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1. WO2016039424 - NON-AQUEOUS ELECTROLYTE BATTERY

Publication Number WO/2016/039424
Publication Date 17.03.2016
International Application No. PCT/JP2015/075755
International Filing Date 10.09.2015
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 4/36 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 4/485 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
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
485of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 10/0525 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
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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 10/049
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
049Processes for forming or storing electrodes in the battery container
H01M 10/052
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
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 10/0566
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
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
Applicants
  • 株式会社 東芝 KABUSHIKI KAISHA TOSHIBA [JP]/[JP]
Inventors
  • 栗山 博道 KURIYAMA, Hiromichi
  • 猿渡 秀郷 SARUWATARI, Hidesato
  • 佐竹 秀喜 SATAKE, Hideki
  • 山本 大 YAMAMOTO, Dai
Agents
  • 蔵田 昌俊 KURATA, Masatoshi
Priority Data
2014-18452510.09.2014JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) NON-AQUEOUS ELECTROLYTE BATTERY
(FR) BATTERIE A ELECTROLYTE NON AQUEUX
(JA) 非水電解質電池
Abstract
(EN)
One embodiment of the present invention provides a non-aqueous electrolyte battery. This non-aqueous electrolyte battery comprises a negative electrode, a positive electrode, and a non-aqueous electrolyte. The negative electrode includes negative electrode active substance particles. The negative electrode active substance particles include a spinel lithium titanate. The negative electrode has a surface state whereby the ratio ALi/ATi, being the ratio between the Li atom abundance ratio ALi and the Ti atom abundance ratio ATi which are obtained by photoelectron spectroscopy on the surface, increases at a rate of 0.002-0.02 per cycle, in a charge-discharge cycle test in a 45°C environment. The Li atom abundance ratio ALi is calculated from a peak derived from the 1s orbit for Li that appears in the 52-58 eV bonding energy range. The Ti atom abundance ratio ATi is calculated from a peak derived from the 2p orbit for Ti that appears in the 455-462 eV bonding energy range.
(FR)
Un mode de réalisation de la présente invention concerne une batterie à électrolyte non aqueux. La batterie à électrolyte non aqueux comprend une électrode négative, une électrode positive et un électrolyte non aqueux. L'électrode négative comprend des particules de substance active d'électrode négative. Les particules de substance active d'électrode négative comprennent un titanate de lithium spinelle. L'électrode négative présente un état de surface tel que le rapport ALi/ATi, qui représente le rapport entre le rapport d'abondance d'atomes de Li ALi et le rapport d'abondance d'atomes de Ti ATi, obtenus par spectroscopie de photoélectrons sur la surface, augmente à un taux de 0,002 à 0,02 par cycle dans un test de cycle de charge-décharge dans un environnement à 45°C. Le rapport d'abondance d'atomes de Li ALi est calculé à partir d'un pic dérivé de l'orbite 1s de Li apparaissant dans la plage d'énergie de liaison de 52 à 58 eV. Le rapport d'abondance d'atomes de Ti ATi est calculé à partir d'un pic dérivé de l'orbite 2p associée à Ti, qui apparaît dans la plage d'énergie de liaison 455-462 eV.
(JA)
 1つの実施形態によると、非水電解質電池が提供される。この非水電解質電池は、負極と、正極と、非水電解質とを具備する。負極は、負極活物質粒子を含む。負極活物質粒子は、スピネル型チタン酸リチウムを含む。負極は、表面に対する光電子分光測定によって得られるLi原子存在比率ALiとTi原子存在比率ATiとの比ALi/ATiが、45℃環境下での充放電サイクル試験において、1サイクルあたり0.002以上0.02以下の速度で増加する表面状態を有する。Li原子存在比率ALiは、52eV~58eVの結合エネルギー領域に出現するLiの1s軌道に由来するピークから算出される。Ti原子存在比率ATiは、455eV~462eVの結合エネルギー領域に出現するTiの2p軌道に由来するピークから算出される。
Related patent documents
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