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1. WO2022070736 - CONDUCTIVE MATERIAL DISPERSION LIQUID, METHOD FOR PRODUCING SLURRY FOR NONAQUEOUS SECONDARY BATTERY POSITIVE ELECTRODES, METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND METHOD FOR PRODUCING NONAQUEOUS SECONDARY BATTERY

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Publication Number WO/2022/070736
Publication Date 07.04.2022
International Application No. PCT/JP2021/032004
International Filing Date 31.08.2021
IPC
H01M 4/13 2010.1
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 4/139 2010.1
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 2006.1
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
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 4/139
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
Applicants
  • 日本ゼオン株式会社 ZEON CORPORATION [JP]/[JP]
Inventors
  • 浅野　順一 ASANO Junichi
Agents
  • 杉村　憲司 SUGIMURA Kenji
Priority Data
2020-16413729.09.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CONDUCTIVE MATERIAL DISPERSION LIQUID, METHOD FOR PRODUCING SLURRY FOR NONAQUEOUS SECONDARY BATTERY POSITIVE ELECTRODES, METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND METHOD FOR PRODUCING NONAQUEOUS SECONDARY BATTERY
(FR) LIQUIDE DE DISPERSION DE MATÉRIAU CONDUCTEUR, PROCÉDÉ DE PRODUCTION DE BOUILLIE POUR ÉLECTRODES POSITIVES DE BATTERIE SECONDAIRE NON AQUEUSE, PROCÉDÉ DE PRODUCTION D'ÉLECTRODE POSITIVE POUR BATTERIES SECONDAIRES NON AQUEUSES ET PROCÉDÉ DE PRODUCTION DE BATTERIE SECONDAIRE NON AQUEUSE
(JA) 導電材分散液、非水系二次電池正極用スラリーの製造方法、非水系二次電池用正極の製造方法、及び、非水系二次電池の製造方法
Abstract
(EN) The present invention provides a technology which enables a secondary battery to exhibit excellent output characteristics and other characteristics. According to the present invention, a conductive material dispersion liquid that contains a conductive material, a dispersant and a solvent is used during the production of a secondary battery. The conductive material is composed of carbon nanotubes that have a specific surface area of from 800 m2/g to 1,300 m2/g; the volume average particle diameter (D90) of the carbon nanotubes in the conductive material dispersion liquid is 50 μm or less; and the dispersant is composed of a hydrogenated acrylonitrile-butadiene copolymer that has a weight average molecular weight of 200,000 or less.
(FR) La présente invention concerne une technologie qui permet à une batterie secondaire d'avoir d'excellentes caractéristiques de sortie et d'autres caractéristiques. Selon la présente invention, un liquide de dispersion de matériau conducteur qui contient un matériau conducteur, un dispersant et un solvant est utilisé pendant la production d'une batterie secondaire. Le matériau conducteur est composé de nanotubes de carbone qui ont une surface spécifique de 800 m2/g à 1300 m2/g ; le diamètre de particule moyen en volume (D90) des nanotubes de carbone dans le liquide de dispersion de matériau conducteur est inférieur ou égal à 50 µm ; et le dispersant est composé d'un copolymère d'acrylonitrile-butadiène hydrogéné qui a un poids moléculaire moyen en poids inférieur ou égal à 200000.
(JA) 二次電池に優れた出力特性及び特性を発揮させ得る技術を提供する。二次電池を製造するにあたり、導電材と、分散剤と、溶剤とを含む導電材分散液を使用する。導電材は比表面積が８００ｍ２／ｇ以上１３００ｍ２／ｇ以下のカーボンナノチューブであり、導電材分散液中のカーボンナノチューブの体積平均粒子径（Ｄ９０）は５０μｍ以下であり、分散剤は重量平均分子量が２０００００以下水素化アクリロニトリル－ブタジエン共重合体である。
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