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Title:
POUCH-TYPE SECONDARY BATTERY HAVING GAS DISCHARGE MEANS
Document Type and Number:
WIPO Patent Application WO/2019/208911
Kind Code:
A1
Abstract:
The present invention relates to a pouch-type secondary battery and, more specifically, to a pouch-type secondary battery having a gas discharge means, the secondary battery comprising: an electrode assembly including a cathode, an anode, and a separator interposed therebetween; a pouch-type case surrounding the electrode assembly; a pair of insulating films disposed opposite to each other in a predetermined edge area of the pouch-type case; a cathode lead electrically connected to a cathode collector of the electrode assembly at one side thereof, and extending through the space between the pair of insulating films and protruding out of the pouch-type case at the other side thereof; an anode lead electrically connected to an anode collector of the electrode assembly at one side thereof and extending through the space between the pair of insulating films and protruding out of the pouch-type case at the other side thereof; and a gas discharge member interposed between the pair of insulating films so as to discharge gas generated in the pouch-type case to the outside of the case, whereby the battery can be prevented from swelling and exploding.

Inventors:
KIM, Sang Hun (LG Chem Research Park, 188 Munji-ro,Yuseong-gu, Daejeon, 34122, KR)
KIM, Myung Hwan (LG Chem Research Park, 188 Munji-ro,Yuseong-gu, Daejeon, 34122, KR)
CHOI, Yong Su (LG Chem Research Park, 188 Munji-ro,Yuseong-gu, Daejeon, 34122, KR)
KIM, Na Yoon (LG Chem Research Park, 188 Munji-ro,Yuseong-gu, Daejeon, 34122, KR)
YU, Hyung Kyun (LG Chem Research Park, 188 Munji-ro,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2019/001034
Publication Date:
October 31, 2019
Filing Date:
January 24, 2019
Export Citation:
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Assignee:
LG CHEM, LTD. (128Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H01M2/12; H01M2/02; H01M2/10; H01M2/26; H01M2/34
Foreign References:
KR101245284B12013-03-19
KR20160014828A2016-02-12
KR20160126157A2016-11-02
KR101268296B12013-05-28
KR20140002120A2014-01-08
Attorney, Agent or Firm:
JANG, Nak Yong et al. (7F. 14, Teheran-ro 16-gilGangnam-gu, Seoul, 06235, KR)
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