US20130034651A1 - Aqueous Slurry For Battery Electrodes - Google Patents

Aqueous Slurry For Battery Electrodes Download PDF

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Publication number
US20130034651A1
US20130034651A1 US13/485,108 US201213485108A US2013034651A1 US 20130034651 A1 US20130034651 A1 US 20130034651A1 US 201213485108 A US201213485108 A US 201213485108A US 2013034651 A1 US2013034651 A1 US 2013034651A1
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US
United States
Prior art keywords
slurry
pvdf
aqueous solution
paa
cmc
Prior art date
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Abandoned
Application number
US13/485,108
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English (en)
Inventor
Hilmi Buqa
Werner Scheifele
Pierre Blanc
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Leclanche SA
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Leclanche SA
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Filing date
Publication date
Application filed by Leclanche SA filed Critical Leclanche SA
Assigned to LECLANCHE' SA reassignment LECLANCHE' SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Scheifele, Werner, BLANC, PIERRE, BUQA, HILMI, DR.
Publication of US20130034651A1 publication Critical patent/US20130034651A1/en
Priority to US14/864,105 priority Critical patent/US20160013492A1/en
Priority to US16/532,883 priority patent/US11283078B2/en
Abandoned legal-status Critical Current

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    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H01M4/623—Binders being polymers fluorinated polymers
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • 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
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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

Definitions

  • the present invention relates to electrodes for secondary batteries.
  • the present disclosure relates to slurries or pastes for the use in lithium ion containing electrochemical cells.
  • Electrodes for electrochemical cells are often manufactured by attaching an electrochemically active electrode material to a current collector.
  • Known current collectors are rigid supports or flexible foils made from a conducting material. Examples for widely used current collector materials include copper or aluminium but other materials may be used.
  • Methods to attach the electrochemical active electrode material to the current collector comprise lamination, gluing using adhesives or coating. These methods for manufacturing electrodes are widely used in the art.
  • electrochemically activatable or active electrode materials for manufacturing anodes and cathodes in different battery systems and depending on the application of the battery.
  • the electrochemical active electrode material is manufactured as a slurry or paste and subsequently coated onto the current collector or the slurry is manufactured as a self-supporting layer which is later attached to the current collector.
  • the slurry or paste usually comprises a mixture of an electrochemically activatable or active material and a binder material for forming the paste/slurry. Further components are often added, such as conductive additives (i.e. carbon black, graphite, carbon fibers, VGCF (vapour grown carbon fibers), etc.)
  • conductive additives i.e. carbon black, graphite, carbon fibers, VGCF (vapour grown carbon fibers), etc.
  • PVDF Polyvinylidene fluoride
  • PVDF-HFP polyvinyliden fluoride hexafluoropropylene copolymers
  • PVDF provides a good electrochemical stability and high adhesion to the electrode materials and to current collectors.
  • PVDF is therefore a preferred binder material for electrode slurries.
  • PVDF has the disadvantage that it can only be dissolved in some specific organic solvent such as acetone has to be used which requires specific handling, production standards and recycling of the organic solvents in an environmentally-friendly way.
  • PVDF is also known for some long term instability in the cell chemistry.
  • aqueous solutions instead of organic solvents is preferred for environmental and handling reasons and water-based slurries have been considered.
  • Possible binders for water-based slurries known in the art comprise carboxymethyl cellulose (CMC) and styrene-butadiene rubber (SBR).
  • CMC carboxymethyl cellulose
  • SBR styrene-butadiene rubber
  • EP 0 907 214 corresponding to US 6,183,907, compares acrylonitrile-butadiene rubber combined with CMC, combinations of CMC and SBR as binder in an aqueous solution to polyvinylidene fluoride in an organic solvent.
  • JP 2000 357505A describes the use of PVDF in an aqueous dispersion acting as binder material.
  • the organic solvent in N-methyl-2-pyrrolidone (NMP) is added to the solution.
  • JP 2008 135334 suggests to use a polymeric layer made from PVDF onto which a slurry comprising CMC and SBR as binder materials is coated.
  • the present disclosure provides a composition for a slurry or a slurry for the manufacture of an electrode for an electrochemical cell.
  • the electrochemical cell can be an lithium ion cell and can be a primary or a secondary battery.
  • the slurry comprises a combination of at least three of polyacrylic acid (PAA), carboxymethyl cellulose (CMC), styrene butadiene rubber (SBR) and polyvinylidene fluoride (PVDF) in an aqueous solution.
  • the slurry further comprises an electrochemical active or activatable compound. In this way, PVDF can be used in a water-based slurry, which allows for easier handling and less environmental pollution and reduced costs while keeping the chemical and electrochemical advantages of PVDF, i.e.
  • the combination of PVDF with SBR and CMC or PAA has also good adhesive properties allowing lamination and/or coating of the slurry without the use of additional adhesives.
  • the combination consisting of PVDF with CMC and SBR in an aqueous solution can be used as binder in a positive or negative electrode slurry, wherein the CMC and SBR are used as binder and PVDF is used as lamination agent.
  • CMC or SBR may be replaced by PAA as binder material.
  • PAA may be used to reduce the PH of the slurry which helps to avoid or suppress corrosion.
  • a combination of PVDF with SBR, CMC and PAA may also be used in an aqueous solution combining the advantages of CMC and PAA.
  • a latex may be dispersed in this aqueous solution to stabilise the PVDF in the aqueous solution.
  • Using a PVDF-latex dispersion makes it possible to use PVDF in aqueous solutions, keeping the advantages of PVDF as lamination agent and in the same time avoiding the use of organic solvents.
  • the aqueous solution is de-ionized water.
  • a concentration of about 0.5% to about 10% by weight of each one of the CMC, SBR and the PVDF may be used for a stable slurry with good chemical and electrical properties.
  • composition of the slurry does not require organic solvents, but such solvents could be used without changing the spirit of the patent.
  • the slurries may be free of any organic solvent and the expensive and restrictive and complicated handling of organic solvents is avoided or reduced during the manufacture of the slurry.
  • the slurry or the manufactured electrode may therefore be dried.
  • the electrochemically activatable material may comprise at least one of graphite, titanate, lithium metal oxides such as LMO (lithium manganese oxide), Li-NCA (lithium nickel cobalt aluminium oxide), LCO (lithium cobalt oxide), LNCM (lithium nickel cobalt manganese oxide), LFP (lithium iron phosphate) and other metal oxides or other materials known in the art, as well as their blends.
  • LMO lithium manganese oxide
  • Li-NCA lithium nickel cobalt aluminium oxide
  • LCO lithium cobalt oxide
  • LNCM lithium nickel cobalt manganese oxide
  • LFP lithium iron phosphate
  • the slurry may be used for a positive electrode and/or for a negative electrode.
  • the present disclosure also relates to a method or the manufacture of an electrode for an electrochemical cell.
  • the method comprises preparing a slurry comprising a combination of at least three of the PAA CMC, SBR and PVDF in an aqueous solution, coating or laminating the slurry on a current collector, and drying the slurry. Latex may be added to the aqueous solution to stabilise the slurry.
  • Latex may be used in a dispersion with the PVDF in the aqueous solution.
  • the aqueous solution may further comprise at least two of the PAA; CMC, SBR may be added to the dispersion
  • the method may further comprise adding a non-aqueous electrolyte to the electrode.
  • the method and the slurry have the advantage that only aqueous solutions are used that can be easily handled and a less cost-intensive use.
  • FIG. 1 shows cycle life characteristics for electrochemical cells containing Li—NCO cathodes and graphite anode prepared with water based binder mixture
  • FIG. 2 shows a discharge rate capability behaviour of the Li—NCO/Graphite electrochemical cell of FIG. 1 .
  • An electrochemical cell according to the present disclosure can be prepared by standard methods known to a person skilled in the art. It is common knowledge to a person skilled in the art to use slurries for manufacturing positive or negative electrodes i.e. cathodes or anodes.
  • the slurry may be coated onto a current collector.
  • the current collector can be a metal foil and can comprise materials such as copper or aluminium but other current collectors can be used with the present invention.
  • a slurry according to the present disclosure is prepared by mixing a binder with an active electrode material in an aqueous solution. Further components may be added.
  • the binder comprises a composition of carboxymethyl cellulose (CMC), styrene butadiene rubber (SBR) as binder and polyvinylidene fluoride (PVDF) as lamination agent. No other binder materials are used.
  • CMC carboxymethyl cellulose
  • SBR styrene butadiene rubber
  • PVDF polyvinylidene fluoride
  • No other binder materials are used.
  • polyacrylic acid (PAA) may be used to reduce the PH of the slurry.
  • the total amount of binder in the slurry can be about 0.5% to about 30% by weight. Good results have been obtained with a total amount of binder in the slurry of about 10% by weight.
  • the binder can be mixed in an aqueous solution made from de-ionized water. Latex at a concentration of about 0.5-10% may be added to stabilize the aqueous PVDF dispersion.
  • the slurry comprises an active electrode material and other components such as carbon black and optionally further additives.
  • Example for anode active electrode material may be graphite.
  • Examples for a cathode active electrode material comprises LFP, LNCM, LCO, Li—NCA, LMO or other metal oxides and their blends.
  • a graphite electrode slurry may comprise 2% CMC or PAA, 5% SBR, 3% PVDF, 2% carbon black and 88% graphite.
  • the above components may be mixed to a slurry in an aqueous solution.
  • the aqueous solution may be deionised water.
  • Latex may be added to the solution in order to maintain the PVDF in a stable dispersion.
  • the materials used are commercially available. No other materials are used. The water contents depends on active materials, binder and other conductive materials and their concentration used in the slurry.
  • a cathode electrode slurry may be mixed by using 4% CMC or PAA, 6% SBR, 3% PVDF, 6% carbon black and 88% by weight of LFP or another metal oxide. Latex may be added to the solution in order to maintain the PVDF in a stable dispersion.
  • the Li—NCO presented in this draft is prepared using PVDF as Binder and acetone as a solvent. Nevertheless, the Li—NCO electrodes can be prepeared using: NMP, water, acetone, DMAC or other organic solvents.
  • the above slurries have been coated on an anode current collector and onto a cathode count collector, respectively.
  • the current collector can be made from any known material such as for example aluminium or copper and can be in form of a foil.
  • the cathode and the anode produced in this way were inserted in an electrochemical cell, separated by a separator.
  • Electrochemical cells produced in such a manner have been tested for their cycle life characteristics and for their discharge rate capability behaviour depending on the temperature.
  • FIG. 1 shows cycle life characteristics for electrochemical cells containing Li—NCO cathodes and graphite anodes prepared with a water based binder mixture.
  • the slurry is prepared using PVDF as a binder and acetone as a solvent.
  • the capacity retention in constant over at least two hundred charging and recharging cycles indicating a good cycle life of electrochemical cells based on water based slurries.
  • FIG. 2 shows a discharge rate capability behaviour of Li—NCO/graphite cells.
  • the graphite electrodes were prepared with the water based binder mixture of example 1. The results indicate that there are no differences in using water based slurries compared to slurries based on organic solvents or other slurries. The use of the water based slurries therefore allows to reduce or avoid the use of organic solvents in the slurries facilitating the manufacture of the slurries.
  • organic solvent free slurries can be prepared. However, a certain concentration of organic solvents can be used in some applications of the present disclosure. The organic solvent is, however, not necessary for dissolving the binder material and the binder can be used in the aqueous solution.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
US13/485,108 2011-08-03 2012-05-31 Aqueous Slurry For Battery Electrodes Abandoned US20130034651A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/864,105 US20160013492A1 (en) 2011-08-03 2015-09-24 Aqueous Slurry For Battery Electrodes
US16/532,883 US11283078B2 (en) 2011-08-03 2019-08-06 Aqueous slurry for battery electrodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1113378.2 2011-08-03
GB1113378.2A GB2493375A (en) 2011-08-03 2011-08-03 Aqueous slurry for battery electrodes

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US14/864,105 Continuation US20160013492A1 (en) 2011-08-03 2015-09-24 Aqueous Slurry For Battery Electrodes

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US14/864,105 Abandoned US20160013492A1 (en) 2011-08-03 2015-09-24 Aqueous Slurry For Battery Electrodes
US16/532,883 Active US11283078B2 (en) 2011-08-03 2019-08-06 Aqueous slurry for battery electrodes

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US14/864,105 Abandoned US20160013492A1 (en) 2011-08-03 2015-09-24 Aqueous Slurry For Battery Electrodes
US16/532,883 Active US11283078B2 (en) 2011-08-03 2019-08-06 Aqueous slurry for battery electrodes

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US (3) US20130034651A1 (enExample)
EP (1) EP2555293B1 (enExample)
JP (3) JP2013038074A (enExample)
KR (1) KR101761803B1 (enExample)
CN (1) CN102916190B (enExample)
AR (1) AR086748A1 (enExample)
BR (1) BR102012015829A2 (enExample)
CA (1) CA2778626C (enExample)
DK (1) DK2555293T3 (enExample)
EA (1) EA023721B1 (enExample)
ES (1) ES2481917T3 (enExample)
GB (1) GB2493375A (enExample)
HR (1) HRP20140572T1 (enExample)
SI (1) SI2555293T1 (enExample)
TW (1) TWI621301B (enExample)

Cited By (15)

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CN103280566A (zh) * 2013-05-31 2013-09-04 广东凯德能源科技有限公司 一种锂离子电池正负极浆料的制备方法
US20150030923A1 (en) * 2012-02-16 2015-01-29 Lg Chem, Ltd. Lithium secondary battery having anode containing aqueous binder
US20150280239A1 (en) * 2014-04-01 2015-10-01 Ppg Industries Ohio, Inc. Aqueous binder composition for lithium ion electrical storage devices
US9431659B2 (en) 2013-07-26 2016-08-30 Lg Chem, Ltd. Electrode binder for secondary battery and electrode for secondary battery comprising the same
US20170098854A1 (en) * 2015-10-05 2017-04-06 Toyota Jidosha Kabushiki Kaisha Method of manufacturing nonaqueous electrolyte secondary battery
WO2017059117A1 (en) * 2015-09-29 2017-04-06 A123 Systems, LLC High capacity anode electrodes with mixed binders for energy storage devices
WO2017124859A1 (en) 2016-01-18 2017-07-27 Grst International Limited Method of preparing battery electrodes
US20180013181A1 (en) * 2016-07-07 2018-01-11 Grst International Limited Method for recycling lithium-ion battery
WO2018017944A1 (en) * 2016-07-22 2018-01-25 Celgard, Llc Improved coatings, coated separators, batteries, and related methods
US10014505B2 (en) 2014-11-21 2018-07-03 Samsung Sdi Co., Ltd. Separator having high heat resistance, manufacturing method thereof and secondary battery including the separator
US20190157679A1 (en) * 2016-06-30 2019-05-23 HYDRO-QUéBEC Electrode materials and processes for their preparation
CN112952061A (zh) * 2021-03-01 2021-06-11 芜湖天弋能源科技有限公司 一种磷酸铁锂水性正极浆料及其制备方法、环保长循环型锂离子电池
US11374223B2 (en) 2017-06-30 2022-06-28 Ppg Industries Ohio, Inc. Slurry composition including binder containing reaction product of epoxy functional polymer and acid functional polymer for lithium ion electrical storage devices
WO2022241066A1 (en) * 2021-05-14 2022-11-17 Arkema Inc. Water based binder composition and application thereof
US12406994B2 (en) 2014-04-01 2025-09-02 Ppg Industries Ohio, Inc. Electrode binder composition for lithium ion electrical storage devices

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CA2912212C (en) * 2013-05-23 2019-09-24 Hercules Incorporated Binder composition for an electrode and methods for producing the same
KR20140147052A (ko) * 2013-06-18 2014-12-29 주식회사 엘지화학 애노드용 바인더 용액, 그를 포함하는 애노드용 활물질 슬러리, 그 활물질 슬러리를 이용한 애노드 및 이를 포함하는 전기화학소자
KR101593314B1 (ko) * 2013-07-26 2016-02-11 주식회사 엘지화학 이차전지용 전극 바인더 및 이를 포함하는 이차전지용 전극
DE102013111826A1 (de) * 2013-10-28 2015-04-30 Westfälische Wilhelms-Universität Münster Verfahren zur Herstellung einer Elektrode für eine Lithium-Ionen-Batterie
CN103943815A (zh) * 2014-03-24 2014-07-23 傅汝毅 锂离子电池正极涂布工艺
JP6181590B2 (ja) * 2014-04-02 2017-08-16 信越化学工業株式会社 非水電解質二次電池用負極及び非水電解質二次電池
US10644785B2 (en) * 2016-11-03 2020-05-05 Airbus Operations Gmbh Wireless distribution of aircraft data and/or avionics parameters and/or control commands between a standardized aircraft interface point and other systems, e.g., passenger entertainment systems
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