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1. WO2020066917 - COMPOSITION FOR SECONDARY BATTERY ELECTRODE

Publication Number WO/2020/066917
Publication Date 02.04.2020
International Application No. PCT/JP2019/037038
International Filing Date 20.09.2019
IPC
H01M 4/04 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
04Processes of manufacture in general
C08L 27/16 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
12containing fluorine atoms
16Homopolymers or copolymers of vinylidene fluoride
C08L 29/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
29Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
14Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01M 4/139 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
139Processes of manufacture
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
H01M 4/86 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
CPC
C08L 27/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
12containing fluorine atoms
16Homopolymers or copolymers or vinylidene fluoride
C08L 29/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
29Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
14Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
H01M 4/04
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
04Processes of manufacture in general
H01M 4/139
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
139Processes of manufacture
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
H01M 4/86
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
Applicants
  • 積水化学工業株式会社 SEKISUI CHEMICAL CO., LTD. [JP]/[JP]
Inventors
  • 浅羽 祐太郎 ASABA, Yutaro
Agents
  • 特許業務法人 安富国際特許事務所 YASUTOMI & ASSOCIATES
Priority Data
2018-18563928.09.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COMPOSITION FOR SECONDARY BATTERY ELECTRODE
(FR) COMPOSITION POUR ÉLECTRODE DE BATTERIE SECONDAIRE
(JA) 二次電池電極用組成物
Abstract
(EN)
The present invention provides: a secondary battery electrode composition in which an active material has excellent dispersibility and adhesion properties, and with which it is possible to prevent moisture-induced deterioration and malfunction of a battery and to manufacture a high-capacity secondary battery; and a secondary battery using said secondary battery electrode composition. The secondary battery electrode composition according to the present invention comprises an active material, a binder, and an aqueous solvent. The binder comprises a polyvinyl acetal resin. The polyvinyl acetal resin contains a constituent unit having an alkylene oxide group in an amount of 0.01-14 mol%, has a hydroxyl group content of 68-97 mol%, and has a degree of polymerization of 220-5500.
(FR)
La présente invention concerne : une composition d'électrode de batterie secondaire dans laquelle un matériau actif présente d'excellentes propriétés de dispersibilité et d'adhérence, et avec laquelle il est possible d'empêcher une détérioration et un dysfonctionnement induits par l'humidité d'une batterie et de fabriquer une batterie secondaire à capacité élevée ; et une batterie secondaire utilisant ladite composition d'électrode de batterie secondaire. La composition d'électrode de batterie secondaire selon la présente invention comprend un matériau actif, un liant et un solvant aqueux. Le liant comprend une résine d'acétal de polyvinyle. La résine d'acétal de polyvinyle contient une unité constitutive ayant un groupe oxyde d'alkylène en une quantité de 0,01 à 14 % en moles, a une teneur en groupes hydroxyle de 68 à 97 % en moles, et a un degré de polymérisation de 220 à 5500.
(JA)
本発明は、活物質の分散性、接着性に優れるとともに、水分による電池の劣化、故障を防ぐことができ、高容量の二次電池を作製することが可能な二次電池電極用組成物、及び、該二次電池電極用組成物を用いた二次電池を提供するものである。 本発明は、活物質、バインダー及び水系溶媒を含有する二次電池電極用組成物であって、前記バインダーは、ポリビニルアセタール樹脂を含有し、前記ポリビニルアセタール樹脂は、アルキレンオキサイド基を有する構成単位を含み、アルキレンオキサイド基を有する構成単位の含有量が0.01~14モル%、水酸基量が68~97モル%、重合度が220~5500である二次電池電極用組成物である。
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