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1. WO2020110847 - BINDER FOR SECONDARY BATTERY ELECTRODE, COMPOSITION FOR SECONDARY BATTERY ELECTRODE MIXTURE LAYER, AND SECONDARY BATTERY ELECTRODE

Publication Number WO/2020/110847
Publication Date 04.06.2020
International Application No. PCT/JP2019/045360
International Filing Date 20.11.2019
IPC
C08F 220/06 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
04Acids; Metals salts or ammonium salts thereof
06Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
C08F 220/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
10Esters
C08F 220/56 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
52Amides or imides
54Amides
56Acrylamide; Methacrylamide
H01M 4/13 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H01M 4/62 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
CPC
C08F 220/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
04Acids; Metal salts or ammonium salts thereof
06Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
C08F 220/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
10Esters
C08F 220/56
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
52Amides or imides
54Amides ; , e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
56Acrylamide; Methacrylamide
H01M 4/13
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H01M 4/62
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Applicants
  • 東亞合成株式会社 TOAGOSEI CO., LTD. [JP]/[JP]
Inventors
  • 仲野 朋子 NAKANO Tomoko
  • 日笠山 綾乃 HIGASAYAMA Ayano
  • 斎藤 直彦 SAITO Naohiko
Priority Data
2018-22081027.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BINDER FOR SECONDARY BATTERY ELECTRODE, COMPOSITION FOR SECONDARY BATTERY ELECTRODE MIXTURE LAYER, AND SECONDARY BATTERY ELECTRODE
(FR) LIANT POUR ÉLECTRODE DE BATTERIE SECONDAIRE, COMPOSITION POUR COUCHE DE MÉLANGE D'ÉLECTRODE DE BATTERIE SECONDAIRE, ET ÉLECTRODE DE BATTERIE SECONDAIRE
(JA) 二次電池電極用バインダー、二次電池電極合剤層用組成物及び二次電池電極
Abstract
(EN)
The present invention provides a binder that is for a secondary battery electrode and that can exhibit excellent binding properties better than conventional products, and, even when the concentration of an active material in the electrode mixture layer is high, can reduce the viscosity of electrode slurry. This binder for a secondary battery electrode contains a crosslinked polymer or a salt thereof, wherein the crosslinked polymer or a salt thereof contains 50-99.5 mass% of a first structural unit derived from an ethylenically unsaturated carboxylic acid monomer, and 0.5-50 mass% of a second structural unit derived from a specific monomer having a hydroxy group, with respect to all structural units, and the particle size as measured in an aqueous medium after neutralization to a neutralization degree of 80-100 mol% is 0.1-10 μm in terms of volume-based median diameter.
(FR)
L'invention fournit un liant pour électrode de batterie secondaire qui permet de développer des capacités de liaison meilleures que dans l'art antérieur, et qui permet de réduire la viscosité d'une bouillie d'électrode. L'invention concerne un liant pour électrode de batterie secondaire comprenant un polymère réticulé ou un sel de celui-ci. Le liant pour électrode de batterie secondaire de l'invention est tel que ledit polymère réticulé ou le sel de celui-ci contient 50% en masse ou plus à 99,5% en masse ou moins d'une première unité structurale dérivée d'un monomère d'acide carboxylique éthyléniquement insaturé, et 0,5% en masse ou plus à 50% en masse ou moins d'une seconde unité structurale dérivée d'un monomère spécifique possédant un groupe hydroxyle, pour l'ensemble de ses unités structurales, et que le diamètre particulaire mesuré en milieu aqueux après neutralisation selon un degré de neutralisation compris entre 80 et 100% en moles, est supérieur ou égal à 0,1μm et inférieur ou égal à 10μm en termes de diamètre médian sur la base du volume.
(JA)
本発明は、従来よりも優れた結着性を発揮することができるとともに、電極合剤層中の活物質濃度が高い場合であっても、電極スラリー粘度の低減が可能な二次電池電極用バインダーを提供する。 架橋重合体又はその塩を含有する二次電池電極用バインダーであって、前記架橋重合体又はその塩は、その全構造単位に対し、エチレン性不飽和カルボン酸単量体に由来する第一の構造単位を50質量%以上99.5質量%以下、並びに、水酸基を有する特定の単量体に由来する第二の構造単位を0.5質量%以上50質量%以下含み、かつ、中和度80~100モル%に中和された後、水媒体中で測定した粒子径が、体積基準メジアン径で0.1μm以上10μm以下であるようにする。
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