EP2676314A1 - Procédé de fabrication d'électrodes - Google Patents

Procédé de fabrication d'électrodes

Info

Publication number
EP2676314A1
EP2676314A1 EP12708665.0A EP12708665A EP2676314A1 EP 2676314 A1 EP2676314 A1 EP 2676314A1 EP 12708665 A EP12708665 A EP 12708665A EP 2676314 A1 EP2676314 A1 EP 2676314A1
Authority
EP
European Patent Office
Prior art keywords
temperature
drying
dried
electrode
metallic substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12708665.0A
Other languages
German (de)
English (en)
Inventor
Tim Schaefer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Publication of EP2676314A1 publication Critical patent/EP2676314A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H01G13/04—Drying; Impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making

Definitions

  • the present invention relates to a process for the production of electrodes, in particular of negative electrodes, for electrochemical cells.
  • the electrochemical cells can preferably be used for driving a vehicle with an electric motor, preferably with hybrid drive or in "plug-in" operation.
  • Electrochemical cells especially lithium secondary batteries, because of their high energy density and high capacity, are used as energy stores in mobile information devices, e.g. Mobile phones, in tools or in electrically powered automobiles, as well as in automobiles with hybrid drive application.
  • electrochemical cells in the field of propulsion of automobiles must meet high requirements: the highest possible electrical capacity and energy density, which remains stable over a high number of charging and discharging cycles, with the lowest possible weight.
  • electrochemical cells The longevity of electrochemical cells is often dependent on the aging of the electrodes, in particular on the aging of the negative electrodes. During the aging process, the electrochemical cells lose their capacity and performance. This process takes place to a greater or lesser extent in most common electrochemical cells, and is highly dependent on the Usage circumstances (temperature, storage conditions, state of charge, etc.), but also of the quality and processing of the materials during the manufacturing process of the electrochemical cell. For example, high-quality processing of very pure materials can lead to very long-lived electrochemical cells that age only slightly over a longer period of time, thus losing less capacity and performance.
  • the invention is therefore based on the object of providing an optimized process for the production of electrodes, in particular of negative electrodes for long-lived electrochemical cells.
  • a method for producing electrodes for electrochemical cells in particular of negative electrodes, which comprises the step of: drying a material to be dried for the electrode by means of a temperature gradient, wherein in step of drying at least one UV irradiation is included.
  • the drying of a material to be dried by means of a temperature gradient has the advantage that a gentle drying can be carried out, which nevertheless takes place efficiently.
  • the UV irradiation of the material to be dried for the electrode has the advantage that impurities, in particular organic impurities by oxidation, can be removed at least partially gently and efficiently. Thereby arise primarily non-hazardous and easy-to-dispose decomposition products such as water and C0 2 .
  • the material to be dried of the electrode is at least partially cleaned by the UV irradiation. If the material to be dried is the metallic substrate of the electrode, the adhesion forces of the surface of the metallic substrate are at least partially increased, which leads to an improved adhesion of the electrochemical active material to the metal collector and thus to an improved longevity of the electrode.
  • electrochemical cell is any type of device for the electrical storage of energy to understand.
  • the term defines in particular electrochemical cells of the primary or secondary type, but also other forms of energy storage, such as capacitors.
  • an electrochemical cell is preferably to be understood as a lithium-ion cell.
  • negative electrode means that the electrode emits electrons when connected to a consumer, such as an electric motor.
  • positive electrode means that the electrode receives electrons when connected to a consumer, for example an electric motor.
  • the positive electrode according to this convention is the cathode.
  • An electrode that is to say the positive electrodes and / or the negative electrode, which is produced by the method according to the invention, has at least one metal collector and at least one electrochemical active material.
  • the electrode produced by the method according to the invention has, in addition to the metallic substrate and the electrochemical active material, at least one further additive, preferably an additive for increasing the conductivity, for example based on carbon, for example carbon black, and / or a redox-active additive which reduces the destruction of the electrochemical active material upon overcharge of the electrochemical cell, preferably minimized, preferably prevented.
  • the term "metallic substrate” designates the same component as the terms "electrode carrier” and "collector.”
  • the metallic substrate is at least partially designed as a film or as a network structure or as a fabric, preferably comprising copper or a copper-containing alloy, in particular as rolled copper. especially as a copper band.
  • said metallic substrate comprises aluminum.
  • the metallic substrate can be configured as a film, mesh structure or fabric, which preferably comprises at least partially plastics.
  • the metallic substrate, in particular its surface is pretreated, so that the adhesion force of the surface is at least partially increased. This is achieved, for example, by a wet-chemical treatment with acid, in particular an organic acid, and / or UV irradiation.
  • Suitable sources of UV radiation are, for example, mercury vapor lamps, in particular low-pressure mercury lamps.
  • temperature gradient is understood to mean that the temperature changes along a path.
  • the change in temperature along a path can be continuous or non-continuous, for example, in steps, the temperature can increase or decrease along a path, or As a result, at one point x of the distance, the temperature may be higher or lower than or equal to the temperature at another point y of the distance.
  • An advantage of using a temperature gradient is that the temperature, slowly, and thus gently for the material to be dried, is increased until the Temperature, which is needed for drying the material to be dried, is reached. Thus, the drying is gentle, but still efficient.
  • the material to be dried of the electrode is a metallic substrate whose surface has been treated with a paste of a liquid, such as NMP, and an electrochemical active material, preferably carbon-based, suspended therein.
  • a liquid such as NMP
  • an electrochemical active material preferably carbon-based, suspended therein.
  • the drying by means of temperature gradients is particularly advantageous.
  • the advantage in the present case for electrodes is that the material to be dried, ie the coated substrate, is heated slowly, so that the liquid contained can slowly evaporate and bumps, which can lead to the spalling of the electrochemical active material from the surface of the substrate, at least partially be prevented.
  • an electrode whose longevity has been improved can be obtained by improving the adhesion of the electrochemical active material on the surface of the metallic substrate, that is, in particular, the metal collector surface.
  • foiling is meant that the adhesion between electrochemical active material and metal collector surface is adversely affected, in particular deteriorates, or even no longer exists.
  • the temperature gradient is not greater than 100 ° C, preferably in the range of 10 ° C to 80 ° C, more preferably in the range of 30 ° C to 60 ° C.
  • the drying takes place at least partially under protective gas.
  • the shielding gas can be any gas which does not react with the material to be dried at the ambient conditions prevailing at the time of drying, that is, for example, at high temperatures. Suitable gases are, for example, C0 2 , N 2 or Ar.
  • the use of such protective gases has the advantage that the material to be dried does not come into contact with the ambient air and in particular not with oxygen and thus prevents the material to be dried from reacting in particular with oxygen.
  • ambient air refers to the air which is inside the drying device, which air may correspond in its composition to the respirable air that also prevails outside the drying device, but it may also be that the ambient air contains other components, such as vaporized solvents, or other concentrations of the components that make up the breathable air, such as increased water vapor concentration, or decreased oxygen concentration.
  • “Environmental conditions” are understood to mean the pressure and temperature which are within the range Prevail drying device.
  • the material to be dried is a preferably provided metallic substrate (collector) of the electrode.
  • the drying step may be carried out before or after a pretreatment of the surface of this substrate.
  • the material to be dried is the metallic substrate whose surface is wet-chemically pretreated, in particular purified, in particular with organic acid, in particular with oxalic acid, which is preferably dissolved in NMP.
  • the material to be dried is the metallic substrate whose surface has been coated with electrochemical active material.
  • the entire drying takes place in the absence of air, in particular of oxygen, and under a protective gas atmosphere.
  • the drying takes place only partially in the absence of air, in particular of oxygen, and under a protective gas atmosphere.
  • the drying may be followed by a storage step which likewise takes place at least partially with the exclusion of air, in particular of oxygen, and / or under a protective gas atmosphere.
  • the drying can be subdivided into a plurality of partial steps, preferably in up to ten partial steps, preferably in up to six partial steps, preferably in up to three partial steps.
  • the sub-steps may differ from each other by different, relevant for the drying process parameters, in particular concerning the environment (atmosphere) of the electrode in their treatment or coating, in particular selected from: temperature, pressure, atmosphere used (for example inert gas or ambient air), type of Drying (eg vacuum application, hot air blower, IR lamps or mechanical drying such as by suction, wiping or pressing), UV irradiation, or combinations thereof.
  • environment for example inert gas or ambient air
  • type of Drying eg vacuum application, hot air blower, IR lamps or mechanical drying such as by suction, wiping or pressing
  • UV irradiation or combinations thereof.
  • a first sub-step has a first temperature, which is different from a reference temperature, in particular is increased.
  • a first temperature which is preferably up to 10 ° C, preferably up to 30 ° C, preferably up to 50 ° C, preferably up to 70 ° C higher than the reference temperature.
  • the first temperature does not exceed 100 ° C.
  • the atmosphere may contain inert gas or ambient air.
  • the pressure may be different from a reference pressure, in particular lowered, but may also be equal to the reference pressure.
  • a second sub-step has a second temperature, which is different from the reference temperature and is preferably different from the first temperature in the first sub-step, in particular with respect to this.
  • a second temperature which is preferably up to 10 ° C, preferably up to 30 ° C, preferably up to 50 ° C, preferably up to 70 ° C higher than the reference temperature.
  • the second temperature exceeds 100 ° C Not.
  • the atmosphere may contain inert gas or ambient air.
  • the pressure may be different from the reference pressure, in particular be lowered, but may also be equal to the reference pressure.
  • a third substep comprises UV irradiation of the material to be dried at a third temperature.
  • the third temperature may be the same as the first temperature or the second temperature or the reference temperature.
  • the third temperature may also be different from the first temperature or the second temperature or the reference temperature.
  • the atmosphere may contain inert gas or ambient air.
  • the pressure may be different from the reference pressure, in particular be lowered, but may also be equal to the reference pressure.
  • a fourth sub-step has a fourth temperature which is different from the reference temperature and / or different from the first temperature and / or the second temperature and / or the third temperature, and which is in particular increased in relation to at least one of these temperatures , Preferred is a fourth temperature, which is preferably up to 10 ° C, preferably up to 30X, preferably up to 50 ° C, preferably up to 70 ° C higher than the reference temperature. Preferably, the fourth temperature does not exceed 100 ° C.
  • the atmosphere may contain inert gas or ambient air. In substep four, a protective gas atmosphere (e.g., argon) is particularly preferred.
  • the pressure may be different from the reference pressure, in particular be lowered, but may also be equal to the reference pressure.
  • the reference pressure can be the outside pressure and the reference temperature can mean the outside temperature.
  • the terms "outside pressure” and “outside temperature” refer to the pressure and the temperature which prevail outside the device within which the drying takes place. If, for example, the drying device is located in a production hall, the temperature and the pressure prevailing inside the production hall but outside the drying device are to be understood.
  • the reference temperature is preferably 25 ° C and the reference pressure is preferably 1, 031 bar.
  • Fig. 1 shows an embodiment schematically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une électrode, notamment d'une électrode négative, d'une cellule électrochimique, lequel procédé comprend l'étape qui consiste : à sécher un matériau à sécher de l'électrode au moyen d'un gradient de température, une exposition à des rayonnements UV ayant lieu au cours de cette étape de séchage.
EP12708665.0A 2011-02-14 2012-01-26 Procédé de fabrication d'électrodes Withdrawn EP2676314A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011011156A DE102011011156A1 (de) 2011-02-14 2011-02-14 Verfahren zur Herstellung von Elektroden
PCT/EP2012/000356 WO2012110195A1 (fr) 2011-02-14 2012-01-26 Procédé de fabrication d'électrodes

Publications (1)

Publication Number Publication Date
EP2676314A1 true EP2676314A1 (fr) 2013-12-25

Family

ID=45833284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12708665.0A Withdrawn EP2676314A1 (fr) 2011-02-14 2012-01-26 Procédé de fabrication d'électrodes

Country Status (7)

Country Link
US (1) US20140059846A1 (fr)
EP (1) EP2676314A1 (fr)
JP (1) JP2014505342A (fr)
KR (1) KR20140020263A (fr)
CN (1) CN103403923A (fr)
DE (1) DE102011011156A1 (fr)
WO (1) WO2012110195A1 (fr)

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WO2014164005A1 (fr) * 2013-03-11 2014-10-09 Applied Materials, Inc. Régulation de rugosité de surface d'électrode pour traitement de revêtement par pulvérisation pour batterie au lithium-ion
DE102013219604A1 (de) * 2013-09-27 2015-04-02 Robert Bosch Gmbh Elektrodenherstellung mit NMP unter Inertgasatmosphäre
US10665852B2 (en) 2015-06-30 2020-05-26 GM Global Technology Operations LLC Method for reducing residual water content in battery material
US11539053B2 (en) 2018-11-12 2022-12-27 Utility Global, Inc. Method of making copper electrode
US11761100B2 (en) 2018-11-06 2023-09-19 Utility Global, Inc. Electrochemical device and method of making
US11557784B2 (en) 2018-11-06 2023-01-17 Utility Global, Inc. Method of making a fuel cell and treating a component thereof
US11611097B2 (en) 2018-11-06 2023-03-21 Utility Global, Inc. Method of making an electrochemical reactor via sintering inorganic dry particles
US11603324B2 (en) 2018-11-06 2023-03-14 Utility Global, Inc. Channeled electrodes and method of making
WO2020102634A1 (fr) * 2018-11-17 2020-05-22 Utility Global, Inc. Procédé de fabrication de réacteurs électrochimiques
CN115692615B (zh) * 2021-07-30 2024-09-27 华中科技大学 一种基于水系粘结剂的低迂曲度厚电极、其制备和应用

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JP3717085B2 (ja) * 1994-10-21 2005-11-16 キヤノン株式会社 二次電池用負極、該負極を有する二次電池及び電極の作製方法
JP2004303610A (ja) * 2003-03-31 2004-10-28 Yuasa Corp 直接メタノール形燃料電池とその製造方法
EP2006942A4 (fr) 2006-03-02 2013-07-24 Nat University Iwate Univ Inc Accumulateur, procede pour le fabriquer et systeme l'utilisant
KR101430617B1 (ko) * 2008-02-26 2014-08-18 삼성에스디아이 주식회사 니오븀 산화물 함유 전극 및 이를 채용한 리튬 전지
US8147916B2 (en) * 2008-03-07 2012-04-03 Bathium Canada Inc. Process for making electrodes for lithium based electrochemical cells
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Also Published As

Publication number Publication date
DE102011011156A1 (de) 2012-08-16
KR20140020263A (ko) 2014-02-18
WO2012110195A1 (fr) 2012-08-23
JP2014505342A (ja) 2014-02-27
CN103403923A (zh) 2013-11-20
US20140059846A1 (en) 2014-03-06

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