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1. WO2020196111 - SLURRY COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY NEGATIVE ELECTRODES, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY

Publication Number WO/2020/196111
Publication Date 01.10.2020
International Application No. PCT/JP2020/011805
International Filing Date 17.03.2020
IPC
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 4/139 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 4/1393 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
1393of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/36 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
36Selection of substances as active materials, active masses, active liquids
H01M 4/48 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
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
H01M 4/587 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
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
587for inserting or intercalating light metals
Applicants
  • 日本ゼオン株式会社 ZEON CORPORATION [JP]/[JP]
Inventors
  • 山本 徳一 YAMAMOTO Norikazu
  • 似鳥 広幸 NITADORI Hiroyuki
Agents
  • 杉村 憲司 SUGIMURA Kenji
Priority Data
2019-06440028.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SLURRY COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY NEGATIVE ELECTRODES, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY
(FR) COMPOSITION DE SUSPENSION DESTINÉE À DES ÉLECTRODES NÉGATIVES DE BATTERIE RECHARGEABLE NON AQUEUSE, ÉLECTRODE NÉGATIVE DESTINÉE À DES BATTERIES RECHARGEABLES NON AQUEUSES ET BATTERIE RECHARGEABLE NON AQUEUSE
(JA) 非水系二次電池負極用スラリー組成物、非水系二次電池用負極および非水系二次電池
Abstract
(EN)
The purpose of the present invention is to provide a slurry composition for nonaqueous secondary battery negative electrodes with which it is possible to form a negative electrode with which the swelling of a secondary battery can be suppressed. This slurry composition for nonaqueous secondary battery negative electrodes contains a negative electrode active material, a particulate polymer, and water, the slurry composition for nonaqueous secondary battery negative electrodes being characterized in that the negative electrode active material includes a negative electrode active material (A) and a negative electrode active material (B), the negative electrode active material (A) being a carbon particle the orientation ratio of which is 7.5 to 9.5, the negative electrode active material (B) being a composite particle which has a silicon oxide particle and a conductive carbon film covering at least a portion of the surface of the silicon oxide particle, the silicon oxide particle containing a silicon oxide represented by SiO2 (0.5 ≦ x < 1.6), and the particulate polymer containing 10-70 mass% inclusive of an ethylenically unsaturated carboxylic acid monomer unit.
(FR)
Le but de la présente invention concerne une composition de suspension pour des électrodes négatives de batterie rechargeable non aqueuse qui permet de former une électrode négative permettant de supprimer le gonflement d'une batterie rechargeable. Cette composition de suspension pour électrodes négatives de batterie rechargeable non aqueuse contient un matériau actif d'électrode négative, un polymère particulaire et de l'eau, la composition de suspension pour électrodes négatives de batterie rechargeable non aqueuse étant caractérisée en ce que le matériau actif d'électrode négative comprend un matériau actif d'électrode négative (A) et un matériau actif d'électrode négative (B), le matériau actif d'électrode négative (A) étant une particule de carbone dont le rapport d'orientation est de 7,5 à 9,5, le matériau actif d'électrode négative (B) étant une particule composite qui présente une particule d'oxyde de silicium et un film de carbone conducteur recouvrant au moins une partie de la surface de la particule d'oxyde de silicium, la particule d'oxyde de silicium contenant un oxyde de silicium représenté par SiO2 (0,5 ≦ x < 1,6) et le polymère particulaire contenant 10-70 % en masse, valeurs extrêmes incluses, d'un motif monomère d'acide carboxylique éthyléniquement insaturé.
(JA)
本発明は、二次電池の膨らみを抑制し得る負極を形成可能な非水系二次電池負極用スラリー組成物を提供することを目的とする。本発明の非水系二次電池負極用スラリー組成物は、負極活物質、粒子状重合体および水を含む非水系二次電池負極用スラリー組成物であって、前記負極活物質は、負極活物質(A)および負極活物質(B)を含み、前記負極活物質(A)は、配向比が7.5以上9.5以下である黒鉛粒子であり、前記負極活物質(B)は、ケイ素酸化物粒子と、前記ケイ素酸化物粒子の表面の少なくとも一部を覆う導電性炭素膜とを有する複合粒子であり、前記ケイ素酸化物粒子は、SiOx(0.5≦x<1.6)で表わされるケイ素酸化物を含有し、前記粒子状重合体は、エチレン性不飽和カルボン酸単量体単位を10質量%以上70質量%以下含有することを特徴とする。
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