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1. WO2021060009 - SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2021/060009
Publication Date 01.04.2021
International Application No. PCT/JP2020/034404
International Filing Date 11.09.2020
IPC
H01M 10/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 50/528 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
50Current conducting connections for cells or batteries
528Fixed electrical connections, i.e. not intended for disconnection
H01M 50/531 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
50Current conducting connections for cells or batteries
531Electrode connections inside a battery casing
H01M 50/572 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
50Current conducting connections for cells or batteries
572Means for preventing undesired use or discharge
CPC
H01M 10/04
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
H01M 50/528
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
528Fixed electrical connections, i.e. not intended for disconnection
H01M 50/531
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
531Electrode connections inside a battery casing
H01M 50/572
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
572Means for preventing undesired use or discharge
Applicants
  • 三洋電機株式会社 SANYO ELECTRIC CO., LTD. [JP]/[JP]
  • パナソニック株式会社 PANASONIC CORPORATION [JP]/[JP]
Inventors
  • 脇元 亮一 WAKIMOTO Ryoichi
  • 今西 裕明 IMANISHI Hiroaki
  • 宮村 幸延 MIYAMURA Yukinobu
Agents
  • 徳田 佳昭 TOKUDA Yoshiaki
  • 村山 正人 MURAYAMA Masato
Priority Data
2019-17487826.09.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
(FR) BATTERIE SECONDAIRE ET SON PROCÉDÉ DE FABRICATION
(JA) 二次電池及びその製造方法
Abstract
(EN)
Provided is a secondary battery in which an electrode body having a positive electrode tab group on one end thereof is accommodated in a battery case, wherein: a first positive electrode current collector comprises a first region disposed between a sealing plate and the electrode body, and a second region disposed between the electrode body and a first side wall of a rectangular exterior body constituting the battery case; the positive electrode tab group is connected in a folded state to a second positive electrode current collector; and the second positive electrode current collector is welded to the second region.
(FR)
L'invention concerne une batterie secondaire dans laquelle un corps d'électrode ayant un groupe de languettes d'électrode positive sur une extrémité de celui-ci est logé dans un compartiment de batterie, dans lequel : un premier collecteur de courant d'électrode positive comprend une première région disposée entre une plaque d'étanchéité et le corps d'électrode, et une seconde région disposée entre le corps d'électrode et une première paroi latérale d'un corps extérieur rectangulaire constituant le compartiment de batterie ; le groupe de languettes d'électrode positive est connecté dans un état plié à un second collecteur de courant d'électrode positive ; et le second collecteur de courant d'électrode positive est soudé à la seconde région.
(JA)
一方の端部に正極タブ群を有する電極体を電池ケースに収容した二次電池であって、第1正極集電体は封口板と電極体の間に配置された第1領域と、電池ケースを構成する角形外装体の第1側壁と電極体の間に配置された第2領域を有し、正極タブ群は折り曲げられた状態で第2正極集電体に接続され、第2正極集電体は第2領域に溶接されている。
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