Electrovaya Inc.

Canada

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[Owner] Electrovaya Inc. 44
Evonik Litarion GmbH 16
Date
2023 1
2022 3
2019 1
Before 2019 55
IPC Class
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries 12
H01M 4/04 - Processes of manufacture in general 8
H01M 2/02 - Cases, jackets or wrappings 6
H01M 4/139 - Processes of manufacture 6
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx 6
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NICE Class
09 - Scientific and electric apparatus and instruments 18
12 - Land, air and water vehicles; parts of land vehicles 3
07 - Machines and machine tools 2
06 - Common metals and ores; objects made of metal 1
11 - Environmental control apparatus 1
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Status
Pending 2
Registered / In Force 58

1.

LITHIUM-ION CONDUCTING SEPARATOR MEMBRANE

      
Application Number IB2022060855
Publication Number 2023/084457
Status In Force
Filing Date 2022-11-10
Publication Date 2023-05-19
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Dasgupta, Rajshekar
  • Dasgupta, Sankar

Abstract

A ceramic polymer separator, an electrochemical cell comprising the ceramic polymer separator, and a method of preparing the same are provided. The ceramic polymer separator is a lithium-ion conducting and electrically insulating membrane for use in an electrochemical cell, including a rechargeable solid-state lithium-ion battery. The membrane is a composite material composed of a non-woven substrate with a ceramic polymer composite material embedded within the pores and on the substrate surface. The novel separator material is combined with electrodes to form a rechargeable solid-state lithium-ion battery.

IPC Classes  ?

  • H01M 50/457 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
  • H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
  • H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material

2.

RECHARGEABLE SOLID-STATE LITHIUM ION BATTERY

      
Application Number 17696649
Status Pending
Filing Date 2022-03-16
First Publication Date 2022-12-22
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Dasgupta, Sankar
  • Bridges, Colin
  • Dasgupta, Rajshekar
  • Memarzadeh, Elmira

Abstract

An electrochemical cell and a method of preparing the electrochemical cell are provided. The electrochemical cell, such as a lithium battery or a solid-state lithium ion battery, includes a first electrode having a solid polymer electrolyte deposited thereon, wherein the solid polymer electrolyte comprises a microporous polymer swollen with an organic carbonate liquid and a dissociable lithium salt, and a second electrode. The method of preparing an electrochemical cell includes providing the first electrode, immersing the first electrode in an electrolyte solution, depositing the solid polymer electrolyte on the immersed first electrode, and attaching the second electrode to an exposed surface of the solid polymer electrolyte, thereby forming the electrochemical cell. During operation, the solid polymer electrolyte is capable of growing a passivating polymer layer at an interface between the first electrode and the solid polymer electrolyte.

IPC Classes  ?

  • H01M 4/04 - Processes of manufacture in general
  • H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

3.

RECHARGEABLE SOLID-STATE LITHIUM ION BATTERY

      
Application Number IB2022052407
Publication Number 2022/195518
Status In Force
Filing Date 2022-03-16
Publication Date 2022-09-22
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Dasgupta, Sankar
  • Bridges, Colin
  • Dasgupta, Rajshekar
  • Memarzadeh, Elmira

Abstract

An electrochemical cell and a method of preparing the electrochemical cell are provided. The electrochemical cell, such as a lithium battery or a solid-state lithium ion battery, includes a first electrode having a solid polymer electrolyte deposited thereon, wherein the solid polymer electrolyte comprises a microporous polymer swollen with an organic carbonate liquid and a dissociable lithium salt, and a second electrode. The method of preparing an electrochemical cell includes providing the first electrode, immersing the first electrode in an electrolyte solution, depositing the solid polymer electrolyte on the immersed first electrode, and attaching the second electrode to an exposed surface of the solid polymer electrolyte, thereby forming the electrochemical cell. During operation, the solid polymer electrolyte is capable of growing a passivating polymer layer at an interface between the first electrode and the solid polymer electrolyte.

IPC Classes  ?

  • H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

4.

LITHIUM ION BATTERY ELECTRODE WITH UNIFORMLY DISPERSED ELECTRODE BINDER AND CONDUCTIVE ADDITIVE

      
Application Number 17834838
Status Pending
Filing Date 2022-06-07
First Publication Date 2022-09-22
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Das Gupta, Rajshekar
  • Memarzadeh, Elmira
  • Das Gupta, Sankar
  • Haugseter, Bjorn
  • Henriksen, Tom
  • Valøen, Lars Ole
  • Srivastava, Akhilesh Kumar

Abstract

The present disclosure relates generally to an electrode produced with a non-toxic solvent, resulting in a homogeneous mixture with uniform distributions of a conductive additive and a binder. Electrodes produced according to the present disclosure feature narrow binder particle size distribution, which distinguishes such electrodes from typical electrodes produced via a N-Methyl-Pyrrolidone (NMP) process. The resulting microstructure promotes the flow of current through the electrode and has an improved cycling stability due, in part, to the binder's and the conductive additive's ability to bind with the active material particles used in the fabrication of the electrode.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • 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 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • H01M 4/139 - Processes of manufacture
  • H01M 10/058 - Construction or manufacture
  • 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
  • H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx

5.

Lithium ion battery electrode with uniformly dispersed electrode binder and conductive additive

      
Application Number 16288859
Grant Number 11355744
Status In Force
Filing Date 2019-02-28
First Publication Date 2019-08-29
Grant Date 2022-06-07
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Das Gupta, Rajshekar
  • Memarzadeh, Elmira
  • Das Gupta, Sankar
  • Haugseter, Bjorn
  • Henriksen, Tom
  • Valøen, Lars Ole
  • Srivastava, Akhilesh Kumar

Abstract

The present disclosure relates generally to an electrode produced with a non-toxic solvent, resulting in a homogeneous mixture with uniform distributions of a conductive additive and a binder. Electrodes produced according to the present disclosure feature narrow binder particle size distribution, which distinguishes such electrodes from typical electrodes produced via a N-Methyl-Pyrrolidone (NMP) process. The resulting microstructure promotes the flow of current through the electrode and has an improved cycling stability due, in part, to the binder's and the conductive additive's ability to bind with the active material particles used in the fabrication of the electrode.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • 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 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • H01M 4/139 - Processes of manufacture
  • H01M 10/058 - Construction or manufacture
  • 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
  • H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx

6.

Thin film electrochemical cell with a polymer double seal

      
Application Number 15816226
Grant Number 10797277
Status In Force
Filing Date 2017-11-17
First Publication Date 2018-04-26
Grant Date 2020-10-06
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar
  • Das Gupta, Sankar

Abstract

A double-sealed thin film electrochemical pouch cell, comprising a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector, which is double-sealed by a first inner laminate layer forming a primary seal covered by a second outer polymer layer forming a secondary seal The second outer polymer layer comprises embedded particles to increase the thermal conductivity of the second outer polymer layer.

IPC Classes  ?

  • H01M 2/08 - Sealing materials
  • H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature
  • H01M 2/02 - Cases, jackets or wrappings
  • H01M 2/34 - Current-conducting connections for cells with provision for preventing undesired use or discharge

7.

Method for manufacturing of slurry for production of battery film

      
Application Number 15138797
Grant Number 10153482
Status In Force
Filing Date 2016-04-26
First Publication Date 2016-12-15
Grant Date 2018-12-11
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Haugseter, Bjorn
  • Henriksen, Tom
  • Valøen, Lars Ole
  • Srivastava, Akhilesh Kumar

Abstract

The present invention relates to a method for manufacturing slurry for coating of electrodes for use in lithium ion batteries, wherein the method comprises mixing active materials with a binder into a binder solution, and adding an organic carbonate to the binder solution to generate the slurry. The present invention also relates to a method for manufacturing electrodes for a lithium battery cell, wherein the method comprises mixing active materials with a binder into a binder solution, adding an organic carbonate to the binder solution to generate slurry, wherein the above adding step is carried out at temperature above melting temperature of the organic carbonate, coating electrode material with the slurry, drying the coating on the electrode material by drying the organic carbonate, and surface treatment of the slurry so that the electrode is prepared for use in a lithium ion battery cell.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • H01M 10/058 - Construction or manufacture
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/139 - Processes of manufacture
  • H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
  • 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 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates

8.

METHOD FOR PRODUCING ELECTRODE PRECURSORS FOR A BATTERY

      
Application Number EP2015063443
Publication Number 2015/197427
Status In Force
Filing Date 2015-06-16
Publication Date 2015-12-30
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Schormann, Andreas
  • Zechel, Thomas

Abstract

The present invention relates to a method for producing at least one electrode precursor (2) and also to the electrode precursor itself, which electrode precursor has a region (20') which is coated with active material and an uncoated region (40''), and at least one electrode precursor (4) which has a region (20'') which is coated with active material and an uncoated region (40'), wherein the layer thickness of the active material is substantially constant over the coated region (20', 20''), apart from in the end region in the direction of the uncoated region (40'', 40'), from an electrode track (1), wherein the method comprises at least steps (i) to (iii): (i) intermittent application of active material to a track-like carrier (10) so as to form an electrode track (1); (ii) separation of the electrode track (1) along a separation line (30) into the coated regions (20') and (20''); and (iii) separation of the electrode track (1) along a separation line (30') into the uncoated regions (40') and (40'').

IPC Classes  ?

  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/139 - Processes of manufacture
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/66 - Selection of materials
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

9.

METHOD AND DEVICE FOR FILLING AN ELECTROCHEMICAL ENERGY STORAGE CELL WITH AN ELECTOLYTE

      
Application Number EP2014071532
Publication Number 2015/135603
Status In Force
Filing Date 2014-10-08
Publication Date 2015-09-17
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Schuster, Martin
  • Brugger, Bastian Matthias

Abstract

The invention relates to a device and a method for filling an electrochemical energy storage cell (1), which comprises a plurality of electrodes and separators in a sheath (2), with an electolyte (5) containing at least one conducting salt and at least one solvent. The electrolyte (5), in particular the solvent, comprises at least one volatile component (4).

IPC Classes  ?

  • H01M 2/36 - Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out

10.

PRECIPITATION DEVICE AND METHOD FOR PRECIPITATING FERROMAGNETIC PARTICLES

      
Application Number EP2014066467
Publication Number 2015/032556
Status In Force
Filing Date 2014-07-31
Publication Date 2015-03-12
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Giesseler, Mareike
  • Küsgens, Pia
  • Rousche, Jean Claude

Abstract

The invention relates to a precipitation device (1), by which magnetisable particles contained in a material to be cleaned can be precipitated out of the material to be cleaned. In order to be able to achieve a good degree of precipitation in the simplest possible manner, a precipitation device (1) according to the invention comprises a first (4) and a second (4a) material receiving chamber which are connected to one another and between which a magnetic precipitation arrangement (5) is provided. The precipitation device (1) is formed such that the precipitation device (1) can be moved to and fro between a first position, in which the first material receiving chamber (4) is located in a higher position than the second material receiving chamber (4a), and a second position, in which the second material receiving chamber (4a) is located in a higher position than the first material receiving chamber (4). The invention further relates to a method for precipitating magnetisable particles.

IPC Classes  ?

  • B03C 1/033 - Component parts; Auxiliary operations characterised by the magnetic circuit
  • B03C 1/26 - Magnetic separation acting directly on the substance being separated with free falling material
  • B03C 1/28 - Magnetic plugs and dipsticks
  • B03C 1/30 - Combinations with other devices, not otherwise provided for

11.

Thin film electrochemical cell with a polymer double seal

      
Application Number 14370753
Grant Number 09853254
Status In Force
Filing Date 2013-01-07
First Publication Date 2014-12-11
Grant Date 2017-12-26
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar
  • Das Gupta, Sankar

Abstract

A double-sealed thin film electrochemical pouch cell, comprising a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector, which is double-sealed by a first inner laminate layer forming a primary seal covered by a second outer polymer layer forming a secondary seal. The second outer polymer layer comprises embedded particles to increase the thermal conductivity of the second outer polymer layer.

IPC Classes  ?

  • H01M 10/50 - Heating or cooling or regulating temperature (control of temperature in general G05D 23/00)
  • H01M 2/08 - Sealing materials
  • H01M 2/02 - Cases, jackets or wrappings
  • H01M 2/34 - Current-conducting connections for cells with provision for preventing undesired use or discharge
  • H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature

12.

Fluid-cooled battery module containing battery cells

      
Application Number 14370750
Grant Number 10033072
Status In Force
Filing Date 2013-01-07
First Publication Date 2014-11-20
Grant Date 2018-07-24
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar

Abstract

A battery module for receiving battery cells provides cooling through a cooling fluid. Chilled fluid travels first to the hottest part of the battery module and then continues to gradually less hot areas. As the chilled cooling fluid absorbs heat and travels to cooler parts of the battery module, the heat transfer between the fluid and the battery cells decreases because the temperature differential between the cells and cooling fluid decreases, providing a more even temperature distribution across the battery module. The cooling fluid may be contained in a conduit associated with one or more cooling plates. A plurality of slots provide a precise mechanical support for each battery cell, increasing the heat conduction from the cell to the battery module, protecting the battery module from vibration and decreasing contamination in case of thermal runaway or other damage to the cells.

IPC Classes  ?

  • H01M 10/656 - Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
  • H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M 10/625 - Vehicles
  • H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
  • H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/6555 - Rods or plates arranged between the cells
  • H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • H01M 2/02 - Cases, jackets or wrappings

13.

METHOD FOR ALIGNING TWO LASER SENSORS IN RELATION TO EACH OTHER

      
Application Number EP2013067780
Publication Number 2014/044505
Status In Force
Filing Date 2013-08-28
Publication Date 2014-03-27
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Kempf, Roland
  • Dörr, Ulrich
  • Möller, Norbert
  • Mecklenburg, André

Abstract

The invention relates to a method for aligning at least two laser distance sensors in relation to each other, wherein the laser distance sensors each have a laser and a sensor, comprising the following chronological steps A) to D): A) coarse alignment of the two laser distance sensors in relation to each other and introduction of a calibration body having a defined geometry into a measurement structure comprising the laser distance sensors; B) distance measurements of a plurality of measurement points or of a continuous profile on the surface of the calibration body by the laser distance sensors, wherein the calibration body is moved relative to the laser distance sensors in the measurement structure in order to allow the lasers of the laser distance sensors to irradiate the different measurement points or the continuous profile for the distance measurements; C) determination of the position and of the alignment of the two laser distance sensors in relation to each other using the distance measurements and the known geometry and position of the calibration body in the measurement structure; and D) adjustment of at least one of the laser distance sensors using the position and alignment of the laser distance sensors in relation to each other determined in this manner, the aim being a desired position and a desired alignment of the laser distance sensors in relation to each other. The invention further relates to a method for measurement of the thickness of a body or a coating of a coated body in a measurement structure, wherein two laser distance sensors are used in the measurement of the thickness, which laser distance sensors have previously been aligned in relation to each other in the measurement structure using such a method. The invention finally relates to a device for carrying out such a method.

IPC Classes  ?

  • G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
  • G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness

14.

METHOD FOR ORIENTING A LASER SENSOR IN RELATION TO A MEASUREMENT OBJECT

      
Application Number EP2013067805
Publication Number 2014/044508
Status In Force
Filing Date 2013-08-28
Publication Date 2014-03-27
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Kempf, Roland
  • Dörr, Ulrich
  • Möller, Norbert
  • Mecklenburg, André

Abstract

The invention relates to a method for scaling the position and the orientation of at least one laser distance sensor in relation to a calibration body, wherein each laser distance sensor has a laser and a sensor, comprising the following chronological steps A) to C): A) arranging a well-defined calibration body, which has a geometry that is precisely defined at least in some regions, in a measurement set-up comprising the laser distance sensors, wherein the position of the calibration body is precisely defined by arranging the calibration body in the measurement set-up, and coarsely orienting at least one laser distance sensor in relation to the calibration body; B) performing distance measurements of several measurement points or of a continuous course on the surface of the calibration body by means of the laser distance sensor or the laser distance sensors, wherein the calibration body is moved in the measurement setup in relation to the laser distance sensor or the laser distance sensors in order to enable the laser of the laser distance sensor or the lasers of the laser distance sensors to irradiate the various measurement points or the continuous course for the distance measurements; and C) determining the position and the orientation of the at least one laser distance sensor in relation to the calibration body on the basis of the distance measurements and the known geometry and position of the calibration body in the measurement setup. The invention further relates to a method for measuring the thickness of a body or of a coating of a coated body in a measurement setup, wherein at least one laser distance sensor, the position and orientation of which in relation to the calibration body have been determined by means of such a method or which has first been oriented in the measurement setup in relation to a calibration body by means of such a method, is used in the measurement of the thickness of the coating. The invention further relates to a device for performing such methods.

IPC Classes  ?

  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness

15.

SELF-LIMITING ELECTROLYTE-FILLING PROCESS

      
Application Number EP2013062971
Publication Number 2014/001212
Status In Force
Filing Date 2013-06-21
Publication Date 2014-01-03
Owner EVONIK LITARION GMBH (Germany)
Inventor Hecht, Thomas

Abstract

The invention relates to a process for producing an electrochemical cell, in particular a secondary battery or a double-layer capacitor, in which a cell vessel containing at least one porous cell component is filled with a flowable electrolyte. It is based on the object of providing a process that involves simpler apparatus and, in the interests of optimum filling, reacts to the varying free volume with an adapted filling rate of electrolyte. This object is achieved by overfilling with electrolyte, in which the porous cell component is completely submerged, in a first filling step, applying to the filled electrolyte a force that drives out of the cell vessel the part of the electrolyte that is not located in the pores of the porous component, and topping up with electrolyte in a second filling step.

IPC Classes  ?

  • H01M 2/36 - Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out
  • H01M 2/02 - Cases, jackets or wrappings
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

16.

MODEL-BASED ELECTROLYTE FILLING METHOD

      
Application Number EP2013058859
Publication Number 2013/171057
Status In Force
Filing Date 2013-04-29
Publication Date 2013-11-21
Owner EVONIK LITARION GMBH (Germany)
Inventor Hecht, Thomas

Abstract

The invention relates to a method for producing an electrochemical cell, such as in particular a secondary battery, a double-layer capacitor, an electrolytic capacitor, or a fuel cell, in which a cell container containing two one-piece or multi-piece electrodes and at least one separator is filled with flowable electrolyte. The aim of the invention is to adapt the electrolyte amount in an electrochemical cell to the actually available free volume as accurately as possible. The aim is achieved in that the amount of electrolyte to be poured in is determined before the electrolyte is poured in at least while taking into account the actual thicknesses and the actual weights of the electrodes located in the cell container and of the separator located in the cell container. The invention further relates to a method for producing a plurality of such electrochemical cells, to an electrochemical cell that was produced according to the method, to a system for producing electrochemical cells, and to the use of said system to perform the methods according to the invention.

IPC Classes  ?

  • H01M 10/04 - Construction or manufacture in general
  • H01M 2/36 - Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out
  • H01G 9/00 - Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
  • H01M 10/052 - Li-accumulators
  • H01M 10/058 - Construction or manufacture

17.

PERFORATED POLYMER FILMS HAVING IMPROVED TOLERANCE TO TENSILE STRESS

      
Application Number EP2013052660
Publication Number 2013/131716
Status In Force
Filing Date 2013-02-11
Publication Date 2013-09-12
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Pascaly, Matthias
  • Kube, Michael
  • Boes, Ulrich

Abstract

The invention relates to a perforated polymer film having a porosity (P) of 30% to 50% and an arrangement of holes that is characterized by the hole shape, the ratio of the semiaxes of the holes, the orientation of the holes, and the regular arrangement of the holes. The polymer film withstands a greater tensile stress in the longitudinal direction without tearing than with the same porosity and every other arrangement of holes differing in at least one characteristic.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material
  • C08J 7/06 - Coating with compositions not containing macromolecular substances

18.

Method for manufacturing of slurry for production of battery film

      
Application Number 13882501
Grant Number 09324998
Status In Force
Filing Date 2010-10-28
First Publication Date 2013-08-29
Grant Date 2016-04-26
Owner Electrovaya, Inc. (Canada)
Inventor
  • Haugseter, Bjorn
  • Henriksen, Tom
  • Valøen, Lars Ole
  • Srivastava, Akhilesh Kumar

Abstract

The present invention relates to a method for manufacturing slurry for coating of electrodes for use in lithium ion batteries, wherein the method comprises mixing active materials with a binder into a binder solution, and adding an organic carbonate to the binder solution to generate the slurry. The present invention also relates to a method for manufacturing electrodes for a lithium battery cell, wherein the method comprises mixing active materials with a binder into a binder solution, adding an organic carbonate to the binder solution to generate slurry, wherein the above adding step is carried out at temperature above melting temperature of the organic carbonate, coating electrode material with the slurry, drying the coating on the electrode material by drying the organic carbonate, and surface treatment of the slurry so that the electrode is prepared for use in a lithium ion battery cell. Further, the invention also relates to a method for manufacturing a lithium ion battery cell.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
  • H01M 4/139 - Processes of manufacture
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

19.

SEPARATOR CONTAINING AN ORGANIC-INORGANIC ADHESION PROMOTER COMPONENT

      
Application Number EP2013051626
Publication Number 2013/113673
Status In Force
Filing Date 2013-01-29
Publication Date 2013-08-08
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Terwonne, Rolf-Walter
  • Rex, Witold Friedemann
  • Pascaly, Matthias
  • Kube, Michael
  • Hying, Christian

Abstract

The invention relates to a method for producing a separator comprising the following steps: providing a flat, porous substrate, a solvent, ceramic particles and an adhesion promoter; applying a slip by mixing solvent, adhesion promoter and ceramic particles; coating the substrate with the slip and thermally drying the coated substrate to yield the separator. The invention addresses the problem of specifying a method that is suitable for producing separators having a higher ceramic ratio. The problem is solved in that a mixture of water and at least one organic component is used as a solvent; in that a mixture of silanes and at least one acrylic polymer that is cross-linkable under the influence of heat is used as an adhesion promoter; and in that a carboxylic acid preparation and a silicone oil-free defoamer component are added to the slip.

IPC Classes  ?

  • H01M 2/14 - Separators; Membranes; Diaphragms; Spacing elements
  • H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material

20.

THIN FILM ELECTROCHEMICAL CELL WITH A POLYMER DOUBLE SEAL

      
Document Number 02860468
Status In Force
Filing Date 2013-01-07
Open to Public Date 2013-07-11
Grant Date 2020-12-15
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar
  • Das Gupta, Sankar

Abstract

A double-sealed thin film electrochemical pouch cell, comprising a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector, which is double-sealed by a first inner laminate layer forming a primary seal covered by a second outer polymer layer forming a secondary seal The second outer polymer layer comprises embedded particles to increase the thermal conductivity of the second outer polymer layer.

IPC Classes  ?

  • H01M 50/105 - Pouches or flexible bags
  • H01M 50/197 - Sealing members characterised by the material having a layered structure
  • H01M 50/198 - Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness

21.

FLUID-COOLED BATTERY MODULE CONTAINING BATTERY CELLS

      
Application Number CA2013000005
Publication Number 2013/102268
Status In Force
Filing Date 2013-01-07
Publication Date 2013-07-11
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar

Abstract

A battery module for receiving battery cells provides cooling through a cooling fluid. Chilled fluid travels first to the hottest part of the battery module and then continues to gradually less hot areas. As the chilled cooling fluid absorbs heat and travels to cooler parts of the battery module, the heat transfer between the fluid and the battery cells decreases because the temperature differential between the cells and cooling fluid decreases, providing a more even temperature distribution across the battery module. The cooling fluid may be contained in a conduit associated with one or more cooling plates. A plurality of slots provide a precise mechanical support for each battery cell, increasing the heat conduction from the cell to the battery module, protecting the battery module from vibration and decreasing contamination in case of thermal runaway or other damage to the cells.

IPC Classes  ?

  • H01M 2/00 - Constructional details, or processes of manufacture, of the non-active parts
  • H01M 10/50 - Heating or cooling or regulating temperature (control of temperature in general G05D 23/00)
  • H01M 2/02 - Cases, jackets or wrappings

22.

FLUID-COOLED BATTERY MODULE CONTAINING BATTERY CELLS

      
Document Number 02860465
Status In Force
Filing Date 2013-01-07
Open to Public Date 2013-07-11
Grant Date 2020-07-14
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar

Abstract

A battery module for receiving battery cells provides cooling through a cooling fluid. Chilled fluid travels first to the hottest part of the battery module and then continues to gradually less hot areas. As the chilled cooling fluid absorbs heat and travels to cooler parts of the battery module, the heat transfer between the fluid and the battery cells decreases because the temperature differential between the cells and cooling fluid decreases, providing a more even temperature distribution across the battery module. The cooling fluid may be contained in a conduit associated with one or more cooling plates. A plurality of slots provide a precise mechanical support for each battery cell, increasing the heat conduction from the cell to the battery module, protecting the battery module from vibration and decreasing contamination in case of thermal runaway or other damage to the cells.

IPC Classes  ?

  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
  • H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
  • H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method

23.

THIN FILM ELECTROCHEMICAL CELL WITH A POLYMER DOUBLE SEAL

      
Application Number CA2013000006
Publication Number 2013/102269
Status In Force
Filing Date 2013-01-07
Publication Date 2013-07-11
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Bhola, Rakesh
  • Das Gupta, Rajshekar
  • Das Gupta, Sankar

Abstract

A double-sealed thin film electrochemical pouch cell, comprising a cathode current collector, a cathode, an electrolyte, an anode, and an anode current collector, which is double-sealed by a first inner laminate layer forming a primary seal covered by a second outer polymer layer forming a secondary seal The second outer polymer layer comprises embedded particles to increase the thermal conductivity of the second outer polymer layer.

IPC Classes  ?

24.

SEPARATOR WITH ADDITIVE FOR IMPROVING COATING QUALITY AND REDUCING AGGLOMERATES IN CERAMIC COMPOSITE MATERIAL

      
Application Number EP2012053278
Publication Number 2012/143158
Status In Force
Filing Date 2012-02-27
Publication Date 2012-10-26
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Pascaly, Matthias
  • Terwonne, Rolf-Walter
  • Hying, Christian
  • Hahn, Henrik

Abstract

The invention relates to a separator, which comprises on a substrate and in the intermediate spaces of the substrate, which substrate comprises fibres made of an electrically non-conductive material, a porous, electrically non-conductive coating made of oxide particles which include at least one oxide selected from Al2O3, SiO2 and are adhered by an inorganic glue to one another and to the substrate, characterised in that at least one sugar is present in the ceramic coating.

IPC Classes  ?

  • H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material

25.

ELECTRODE MATERIAL HAVING HIGH CAPACITANCE

      
Application Number EP2012051300
Publication Number 2012/113606
Status In Force
Filing Date 2012-01-27
Publication Date 2012-08-30
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Tao, Chuanqi
  • Miessen, Martin
  • Pilgram, Peter
  • Passerini, Stefano
  • Winter, Martin

Abstract

The invention relates to a silicon-carbon composite comprising at least one portion of hard carbon and one portion of silicon powder, said composite being obtained by virtue of the fact that under a noble gas atmosphere a) the hard carbon portion is treated at high energy at least once in a mechanofusion mixer, and b) afterwards the portion of silicon powder is added thereto and the portions are mixed together, or during step a) the portion of silicon powder is added thereto and the mechanofusion treatment is continued, and said composite being characterized in that the composite has an average particle size of less than or equal to 12 μm, a portion of hard carbon of 5 to 50% by weight and a portion of silicon powder of 5 to 50% by weight.

IPC Classes  ?

  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/134 - Electrodes based on metals, Si or alloys
  • H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/1395 - Processes of manufacture of 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

26.

ELECTRODES FOR LITHIUM BATTERIES

      
Application Number EP2011073312
Publication Number 2012/084878
Status In Force
Filing Date 2011-12-20
Publication Date 2012-06-28
Owner
  • ROCKWOOD LITHIUM GMBH (Germany)
  • VOLKSWAGEN AKTIENGESELLSCHAFT (Germany)
  • EVONIK LITARION GMBH (Germany)
Inventor
  • Winter, Martin
  • Jeong, Sangsik
  • Passerini, Stefano

Abstract

The invention relates to a cathode or anode in which the cathode binder or the anode binder comprises or consists of cellulose and/or cellulose derivatives that are soluble only in ionic liquids. The invention also relates to a method for producing same and to the use of cellulose and/or cellulose derivatives that are soluble only in ionic liquids as binders for producing cathodes and anodes, in particular battery electrodes.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/04 - Processes of manufacture in general
  • C08B 1/00 - Preparatory treatment of cellulose for making derivatives thereof

27.

METHOD FOR MANUFACTURING OF SLURRY FOR PRODUCTION OF BATTERY FILM

      
Document Number 02819391
Status In Force
Filing Date 2011-10-24
Open to Public Date 2012-05-03
Grant Date 2017-07-18
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Haugseter, Bjorn
  • Henriksen, Tom
  • Srivastava, Akhilesh Kumar
  • Valoen, Lars Ole

Abstract

The present invention deals with a process for description of a slurry for coating of electrodes for use in lithium ion batteries, where the process as a minimum comprises the steps of a) mix (1) active materials (A) with a binder (B) into a binder solution, and b) add (1) an organic carbonate (C) to a binder solution so that a slurry is generated and the invention is comprising a method for generation of electrodes for a lithium battery cell, where the procedure as a minimum comprises the steps of a) mix (1) active materials (A) with a binder (B) with a binder solution b) add (1) an organic carbonate (C) into a binder solution so that a slurry is generated, c) coat (2) an electrode material (D) with the slurry, d) evaporate/ dry (3) the coating of the electrode material meaning that the organic carbonate (C) is steamed/ dried, and e) surface finishing (5,6,7) the slurry so that the electrode is prepared for use in a lithium ion battery cell. Finally the invention states a procedure for manufacturing of a lithium battery cell.

IPC Classes  ?

  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/13915 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
  • H01M 10/058 - Construction or manufacture
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

28.

BATTERY COMPRISING CUBOID CELLS WHICH CONTAIN A BIPOLAR ELECTRODE

      
Application Number EP2011062208
Publication Number 2012/010539
Status In Force
Filing Date 2011-07-18
Publication Date 2012-01-26
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Pilgram, Peter
  • Hahn, Henrik
  • Barenschee, Ernst Robert

Abstract

The invention relates to a battery (0), comprising a plurality of self-contained, substantially cuboid cell housings (1), in each of which a side face is formed at least in some regions as a negative pole (-) and the opposite side face is designed at least in some regions as a positive pole (+), wherein the cell housings (1) bear against one another, with the pole (-) on the pole (+), and extend between a positive contact (14) and a negative contact (13), and wherein the cell housings (1) are each enclosed by an electrically non-conductive, mechanically supporting frame (2). The aim of the invention is to provide such a battery which has lower internal resistance and is therefore suitable for applications which require rapid charging or discharging (high-power applications). Said aim is achieved by at least one flat bimetal element (7) which is formed of copper and aluminium and is coated with active anode material (9) on the copper side and with active cathode material (8) on the aluminium side and which extends within one of the cell housings (1) parallel to the poles (+), (-) thereof, and is attached to the frame (2) of the cell housing (1) so as to provide ionic sealing and the cell housing (1) is thus divided into at least two series-connected galvanic cells.

IPC Classes  ?

  • H01M 4/66 - Selection of materials
  • H01M 10/04 - Construction or manufacture in general
  • H01M 10/052 - Li-accumulators
  • 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 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof

29.

USE OF N-ETHYL PYRROLIDONE IN THE PRODUCTION OF ELECTRODES FOR DOUBLE-LAYER CAPACITORS

      
Application Number EP2010067552
Publication Number 2011/082873
Status In Force
Filing Date 2010-11-16
Publication Date 2011-07-14
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Pilgram, Peter
  • Modlinger, Armin

Abstract

The invention relates to the use of N-ethyl pyrrolidone in the production of electrodes for double-layer capacitors.

IPC Classes  ?

  • H01G 11/38 - Carbon pastes or blends; Binders or additives therein

30.

METHOD FOR THE CONTINUOUS PRODUCTION OF ELECTRODES

      
Application Number EP2010064032
Publication Number 2011/060982
Status In Force
Filing Date 2010-09-23
Publication Date 2011-05-26
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Modlinger, Armin
  • Mecklenburg, Andre
  • Hentschel, Siiri
  • Lazar, Björn
  • Hahn, Henrik

Abstract

The invention relates to a method for the continuous production of electrodes (9) of electro-chemical cells, in particular of electrodes for lithium-ion batteries, wherein a suspension (4) comprising the electrode active material is applied, by means of a rotating application roller (3), to an endless carrier film (1) which is guided past the application roller (3) by means of a rotating counter-roller (2). The aim of the invention is to develop said method such that waste is minimized in the isolation of the electrodes (9) and cutting through the active material can be circumvented. Said aim is achieved by the invention in that the application roller (3) is designed to be hollow and has at least one outlet opening (7) in the outer surface thereof, that the suspension (4) enters the application roller (3) axially and exits radially from the outlet opening (7) and in that the application roller (3) rolls continuously having the outside surface thereof on the carrier film (1).

IPC Classes  ?

  • H01M 4/04 - Processes of manufacture in general
  • B41F 15/08 - Machines
  • B41M 1/12 - Stencil printing; Silk-screen printing
  • H01M 10/052 - Li-accumulators
  • H01M 4/139 - Processes of manufacture
  • B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns
  • B41F 15/38 - Screens; Frames; Holders therefor curved
  • B41M 1/28 - Printing on other surfaces than ordinary paper on metals

31.

PRODUCTION AND USE OF CERAMIC COMPOSITE MATERIALS BASED ON A POLYMERIC CARRIER FILM

      
Application Number EP2010052553
Publication Number 2010/124892
Status In Force
Filing Date 2010-03-01
Publication Date 2010-11-04
Owner EVONIK LITARION GMBH (Germany)
Inventor
  • Pascaly, Matthias
  • Schuster, Martin
  • Hying, Christian
  • Hörpel, Gerhard
  • Hennige, Volker

Abstract

The invention relates to a ceramic composite material (1), comprising a planar carrier substrate (2) and a porous coating (4) that is applied onto the carrier substrate (2) and contains ceramic particles (3). The problem underlying the invention is that of further developing a ceramic composite material of said type such that lower thicknesses can be achieved while maintaining the high thermal and mechanical stability. Said problem is solved by a ceramic composite material having a polymeric film (2) as the carrier substrate (2), wherein the carrier substrate (2) is provided with a perforation that consists of a plurality of holes (6) arranged at regular intervals, and wherein the perforation is covered by the porous coating (4) at least on one side of the carrier substrate (2). A cross-section of the ceramic composite material according to the invention is shown in figure 1.

IPC Classes  ?

  • H01M 2/16 - Separators; Membranes; Diaphragms; Spacing elements characterised by the material

32.

MAYA ELECTRIC

      
Application Number 144261000
Status Registered
Filing Date 2009-06-25
Registration Date 2012-06-26
Owner Electrovaya Inc. (Canada)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

(1) Electrical vehicles namely automobiles, hybrid cars, concept vehicles namely a prototype automobile used to showcase new technology in the automotive industry, and integral parts and fittings for all of the aforesaid wares; electric motors and engines for automobiles; electrochemical cells and batteries for automobiles, powerpacks, battery accessories namely chargers.

33.

MAYA-300

      
Application Number 144256400
Status Registered
Filing Date 2009-06-23
Registration Date 2012-06-26
Owner Electrovaya Inc. (Canada)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

(1) Electrical vehicles namely automobiles, hybrid cars, concept vehicles namely a prototype automobile used to showcase new technology in the automotive industry, and integral parts and fittings for all of the aforesaid wares; electric motors and engines for automobiles; electrochemical cells and batteries for automobiles, powerpacks, battery accessories namely chargers.

34.

MAYA 300

      
Application Number 144256700
Status Registered
Filing Date 2009-06-23
Registration Date 2012-06-26
Owner Electrovaya Inc. (Canada)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

(1) Electrical vehicles namely automobiles, hybrid cars, concept vehicles namely a prototype automobile used to showcase new technology in the automotive industry, and integral parts and fittings for all of the aforesaid wares; electric motors and engines for automobiles; electrochemical cells and batteries for automobiles, powerpacks, battery accessories namely chargers.

35.

POWERING MOBILITY

      
Application Number 141128600
Status Registered
Filing Date 2008-09-18
Registration Date 2010-10-06
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Electrochemical cells and batteries, namely lithium-ion based batteries.

36.

iBMS

      
Application Number 138061000
Status Registered
Filing Date 2008-01-24
Registration Date 2011-03-25
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Battery management systems for electric vehicles comprising batteries, battery condition detectors, battery cables, battery chargers, battery meters, battery controls for batteries, excluding any products, including batteries, for computers.

37.

BATTERY POWERED VEHICLE OVERVOLTAGE PROTECTION CIRCUITRY

      
Application Number CA2006000764
Publication Number 2006/122395
Status In Force
Filing Date 2006-05-15
Publication Date 2006-11-23
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Dasgupta, Sankar
  • Bhola, Rakesh

Abstract

Battery system with multiple electrochemical cell types, wherein one cell type(s) (e.g., aqueous electrochemical cells) provides overvoltage protection for other cell type(s) (e.g., lithium ion superpolymer electrochemical cells). Battery system for a BPV with interchangeable modules of two or more 1 : 1 replaceable types, wherein each type of module has a different type, or combination, of electrochemical cells. For example, one battery module type may contain aqueous cells suitable for overvoltage protection and high power operation, while another battery module may include lithium ion superpolymer cells for their large capacity and high energy density. Use of lithium ion superpolymer electrochemical cells in low speed battery powered vehicles.

IPC Classes  ?

  • B60R 16/04 - Arrangement of batteries
  • B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
  • B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

38.

ROTOR WITH ODD NUMBER OF SLOTS AND V-SHAPED WINDINGS

      
Application Number CA2006000290
Publication Number 2006/094381
Status In Force
Filing Date 2006-03-06
Publication Date 2006-09-14
Owner ELECTROVAYA INC. (Canada)
Inventor Amariei, Adrian

Abstract

Rotor winding assembly for a rotary electric motor or generator, wherein the rotor has an odd number of slots for receiving the windings and wherein the rotor winding has a V-shaped pattern instead of the conventional H-shaped pattern.

IPC Classes  ?

  • H02K 3/00 - DYNAMO-ELECTRIC MACHINES - Details of windings
  • H02K 1/26 - Rotor cores with slots for windings

39.

Current prediction in a switching power supply

      
Application Number 11193635
Grant Number 07391188
Status In Force
Filing Date 2005-08-01
First Publication Date 2006-06-08
Grant Date 2008-06-24
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Jacobs, James K.
  • Dasgupta, Sankar
  • Vandermeer, David

Abstract

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

IPC Classes  ?

40.

High efficiency switching power supply

      
Application Number 11193630
Grant Number 07432687
Status In Force
Filing Date 2005-08-01
First Publication Date 2006-06-08
Grant Date 2008-10-07
Owner Electrovaya Inc. (Canada)
Inventor
  • Jacobs, James K.
  • Dasgupta, Sankar
  • Vandermeer, David

Abstract

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

IPC Classes  ?

  • G05F 1/10 - Regulating voltage or current
  • G05F 1/44 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only

41.

POWER SUPPLY WITH MULTIPLE MODES OF OPERATION

      
Application Number CA2005001181
Publication Number 2006/012734
Status In Force
Filing Date 2005-07-28
Publication Date 2006-02-09
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Jacobs, James, K.
  • Vandermeer, David
  • Dasgupta, Sankar

Abstract

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (ᡶ95%. ᡶ98%, ᡶ99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

IPC Classes  ?

  • H02M 11/00 - Power conversion systems not covered by the other groups of this subclass
  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
  • H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

42.

HIGH EFFICIENCY SWITCHING POWER SUPPLY

      
Application Number CA2005001182
Publication Number 2006/012735
Status In Force
Filing Date 2005-07-29
Publication Date 2006-02-09
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Jacobs, James, K.
  • Vandermeer, David
  • Dasgupta, Sankar

Abstract

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (ᡶ95%. ᡶ98%, ᡶ99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

IPC Classes  ?

  • H02M 11/00 - Power conversion systems not covered by the other groups of this subclass
  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
  • H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

43.

CURRENT PREDICTION IN A SWITCHING POWER SUPPLY

      
Application Number CA2005001183
Publication Number 2006/012736
Status In Force
Filing Date 2005-07-29
Publication Date 2006-02-09
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Jacobs, James, K.
  • Vandermeer, David
  • Dasgupta, Sankar

Abstract

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (ᡶ95%. ᡶ98%, ᡶ99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

IPC Classes  ?

  • H02M 11/00 - Power conversion systems not covered by the other groups of this subclass
  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
  • H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting

44.

Integrated power supply system

      
Application Number 10822856
Grant Number 07405497
Status In Force
Filing Date 2004-04-13
First Publication Date 2005-10-13
Grant Date 2008-07-29
Owner Electrovaya Inc. (Canada)
Inventor
  • Jacobs, James K.
  • Dasgupta, Sankar
  • Vandermeer, David

Abstract

An ultra-high-efficiency switching power supply system integrating, into a single package, power conversion switches for multiple power supplies, an input power switching block, an output power switching block, control logic for controlling the power conversion switches and control input/output ports. This integrated multiple power supply package is called a Power Bridge and preferably implements the integrated components as one or more integrated circuit chips housed in the package housing. The Power Bridge is a bridge between the microprocessor of a portable computer and its internal and external power sources. The power supply system facilitates board design because the ultra-high-efficiency power module generally requires less space and generates less heat than conventional power supply circuitry. The power supply module improves power management because of improved communications connections between the power supply module control circuitry and other components, such as busses, other bridge modules and embedded controllers.

IPC Classes  ?

  • H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

45.

Battery controller and method for controlling a battery

      
Application Number 10793951
Grant Number 07282814
Status In Force
Filing Date 2004-03-08
First Publication Date 2005-09-08
Grant Date 2007-10-16
Owner Electrovaya Inc. (Canada)
Inventor Jacobs, James K.

Abstract

A battery controller for charging and discharging a plurality of batteries is disclosed. The battery controller has a plurality of direct current to direct current (DC to DC) converters connected to each other in series. Each battery of a plurality of batteries is electrically connectable to a respective DC to DC converter. A co-ordinator connected to each of the plurality of DC to DC converters controls charging and discharging of the battery electrically connected to the respective converter. The co-ordinator can also control charging and discharging of any one of the batteries to ensure that the battery retains sufficient electrical capacity, and, to increase the longevity of the respective batteries. Because each battery is electrically connected to a respective DC to DC converter, the energy from one battery can be used to charge another battery in order to monitor battery characteristics including energy capacity of each battery. Each of the DC to DC converters is selected to operate preferably below 30 volts while the total voltage of the entire battery system can be much more than 30 volts depending on the number of DC to DC converters placed in series.

IPC Classes  ?

  • H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
  • H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

46.

ENERGY STORAGE DEVICE FOR LOADS HAVING VARIABLE POWER CONSUMPTION

      
Document Number 02538299
Status In Force
Filing Date 2004-09-07
Open to Public Date 2005-03-24
Grant Date 2013-05-28
Owner ELECTROVAYA INC. (Canada)
Inventor
  • Dasgupta, Sankar
  • Jacobs, James K.
  • Bhola, Rakesh

Abstract

An electrical energy storage device for storing electrical energy and supplying the electrical energy to a driving motor at different power levels is disclosed. The electrical storage device has an energy battery connected to a power battery. The energy battery has a higher energy density than the power battery. However, the power battery can provide electrical power to the electrical motor at different power rates, thereby ensuring that the motor has sufficient power and current when needed. The power battery can be recharged by the energy storage battery. In this way, the power battery temporarily stores electrical energy received from the energy battery and both batteries can provide electrical energy at the different power rates as required by the motor. The energy storage device can be releasably connected to an external power source in order to recharge both batteries. Both batteries can be recharged independently to optimize the recharging and lifetime characteristics of the batteries.

IPC Classes  ?

  • H03J 7/00 - Automatic frequency control; Automatic scanning over a band of frequencies
  • H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
  • H02J 15/00 - Systems for storing electric energy

47.

MAYA

      
Application Number 122847500
Status Registered
Filing Date 2004-08-23
Registration Date 2010-11-26
Owner Electrovaya Inc. (Canada)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Electrical vehicles namely automobiles, hybrid cars and integral parts and fittings for all of the aforesaid wares; electrochemical cells and batteries, powerpacks, battery accessories namely chargers.

48.

SCRIBBLER

      
Application Number 003260908
Status Registered
Filing Date 2003-07-09
Registration Date 2005-04-19
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Computer hardware, namely tablet computers, mobile and handheld computers, laptop computers.

49.

E.ELECTROVAYA

      
Serial Number 76498039
Status Registered
Filing Date 2003-03-10
Registration Date 2005-12-27
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(Based on Use in Commerce) electrochemical battery cells, batteries and battery packs; rechargeable electrochemical battery cells, batteries and battery packs; rechargers and charging circuits for rechargeable electrochemical battery cells, batteries and battery packs; (Based on Use in Commerce) and (Based on 44(d) Priority Application) Computer hardware namely, table computers, mobile and handheld computers, laptop computers

50.

e.electrovaya

      
Application Number 003088002
Status Registered
Filing Date 2003-03-07
Registration Date 2004-07-16
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Electrochemical cells and batteries, powerpacks, and battery accessories; computer hardware, namely tablet computers, mobile and handheld computers, laptop computers.

51.

E I EI

      
Application Number 115267000
Status Registered
Filing Date 2002-09-13
Registration Date 2003-05-08
Owner ELECTROVAYA INC. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Computer hardware namely, tablet computers, mobile and handheld computers, laptop.

52.

ELECTROVAYA E C

      
Application Number 115182000
Status Registered
Filing Date 2002-09-11
Registration Date 2004-03-12
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Computer hardware namely, tablet computers, mobile and handheld computers, laptop computers.

53.

SCRIBBLER

      
Serial Number 78160721
Status Registered
Filing Date 2002-09-04
Registration Date 2005-03-15
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Computer hardware, namely, tablet computers, mobile and handheld computers, laptop computers

54.

SCRIBBLER

      
Application Number 115006900
Status Registered
Filing Date 2002-08-22
Registration Date 2003-11-20
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Computer hardware namely, tablet computers, mobile and handheld computers, laptop computers.

55.

ELECTROVAYA

      
Application Number 111448200
Status Registered
Filing Date 2001-09-10
Registration Date 2004-01-07
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Electrochemical cells and batteries, powerpacks, battery accessories namely chargers.

56.

ELECTROVAYA

      
Application Number 111413700
Status Registered
Filing Date 2001-09-05
Registration Date 2003-05-08
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Electrochemical cells and batteries, namely lithium-ion based batteries and chargers; batteries; battery accessories.

57.

POWERPAD

      
Application Number 105676300
Status Registered
Filing Date 2000-04-27
Registration Date 2003-02-21
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Batteries including lithium electrochemical cells, lithium-iron-sulphur batteries, lithium-ion based batteries, rechargeable notebook computer batteries and chargers for notebook computer batteries.

58.

EFUEL

      
Application Number 105676400
Status Registered
Filing Date 2000-04-27
Registration Date 2003-11-21
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Batteries including lithium electrochemical cells, lithium-iron-sulphur batteries, lithium-ion based batteries, rechargeable notebook computer batteries and chargers for notebook computer batteries.

59.

SUPERPOLYMER

      
Application Number 101722100
Status Registered
Filing Date 1999-05-28
Registration Date 2003-09-23
Owner Electrovaya Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Batteries including lithium electrochemical cells, lithium-iron-sulphur batteries, lithium-ion based batteries, rechargeable notebook computer batteries and chargers for notebook computer batteries.

60.

ELECTROFUEL

      
Application Number 100746700
Status Registered
Filing Date 1999-03-04
Registration Date 2001-06-14
Owner Electrovaya Inc. (Canada)
NICE Classes  ?
  • 06 - Common metals and ores; objects made of metal
  • 07 - Machines and machine tools
  • 11 - Environmental control apparatus
  • 17 - Rubber and plastic; packing and insulating materials

Goods & Services

(1) High thermal and electrically conductive ceramic goods, namely, glow plugs, nozzles, ceramic fibres, cutting tool inserts for industrial and manufacturing use and ceramic containers used for holding, melting and vaporizing metal for industrial and manufacturing use; electrically conductive ceramic filters for use in exhaust systems (used in combustion engines but not exclusive to the automotive industry) for industrial and manufacturing use.