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1. WO2020137716 - CYLINDRICAL BATTERY

Publication Number WO/2020/137716
Publication Date 02.07.2020
International Application No. PCT/JP2019/049495
International Filing Date 17.12.2019
IPC
H01M 10/0587 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
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 2/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
02Cases, jackets or wrappings
04Lids or covers
H01M 2/30 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
30Terminals
CPC
H01M 10/0587
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
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/147
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
147Lids or covers
H01M 50/543
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
50Current conducting connections for cells or batteries
543Terminals
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • 三洋電機株式会社 SANYO ELECTRIC CO., LTD. [JP]/[JP]
Inventors
  • 樫村 亮 KASHIMURA Ryo
Agents
  • 徳田 佳昭 TOKUDA Yoshiaki
  • 西田 浩希 NISHIDA Hiroki
Priority Data
2018-24639028.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CYLINDRICAL BATTERY
(FR) BATTERIE CYLINDRIQUE
(JA) 円筒形電池
Abstract
(EN)
The purpose of the present invention is to provide a cylindrical battery wherein a central part of a sealing plate which is fixed by swaging to an opening of an external packaging can is configured to be warped inward of the battery. The cylindrical battery according to one embodiment of the present invention is provided with: an electrode body in which a positive electrode plate and a negative electrode plate are rolled with a separator being disposed therebetween; an electrolytic solution; an external packaging can which has a bottomed cylindrical shape and which houses the electrode body and the electrolytic solution; and a sealing plate (22) which is fixed by swaging to an opening of the external packaging can with a gasket therebetween. As viewed in a planar view, the sealing plate (22) is formed to have a circular shape, and has a central part (22a) recessed inward of the battery. In the sealing plate (22), an outer circumferential edge (27) fixed by swaging to the external packaging can is configured to bifurcate into a first portion (27a) and a second portion (27b) in the thickness direction.
(FR)
L'objectif de la présente invention est de fournir une batterie cylindrique dans laquelle une partie centrale d'une plaque d'étanchéité qui est fixée par emboutissage à une ouverture d'un emballage externe peut être configurée pour être déformée vers l'intérieur de la batterie. La batterie cylindrique selon un mode de réalisation de la présente invention comprend : un corps d'électrode dans lequel une plaque d'électrode positive et une plaque d'électrode négative sont enroulées avec un séparateur disposé entre celles-ci ; une solution électrolytique ; un emballage externe qui a une forme cylindrique à fond et qui loge le corps d'électrode et la solution électrolytique ; et une plaque d'étanchéité (22) qui est fixée par emboutissage à une ouverture de l'emballage externe peut être dotée d'un joint d'étanchéité entre ceux-ci. Vu dans une vue en plan, la plaque d'étanchéité (22) est formée pour avoir une forme circulaire, et a une partie centrale (22a) renfoncée vers l'intérieur de la batterie. Dans la plaque d'étanchéité (22), un bord circonférentiel externe (27) fixé par emboutissage à l'emballage externe peut être configuré pour bifurquer en une première partie (27a) et une seconde partie (27b) dans la direction de l'épaisseur.
(JA)
本開示は、外装缶の開口部にカシメ固定された封口板の中央部分が電池内方側に反った形状となるように構成した円筒形電池を提供することを目的とする。本開示の一実施形態に係る円筒形電池は、正極板と負極板がセパレータを介して巻回された電極体と、電解液と、電極体及び電解液を収容する有底円筒状の外装缶と、外装缶の開口部にガスケットを介してカシメ固定される封口板(22)とを備える。封口板(22)は、平面視で円形状をなし、その中央領域(22a)が電池内方側に凹んだ形状を有しており、封口板(22)において外装缶にカシメ固定される外周端縁部(27)が、板厚方向に第1部分(27a)と第2部分(27b)とに分かれている。
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