray (11) includes a frame (13) and a bottom plate (12). Battery modules are arranged on the bottom plate (12). The protective plate (2) is arranged parallel to the bottom plate (12), and the protective plate (2) is close to a side of the bottom plate (12). At least one sensor (3) is arranged on the protective plate (2). The protective plate (2) is detachably connected to the frame (13).
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
An electronic device includes a housing (10), a functional assembly (20), and a battery (30). An accommodating space is formed in the housing. The functional assembly (20) includes a functional component (210), where the functional assembly (20) is mounted in the housing (10) and occupies a part of the accommodating space. The battery (30) includes a main body portion (310) and a protruding portion (320) and an avoidance portion (330) formed on the main body portion (310), the main body portion (310) and the protruding portion (320) occupy at least a part of the remaining space of the accommodating space, and the avoidance portion (330) is arranged corresponding to the functional component (210) and is configured to avoid the functional component (210).
A battery pack, a control method for a battery pack, and a vehicle. The battery pack comprises a control module (101), battery cells (102), a liquid leakage detection module (103), and a pre-charge switch module (104); the liquid leakage detection module (103) is connected to the control module (101); the liquid leakage detection module (103) is configured to send a liquid leakage signal to the control module (101) when it is detected that liquid leakage occurs in the battery cells (102); the control module (101) is configured to forbid, when a start signal of starting the battery cells (102) is received, the sending of a pre-charge close signal to the pre-charge switch module (104) if the liquid leakage signal is received; and the pre-charge switch module (104) is configured to forbid, when no pre-charge close signal is received, the connection of a pre-charge voltage end and a power supply output end so as to forbid the battery cells (102) from outputting a pre-charge voltage by means of the power supply output end.
G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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
52.
BATTERY INFORMATION SAMPLING COMPONENT, BATTERY MODULE, AND BATTERY PACK
A battery information sampling assembly (10), includes a battery sampling controller (13) and a flexible printed circuit board (12). The flexible printed circuit board (12) is configured to collect information of a corresponding cell (21). The flexible printed circuit board (12) is directly connected to the battery sampling controller (13).
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
A lithium-ion battery (1000) and an electric vehicle are provided. The lithium-ion battery (1000) includes a cell formed by stacking N battery unit (1), and at least one negative electrode lithium replenishing agent film (4). The negative electrode lithium replenishing agent film (4) is an independent lithium replenishing electrode including a current collector (400) and a metal lithium film layer (402) arranged on at least one side surface of the current collector (400), or is a metal lithium film layer laminated on a surface of a negative electrode material layer (201). An areal density ? of the metal lithium film layer and a self-defined parameter ? need to satisfy a certain relationship.
H01M 4/134 - Electrodes based on metals, Si or alloys
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 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
A battery tray (10), a battery pack (1), and an electric vehicle are provided. The battery tray (10) includes a tray body (100), a first protection plate (300), and a second protection plate (200). The first protection plate (300) includes an energy-absorbing plate (302) and high-strength plates (301) located on two sides of the energy-absorbing plate (302), and the energy-absorbing plate (302) is in a cellular structure. A wave impedance value of the second protection plate (200) is smaller than a wave impedance value of the high-strength plate.
A dispersant for a lithium ion battery and a preparation method thereof, a positive slurry, and a lithium ion battery are provided. The dispersant includes a structural unit A derived from N-vinylpyrrolidone, a structural unit B derived from a conjugated diene monomer, and a structural unit C derived from an organic acid monomer. The organic acid monomer includes one or more of an unsaturated sulfonic acid monomer, an unsaturated phosphoric acid monomer, and an unsaturated carboxylic acid monomer.
A dispersant for a lithium ion battery and a preparation method thereof, a positive slurry, and a lithium ion battery are provided. The dispersant includes a structural unit A derived from a solvophilic monomer, a structural unit B derived from a conjugated diene monomer, and a structural unit C derived from a high-adhesion monomer. The solvophilic monomer includes one or both of N-vinylpyrrolidone and an acrylamide monomer. The high-adhesion monomer includes one or both of an unsaturated nitrile monomer and an acrylate monomer.
C08F 236/04 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
C08F 236/12 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with nitriles
57.
BATTERY MODULE, BATTERY AND ASSEMBLY METHOD FOR BATTERY MODULE
A battery module includes: a housing including a mounting space; at least one electrode core assembly disposed in the mounting space; and a glue container connected with the at least one electrode core assembly and located in the mounting space, where the glue container includes a groove with an open end, and the open end of the groove is spaced apart from a top wall or a bottom wall of the housing.
An intelligent connecting sheet (2), a battery pack, and a vehicle are provided. The intelligent connecting sheet (2) includes a conductive connection member (21) and a cut-off apparatus (221). Two ends of the conductive connection member (21) are respectively connected to terminals of two adjacent battery cores of the battery pack. The cut-off apparatus (221) is configured to, when receiving a cut-off signal, cut off the conductive connection member (21).
Provided is a lithium-ion battery, including a positive electrode plate, a separator, and a negative electrode plate. The separator is arranged between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode current collector and a positive electrode active layer laminated in sequence. A positive electrode active material in the positive electrode active layer includes lithium manganese iron phosphate and a ternary material. The negative electrode plate includes a negative electrode current collector and a negative electrode active layer laminated in sequence. The negative electrode active layer includes a composite layer and a lithium replenishing layer. A negative electrode active material in the composite layer includes a carbon material and SiOx. An areal density of lithium in the lithium replenishing layer is m2=a*M1*m1*?*(1-?)/M2.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
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 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 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A lithium ion battery is provided, which includes a positive electrode sheet and a negative electrode sheet. The positive electrode active material of the positive electrode sheet includes lithium manganese iron phosphate and a ternary material. The negative electrode active material of the negative electrode sheet is graphite. The lithium ion battery meets the following formulas:1.08?(M3*?3*y)/[(M1*?1*A1+ M2*?2*A2)* x] ?1.12 (1) and0.49?[M1*(1-?1)*A1+M2*(1-?2)*A2]*x/[M3*(1-?3)*y]?1.15 (2)where M1 is the first-charge specific capacity of lithium manganese iron phosphate, unit: mAh/g; ?1 is the initial efficiency of lithium manganese iron phosphate; A1 is the percent by mass of lithium manganese iron phosphate in the positive electrode active material; M2 is the first-charge specific capacity of the ternary material, unit: mAh/g; ?2 is the initial efficiency of the ternary material; A2 is the percent by mass of the ternary material in the positive electrode active material; M3 is the first-discharge specific capacity of graphite, unit: mAh/g; ?3 is the initial efficiency of graphite; and x is the coating amount of the positive electrode active material, and y is the coating amount of the negative electrode active material, where x and y are expressed in the same unit.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
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 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/54 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of silver
H01M 4/56 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
A battery pack (100) and a vehicle (1000) having same are disclosed. The battery pack includes: a battery core; a bottom plate, where the bottom plate is disposed under the battery core to support the battery core; a top plate, where the top plate is disposed above the battery core; a mounting beam, where the mounting beam includes a main beam portion and a bottom beam portion, the main beam portion is located between the bottom plate and the top plate, and the bottom beam portion is connected to a lower surface of the main beam portion and disposed under the bottom plate; and a connection assembly, where the connection assembly is configured for mounting the battery pack to a mounting point, and the connection assembly couples with the mounting beam to provide the mounting beam an upward acting force when the battery pack is mounted to the mounting point.
A track beam unit (100) and a track beam (1000) are provided. The track beam unit includes a main component (1) and a guide component (2). The main component includes a top plate (11), a bottom plate (12), and a web plate (13). The guide component includes a guide plate (21) and a connecting structure (22). The guide plate is arranged between the top plate and the bottom plate. The guide plate is a vertically arranged planar plate structure extending in a longitudinal direction and is spaced apart from the web plate in a transverse direction. The connecting structure is respectively assembled and connected with the main component and the guide plate.
Disclosed in the present application are a cell (10), a battery (100), and a battery pack. The cell (10) comprises: at least one pole core (20). Each pole core (20) comprises a plurality of tabs (201). The plurality of tabs (201) are joined to each other to sequentially form a tab end staggered layer area (203), a tab welding area (204), and a prewelding and press fitting area (205). Portions of the plurality of tabs (201) exposed to the pole cores (20) form a tab exposure area (206). The length of the exposed tabs (201) exposed to the pole core (20) in the tab exposure area (206) is determined according to the width of the tab end staggered layer area (203), the width of the tab welding area (204), the width of the prewelding and press fitting area (205), the thickness of the pole core (20), and the tab bending angle of the tabs (201).
The present disclosure provides a power conservation control method and apparatus for a vehicle, and a readable storage medium, which are used for resolving the problem of a low success rate of starting an engine of a vehicle and a consequently relatively high risk of breaking down. The method part includes: obtaining a minimum predicted ambient temperature within a preset time period; determining a minimum ambient temperature according to the minimum predicted ambient temperature and a current ambient temperature; if the minimum ambient temperature is less than or equal to a first preset temperature threshold, determining a minimum power conservation point of a traction battery according to the minimum ambient temperature; and performing mandatory power conservation control on the vehicle according to the minimum power conservation point, so that the remaining power of the traction battery is not less than the minimum power conservation point.
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]
Provided are an electrode plate and a lithium-ion battery, the electrode plate includes a current collector layer, a semiconductor layer and an alkali metal replenishing layer. The semiconductor layer is disposed on at least one surface of the current collector layer. The alkali metal replenishing layer is a lithium-replenishing agent layer or a sodium-replenishing agent layer. The alkali metal replenishing layer is arranged on a side of the semiconductor layer far away from the current collector layer.
A battery core (10) and a battery are provided. The battery core (10) includes a plate (1), a separator (2), a tab (3), and an insulating support portion (4). The tab (3) is connected with the plate (1). The insulating support portion (4) is arranged on an end of the plate (1) and supports the tab (3). The tab (3) extends through the insulating support portion (4) and extends outward.
A battery pack (100) and an electric vehicle. The battery pack (100) comprises a tray (11) and a vapor chamber (12); the tray (11) has an accommodating space (110); the accommodating space (110) has a top opening; the vapor chamber (12) is provided at the top opening of the accommodating space (110); the vapor chamber (12) comprises an inner surface facing the accommodating space (110) and an outer surface opposite to the inner surface; and a plurality of cooling pipelines (14) that are sequentially arranged are provided on the outer surface of the vapor chamber (12).
A battery pack housing (10) includes a tray (110), a middle beam (120), a cover plate (130) and a mounting member. The tray (110) includes a bottom plate (1101) and a plurality of side beams and forms a receiving space for accommodating a battery unit (20). The receiving space is open at one side. The cover plate (130) is configured to close the open side of the receiving space. The plurality of side beams include two first side beams (1102) opposite to each other. The middle beam (120) is in the receiving space and two ends of the middle beam along a length direction are respectively spaced by a predetermined distance from or in contact with the two first side beams (1102).
H01M 50/10 - Primary casings, jackets or wrappings of a single cell or a single battery
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 pack (100) is provided, which includes a tray (10), the tray(10) being provided with an accommodating groove(l1), and at least one through hole (12) is provided on a side wall of the accommodating groove (11); at least one battery array (20), the at least one battery array (20) being arranged in the accommodating groove (11), each of the at least one battery array (20) including multiple batteries (21) arranged in sequence, and each of the batteries (21) includes an electrode terminal (22) at the side facing the through hole (12); and at least one electrical connector (30), the at least one electrical connector (30) being arranged in the accommodating groove (11) and connected to the electrode terminals (22) of at least two batteries, where the through hole (21) allows the electrode terminals (22) and the electrical connector (30) to be exposed.
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
70.
LITHIUM ION BATTERY, POWER BATTERY MODULE, BATTERY PACK, ELECTRIC VEHICLE, AND ENERGY STORAGE DEVICE
The present application provides a lithium-ion battery, a power battery module, a battery pack, an electric vehicle, and an energy storage device. The lithium-ion battery comprises a housing and a cell encapsulated in the housing; the cell comprises a positive plate, a negative plate, and a separator located between the positive plate and the negative plate; the positive plate comprises a positive electrode current collector and a positive electrode material layer loaded on the positive electrode current collector; the one having the lowest melting point in the positive electrode current collector, the positive electrode material layer, the negative plate, and the separator is defined as an effective component; and the effective component satisfies the following condition (aa).
The present disclosure relates to a battery energy processing device and method, and a vehicle. The device includes: a first inductor, where a first end of the first inductor is connected with a positive electrode of a battery; a second inductor, where a first end of the second inductor is connected with the positive electrode of the battery; a first phase bridge arm, where a midpoint of the first phase bridge arm is connected with a second end of the first inductor; a second phase bridge arm, where a midpoint of the second phase bridge arm is connected with a second end of the second inductor; an energy storage element, where a first end of the energy storage element is connected with a first confluent end; a second end of the energy storage element is connected with a second confluent end; a controller, configured to control the first phase bridge arm and the second phase bridge arm to charge and discharge the battery through the first inductor and the second inductor to heat the battery, where the first inductor and the second inductor are in different operating states. 80352
B60L 58/27 - 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 heating
Provided in the present application are a lithium ion battery, a power battery module, a battery pack, an electric vehicle, and an energy storage apparatus. The lithium ion battery comprises a casing and an electrode core packaged in the casing. The electrode core comprises a positive electrode piece, a negative electrode piece, and a separator located between the positive electrode piece and the negative electrode piece. The positive electrode piece comprises a positive electrode current collector and a positive electrode material layer loaded on the positive electrode current collector. The one that has the lowest melting point among the positive electrode current collector, positive electrode material layer, negative electrode piece, and separator is defined as an effective component, and the effective component meets a condition (aa).
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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 4/70 - Carriers or collectors characterised by shape or form
73.
LITHIUM ION BATTERY, POWER BATTERY MODULE, BATTERY PACK, ELECTRIC VEHICLE, AND ENERGY STORAGE DEVICE
The present application provides a lithium-ion battery, a power battery module, a battery pack, an electric vehicle, and an energy storage device. The lithium-ion battery comprises a housing and an electrode core packaged in the housing; the electrode core a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negative electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode material layer supported on the positive electrode current collector; the one having the lowest melting point among the positive electrode current collector, the positive electrode material layer, the negative electrode sheet, and the separator is defined as an effective component; and the effective component satisfies a condition shown in a figure.
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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 4/70 - Carriers or collectors characterised by shape or form
74.
BATTERY PACK HOUSING, BATTERY PACK AND ELECTRIC VEHICLE
The present disclosure provides a battery pack housing, a battery pack, and an electric vehicle. The housing includes a housing body, where the housing body includes multiple connected sub-housings, and at least one sub-housing is provided with at least one reinforcing plate therein. The sub-housing includes a top plate and a bottom plate arranged opposite to each other in a first direction, where the first direction is a height direction of the housing. The reinforcing plate is located between the top plate and the bottom plate, the at least one reinforcing plate is connected to the top plate and the bottom plate, and the at least one reinforcing plate divides the interior of a corresponding sub-housing into multiple accommodating cavities. A mounting portion is provided on the housing, which is configured to be connected and fixed to an external load. The battery pack housing according to the present disclosure has high structural strength, high space utilization rate, simple structure, high assembly efficiency, and high versatility.
The present disclosure provides a battery core assembly (10), a battery (100), a battery pack (200), and a vehicle (300). The battery core assembly (10) includes an encapsulation film (11) and an electrode core assembly (12). The electrode core assembly is arranged in an accommodating cavity (110) defined by the encapsulation film, and the electrode core assembly (12) includes at least one electrode core (121). The electrode core assembly is provided with two electrode lead-out members (122) of opposite polarities for current output. An intermediate ring (13) is further arranged in the accommodating cavity (110) at a side of the electrode core assembly (12) provided with the electrode lead-out member, and provided with an electrode lead-out hole (131) for leading the electrode lead-out member out. Moreover, the present disclosure further provides a battery (100), a battery pack (200), and a vehicle (300) based on the battery core assembly provided in the present disclosure.
Provided is a battery (100), including a housing (10) and multiple electrode core sets (20) encapsulated in the housing (10). Every two adjacent electrode core sets (20) are connected in series. The electrode core set (20) includes an encapsulation film (201) and at least one electrode core (202), and the electrode core (202) is arranged in an accommodating cavity formed by the encapsulation film (201). The electrode core set (20) includes a first electrode (21) and a second electrode (22). The first electrode (21) and the second electrode (22) protrude out of the encapsulation film (201). The first electrode (21) of one of the two adjacent electrode core sets (20) is electrically connected to the second electrode (22) of the other electrode core set. A gap between the two adjacent electrode core sets (20) is filled with an insulating material so as to form an insulating spacer (30) between the two adjacent electrode core sets (20). A connection part of the two adjacent electrode core sets (20) is arranged in the insulating spacer (30).
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 50/242 - 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 50/289 - 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
77.
BATTERY CORE ASSEMBLY, BATTERY, BATTERY PACK AND VEHICLE
An electrode core assembly is provided, which includes an encapsulation film (11), an electrode core (12) and an spacer ring (13). The electrode core (12) and the spacer ring (13) are both arranged in an accommodating cavity defined by the encapsulation film (11). The electrode core (12) includes an electrode core body (121) and two electrode lead-out members of opposite polarities that are electrically connected to the electrode core body. The length of the electrode core body (121) extends along a first direction. Two opposite ends of the electrode core body (121) in the first direction include a V-shaped end face (1211) with a tip and protruding outward from the electrode core body (121), and the positions where the two electrode lead-out members are connected to the electrode core body (121) are respectively located at the tips of the two V-shaped end faces (1211). The spacer ring (13) includes an inclined portion (131) on the V-shaped end face (1211), and the inclined portion (131) is provided with an electrode lead-out hole (1310) penetrating through the spacer ring (13) and configured to lead out the electrode lead-out member.
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
The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a housing and multiple electrode core strings electrically connected to each other and arranged in the housing. The housing includes a housing body. The housing body includes multiple sub-housings connected to each other. At least one sub-housing is provided internally with at least one reinforcing plate. Each of the sub-housings includes a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between the top plate and the bottom plate. The at least one reinforcing plate is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity is provided internally with at least one electrode core string. Each of the electrode core strings includes multiple electrode core assemblies sequentially arranged in a second direction and connected in series. The electrode core assemblies are packaged in a packaging film. A length of the electrode core string extends in the second direction. The housing is provided with a mounting component, and the mounting component is configured to be connected and fixed to an external load.
The present disclosure provides a battery core assembly (10), a battery (100), a battery pack (200), and a vehicle (300). The battery core assembly includes an encapsulation film (11) and multiple electrode core assemblies (12) encapsulated in the encapsulation film. The electrode core assemblies are connected in series to form an electrode core string, and the electrode core assembly includes at least one electrode core (121). A first spacer ring (13) is provided between at least two adjacent battery assemblies. The first spacer ring is joined to the encapsulation film to divide an accommodating space inside the encapsulation film into multiple accommodating cavities (110). At least one first spacer ring is provided with at least one first liquid reservoir (132), and each first liquid reservoir communicates with one of the accommodating cavities at both sides of the first spacer ring. Moreover, the present disclosure further provides a battery, a battery pack, and a vehicle based on the battery core assembly provided in the present disclosure.
A bus is provided, including: a frame assembly including a front frame, a rear frame and a hinge turntable therebetween; carriages including a front carriage having a front carriage body and a front carriage floor, and a rear carriage having a rear carriage body and a rear carriage floor; a front axle and a middle axle disposed at a bottom of the front frame; a rear axle disposed at a bottom of the rear frame; a first group of battery packs including a first battery pack disposed within a rear cabin in the rear of the rear carriage body and a second battery pack disposed on the rear frame; a second group of battery packs disposed on upper surfaces of top roofs of the front and rear carriage bodies; a third group of battery packs disposed on the front carriage floor and between the front axle and the hinge turntable.
An electrochemical storage cell (300) is provided. The cell (300) includes a core (200) having a cathode sheet (110), an anode sheet (105), and a separator sheet (115). The core (200) is located within a shell (305) having an open end. An end cap assembly (325) is provided to close the open end. A terminal in electrical communication with one of the cathode sheet and the anode sheet extends through the end cap (1605) from an interior portion of the electrochemical storage cell (300) to an external portion thereof. A protection cover (6105) that generally conforms to the outermost portions of the end cap assembly (325) is provided and includes a first cover half (6200a) having a first mating structure (6205a) and a second cover half (6200b) having a second mating structure (6205b) for engagement with the first mating structure (6205a). The first and second cover halves (6200a, 6200b) are adapted for assembly (325) with one another about the terminal.
82.
CONSTRUCTION OF ELECTROCHEMICAL STORAGE CELL WITH CONDUCTIVE BLOCK
A battery system comprising a battery pack, in the battery pack there are a plurality of cells, which are electrically connected by physical contact (1200) between electncal terminals of adjacent cells (300). A resistive heater (1205) is at-tached to at least some of the electncal terminals in the battery pack to thereby warm the cells to a more optimum operating temperature in response to a sensed temperature.
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
An electrochemical storage cell is disclosed which includes at least one cathode sheet, at least one anode sheet and at least one separator sheet combined to make a core. The core is housed within a rectangular shell with four sides and two ends, sealed with an air-tight seal. The cell further includes a blow out vent in at least one of the two ends of the shell. This blow out vent is adapted to open and release excess pressure above a predetermined level to thereby prevent catastrophic rupture of the shell.
A battery system having interconnected battery packs (2300) is provided. Each battery pack (2300) includes a plurality of rectangular prismatic shaped cells (300). Each cell (300) includes a positive terminal at one end and a negative terminal at the other end. The cells (300) are housed in a battery pack housing (2305) in a side-by-side manner. The cells (300) may be electrically connected in series so that the positive terminal for a cell (300) extends toward and contacts the negative terminal of an adjacent cell (300) and the negative terminal for the cell (300) extends toward and contacts the positive terminal of another adjacent cell (300).
An electrochemical storage cell (300) comprises a core and a rectangular shell (305) that receives the core (200) snugly therein. The rectangular shell (305) has first and second open ends. A first end cap (335) is used to close the first open end. An anode terminal extends through the first end cap (335) from an interior portion of the electrochemical storage cell (305) to an external portion thereof. A first gasket (1405) is secured within the rectangular shell (305) between the first end cap (335) and the core (200) to resiliently hold the core (200) away from the first end cap (335). A second end cap is used to close the second open end. A cathode terminal extends through the second end cap from an interior portion of the electrochemical storage cell to an external portion thereof. A second gasket is secured within the rectangular shell between the second end cap and the core to resiliently hold the core away from the second end cap.
A battery system for storing electrical power and supplying electrical power to a vehicle is provided. The system includes multiple battery packs, and each battery pack includes a plurality of cells (300a, 300b). The cells (300a, 300b) in each battery pack are electrically connected with one another and the multiple battery packs are also electrically connected with one another to combine the total energy output of the cells (300a, 300b) of the system. The electrical connections between at least some of the cells (300a, 300b) include a severable feature(800a, 800b) , whereby the electrical connection is severed locally at the severable feature(800a, 800b) in response to an impact force that is in excess of a predetermined magnitude and/or an overcurrent/overtemperature condition.
A vehicle capable of being driven by a battery system is provided. The vehicle includes at least one motor/generator and a battery system for supplying electrical power to and receiving electrical power from the motor/generator. The battery system includes multiple battery packs, and each battery pack comprises a plurality of cells. The cells in each battery pack are electrically connected with one another. Multiple battery pack housings are provided to house a plurality of cells. Each battery pack housing facilitates electrical connection to one or more other battery packs. The system also includes a compartment containing the multiple battery packs in their housings. The compartment facilitates electrical connection to the motor/generator.
B60L 58/24 - 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
H01M 10/65 - Means for temperature control structurally associated with the cells
88.
A HEAT DISSIPATING DEVICE FOR A BATTERY PACK, AND A BATTERY PACK USING THE SAME
Disclosed herein is a heat dissipating device for a battery pack which comprises a heat collecting plate having a heat collecting channel, a heat dissipating plate having a heat dissipating channel, and a pump, wherein, one port of the heat collecting channel is communicated with one port of the heat dissipating channel, the other port the heat collecting channel is communicated with the liquid outlet of the pump, and the liquid inlet of the pump is communicated with the other port of the heat dissipating channel. A battery pack using the heat dissipating device is also disclosed. During the operation of the heat dissipating device, the heat generated by the cells can be collected in the heat collecting plate and absorbed by the cooling liquid pumped into the heat collecting channel by the pump, the cooling liquid carrying the heat flows into the heat dissipating channel, the heat is dissipated outwardly through the heat dissipating plate, and then the cooling liquid is repeatedly pumped from the heat dissipating channel into the heat collecting channel by the pump, such that the heat generated by the cells can be dissipated rapidly and efficiently.
Disclosed herein is a lithium ion battery comprising an electrode core, an electrolyte solution, a metal shell and an end cover assembly, said metal shell comprising an outer wall, an inner wall and a chamber, said electrode core and electrolyte solution being located in the chamber of the metal shell, and said electrode core being connected to the end cover assembly with a electrode terminal of the electrode core, wherein the number of said electrode core is more than one, and the multiple electrode cores are located in the chamber of the metal shell. The lithium ion battery according to the present invention possesses excellent disperse heat dispersion, high mechanical safety, and good high rate discharge performance. In addition, the battery according to the present invention solves the problems of the "wound battery" of the prior art that the electrode plate is long and difficult to wind, and the "stacked battery" of the prior art that the electrode plate is difficult to prepare and pile up by dividing the electrode core of high capacity into multiple electrode core of low capacity placed abreast in the metal shell, whereby simplifying the preparation thereof.
Disclosed herein is a heat dissipating device for a battery pack which comprises a heat pipe and a heat collecting plate comprising a bottom heat collecting plate and an upper heat collecting plate each having a hole therein, wherein two ends of the heat pipe are inserted respectively into the holes in the bottom heat collecting plate and the upper heat collecting plate. A battery using the heat dissipating device is also disclosed. During the operation of the heat dissipating device, since the heat generated by the cells can be colleted in the upper heat collecting plate, then transmitted to the bottom heat collecting plate through the heat pipe, and finally dissipated outwardly by the bottom heat collecting plate, the heat generated by cells can be dissipated rapidly and efficiently.
Disclosed herewith are an additive mixture for the electrolyte of lithium ion secondary batteries and electrolyte of lithium ion secondary batteries comprising the said additive mixture. The additive mixture comprises biphenyl based compound 0.5-95.4 wt%, cyclohexyl benzene based compound 0.1-93.8 wt%, vinylene carbonate 0.4-93.2 wt%, t-alkyl benzene based compound 0.5-96.5 wt%, and phenyl vinyl sulfone 0.5- 95.8% based on total weight of the additive mixture.
H01M 10/0564 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
patents
