Processing

Please wait...

Settings

Settings

Goto Application

1. WO2014115538 - POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, MANUFACTURING METHOD FOR SAME, AND LITHIUM ION SECONDARY BATTERY

Publication Number WO/2014/115538
Publication Date 31.07.2014
International Application No. PCT/JP2014/000280
International Filing Date 21.01.2014
IPC
H01M 4/131 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
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 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
1391of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 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
36Selection of substances as active materials, active masses, active liquids
H01M 10/0568 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0568characterised by the solutes
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0568
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0568characterised by the solutes
H01M 10/4235
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
4235Safety or regulating additives or arrangements in electrodes, separators or electrolyte
H01M 2004/021
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
021Physical characteristics, e.g. porosity, surface area
H01M 2004/028
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
026characterised by the polarity
028Positive electrodes
H01M 2300/0017
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0017Non-aqueous electrolytes
Applicants
  • 株式会社豊田自動織機 KABUSHIKI KAISHA TOYOTA JIDOSHOKKI [JP]/[JP]
Inventors
  • 大島 弘樹 OSHIMA, Hiroki
  • 牧 剛志 MAKI, Takeshi
Agents
  • 特許業務法人 共立 KYORITSU INTERNATIONAL
Priority Data
2013-00997123.01.2013JP
2013-06250625.03.2013JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, MANUFACTURING METHOD FOR SAME, AND LITHIUM ION SECONDARY BATTERY
(FR) ÉLECTRODE POSITIVE POUR BATTERIE SECONDAIRE AU LITHIUM-ION, PROCÉDÉ DE FABRICATION DE CELLE-CI ET BATTERIE SECONDAIRE AU LITHIUM-ION
(JA) リチウムイオン二次電池用正極とその製造方法及びリチウムイオン二次電池
Abstract
(EN)  This positive electrode active material layer comprises: positive electrode active particles comprising a solid solution or a Li compound selected from LixNiaCobMncO2, LixCobMncO2, LixNiaMncO2, LixNiaCobO2 and Li2MnO3 (wherein 0.5≤x≤1.5, 0.1≤a<1, 0.1≤b<1, 0.1≤c<1); a binding section that binds the positive electrode active particles to each other and also binds the positive electrode active particles to a collector; and an organic-inorganic coating layer that coats at least a part of the surfaces of the positive electrode active particles. Due to the high strength of the join between the organic-inorganic coating layer and the lithium compound, direct contact between the positive electrode active particles and an electrolyte during high-voltage drive is inhibited.
(FR)  L'invention concerne une couche de matériau actif pour électrode positive comprenant : des particules actives d'électrode positive comprenant une solution solide d'un composé de Li choisi parmi LixNiaCobMncO2, LixCobMncO2, LixNiaMncO2, LixNiaCobO2 et Li2MnO3 (avec 0,5≤x≤1,5, 0,1≤a<1, 0,1≤b<1, 0,1≤c<1); une section de liaison qui lie les particules actives d'électrode positive les unes avec les autres et lie également les particules actives d'électrode positive à un collecteur; et une couche de revêtement organique-inorganique qui recouvre au moins une partie des surfaces des particules actives d'électrode positive. La grande résistance de la jonction entre la couche de revêtement organique-inorganique et le composé de lithium permet d'empêcher un contact direct entre les particules actives d'électrode positive et un électrolyte pendant l'excitation à haute tension.
(JA)  LiNiCoMnO、LiCoMnO、LiNiMnO、LiNiCoO及びLiMnO(但し0.5≦x≦1.5、0.1≦a<1、0.1≦b<1、0.1≦c<1)から選ばれるLi化合物又は固溶体を含む正極活物質粒子と、正極活物質粒子どうしを結着するとともに正極活物質粒子と集電体とを結着する結着部と、正極活物質粒子の少なくとも一部表面を被覆する有機無機コート層と、から正極活物質層を形成した。有機無機コート層はLi化合物との接合強度が高いため、高電圧駆動時に正極活物質粒子と電解液との直接接触を抑制することができる。
Related patent documents
DE1120140005347This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
Latest bibliographic data on file with the International Bureau