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1. WO2021040044 - ALL-SOLID-STATE BATTERY

Publication Number WO/2021/040044
Publication Date 04.03.2021
International Application No. PCT/JP2020/032856
International Filing Date 31.08.2020
IPC
H01M 10/0562 2010.01
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
0561the electrolyte being constituted of inorganic materials only
0562Solid materials
H01M 10/0585 2010.01
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
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/10 2021.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
10Primary casings, jackets or wrappings of a single cell or a single battery
CPC
H01M 10/0562
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
0561the electrolyte being constituted of inorganic materials only
0562Solid materials
H01M 10/0585
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
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
10Primary casings, jackets or wrappings of a single cell or a single battery
Applicants
  • マクセルホールディングス株式会社 MAXELL HOLDINGS, LTD. [JP]/[JP]
Inventors
  • 川端 雄介 KAWABATA, Yusuke
  • 藤本 晃広 FUJIMOTO, Akihiro
  • 大塚 拓海 OTSUKA, Takumi
Agents
  • 上羽 秀敏 UEBA, Hidetoshi
  • 田中 憲治 TANAKA, Kenji
Priority Data
2019-15663329.08.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ALL-SOLID-STATE BATTERY
(FR) BATTERIE TOUT SOLIDE
(JA) 全固体電池
Abstract
(EN)
Provided is an all-solid-state battery capable of sufficiently caulking an outer can and a sealing can without causing a caulking defect and preventing the intrusion of moisture from the outside. The all-solid-state battery 1 comprises an outer can 2, a sealing can 3 facing the outer can 2, and a power generation element 4 accommodated between the outer can 2 and the sealing can 3. In the sealing can 3, a flat surface part 31 and a peripheral wall part 32 are continuously formed with a curved surface part 33 therebetween. A gap g1 of 2.0 mm or less is formed at a position where the radial width is the maximum between an upper end of the outer peripheral surface of the power generation element 4 and a boundary 10 between the inner surface of the flat surface part 31 and the inner surface of the curved surface part 33. Accordingly, the power generation element 4 is easily positioned and is appropriately disposed inside the sealing can 3, and the positional deviation of the power generation element 4 is suppressed.
(FR)
L'invention concerne une batterie tout solide qui permet de calfeutrer suffisamment un bac externe et un bac d'étanchéité sans provoquer de défaut de calfeutrage et d'empêcher l'intrusion de l'humidité provenant de l'extérieur. La batterie tout solide 1 comprend un bac externe 2, un bac d'étanchéité 3 qui fait face au bac externe 2, et un élément de production d'énergie 4 logé entre le bac externe 2 et l'élément d'étanchéité 3. Dans le bac d'étanchéité 3, une partie de surface plate 31 et une partie de paroi périphérique 32 sont formées en continu avec une partie de surface incurvée 33 entre celles-ci. Un espace g1 de 2,0 mm ou moins est formé à une position où la largeur radiale est maximale entre une extrémité supérieure de la surface périphérique externe de l'élément de production d'énergie 4 et une limite 10 entre la surface interne de la partie de surface plate 31 et la surface interne de la partie de surface incurvée 33. Par conséquent, l'élément de production d'énergie 4 est facilement positionné et est disposé de manière appropriée à l'intérieur du bac d'étanchéité 3, et la variation de position de l'élément de production d'énergie 4 est éliminée.
(JA)
カシメ不良を生じさせることなく外装缶と封口缶とを充分にカシメることができ、外部からの水分の侵入を防止することができる全固体電池を提供する。全固体電池1は、外装缶2と、外装缶2に対向する封口缶3と、外装缶2と封口缶3との間に収容される発電要素4とを備える。封口缶3は、平面部31と周壁部32とが曲面部33を介して連続して形成されている。発電要素4の外周面の上端と平面部31の内面及び曲面部33の内面の境界10との間に、径方向の幅が最大となる位置において2.0mm以下の隙間g1が形成されている。これにより、発電要素4を容易に位置決めして封口缶3の内部に適切に配置し、発電要素4の位置ズレを抑制する。
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