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1. CN110050362 - POUCH-TYPE SECONDARY BATTERY

Office China
Application Number 201880004795.X
Application Date 09.08.2018
Publication Number 110050362
Publication Date 23.07.2019
Publication Kind A
IPC
H01M 2/34
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
34with provision for preventing undesired use or discharge
H01M 2/26
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
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
H01M 2/02
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
CPC
H01M 2/0207
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
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
0207Flat-shaped cells or batteries of flat cells
H01M 2/021
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
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
0207Flat-shaped cells or batteries of flat cells
021with both terminals passing through the case or cover
H01M 2/0212
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
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
0207Flat-shaped cells or batteries of flat cells
0212with plate-like or sheet-like terminals
H01M 2/0275
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
0257characterised by the material
0275of flexible envelopes or bags around open cell elements
H01M 2/08
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
08Sealing materials
H01M 2/345
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
34with provision for preventing undesired use or discharge ; , e.g. complete cut of current
345in response to pressure
Applicants LG CHEMICAL LTD
株式会社LG化学
Inventors PARK JONG PIL
朴鍾弼
CHOI SEUNG DON
崔丞惇
Agents 北京律诚同业知识产权代理有限公司 11006
Priority Data 10-2017-0114613 07.09.2017 KR
Title
(EN) POUCH-TYPE SECONDARY BATTERY
(ZH) 袋型二次电池
Abstract
(EN)
A pouch-type secondary battery according to an embodiment of the present invention for resolving the above-described problem comprises: an electrode assembly in which a separator and an electrode having a positive electrode and a negative electrode are stacked; a pouch-type battery case which accommodates the electrode assembly; an electrode tab which is connected to the electrode and protrudes from one side of the electrode assembly; a first electrode lead having one end connected to the electrode tab; a second electrode lead which has one end connected to the other end of the first electrodelead and the other end protruding to the outside of the battery case; and a connection part for adhering and connecting the first electrode lead and the second electrode lead to each other, wherein,on at least one among the first and second electrode leads, at least one notch is formed in the adhering surfaces adhered to each other through the connection part.

(ZH)
为了解决问题,根据本发明一实施方式的袋型二次电池包括:电极组件,在电极组件中层压有包括正极和负极的电极以及隔膜;电池壳体,其具有袋形状以容纳电极组件;电极接片,其连接至电极并且从电极的一侧伸出;第一电极引线,其具有连接至电极接片的一端;第二电极引线,其具有连接至第一电极引线的另一端的一端和伸出到电池壳体外部的另一端;和连接部,其将第一电极引线与第二电极引线结合,以将第一电极引线与第二电极引线彼此连接,其中,在第一电极引线和第二电极引线中的至少一个中,在第一电极引线和第二电极引线通过连接部彼此结合的结合表面上设置有至少一个凹口。