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1. (WO2017039126) BATTERY CELL AND METHOD FOR MANUFACTURING SAME

Pub. No.:    WO/2017/039126    International Application No.:    PCT/KR2016/006305
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Jun 15 01:59:59 CEST 2016
IPC: H01M 2/12
H01M 2/02
H01M 10/04
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: KIM, Cho Long
김초롱
CHOI, Yong Su
최용수
KIM, Sang Hun
김상훈
JUNG, Sang Suk
정상석
HWANG, Won Pill
황원필
KIM, Yong
김용
Title: BATTERY CELL AND METHOD FOR MANUFACTURING SAME
Abstract:
The present invention relates to a battery cell comprising: an electrode assembly provided with an electrode tab; a case for receiving the electrode assembly, at least a portion of the rim thereof being sealed to form a sealing surface; an electrode lead coupled to the electrode tab and extending outwardly from the case; a lead film provided on the upper surface and the lower surface of the electrode lead located on the sealing surface of the case and coupled together with the sealing surface; and a main gas vent pipe which is located inside the case and of which one end is buried in the lead film, wherein a part of the lead film is cut so that one end of the main gas vent pipe is exposed to the outside, whereby the gas within the case is discharged to the outside through the main gas vent pipe exposed to the outside.