Search International and National Patent Collections

1. (WO2013157722) SECONDARY BATTERY, SECONDARY BATTERY COMPONENT, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Pub. No.:    WO/2013/157722    International Application No.:    PCT/KR2012/011373
Publication Date: Fri Oct 25 01:59:59 CEST 2013 International Filing Date: Tue Dec 25 00:59:59 CET 2012
IPC: H01M 2/08
H01M 2/12
H01M 2/34
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: YANG, Jung-Hoon
양정훈
CHO, Young-Suk
조영석
CHOI, Seung-Don
최승돈
KANG, Ok-Gyun
강옥균
Title: SECONDARY BATTERY, SECONDARY BATTERY COMPONENT, AND METHOD FOR MANUFACTURING SECONDARY BATTERY
Abstract:
The secondary battery according to the present invention comprises: an electrode assembly including an electrode tab; an electrode lead attached to the electrode tab and including at least one lead hole; a pouch case accommodating the electrode assembly in such a manner that the electrode lead is withdrawn to the outside; and a venting pattern portion formed in an area corresponding to the lead hole, and sealing tape provided in such a manner as to be interposed between the electrode lead and the inner surface of the pouch case. According to the present invention, the sealing state of the pouch case is swiftly released in the event that gas is generated in the pouch case due to an abnormality such as excess current flowing through the secondary battery caused by abnormal operation of a protective circuit, and thus the secondary battery can be used safely.