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Title:
SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/209087
Kind Code:
A1
Abstract:
The present invention provides a separator for a lithium secondary battery and a lithium secondary battery comprising same, the separator comprising: a base; a first coating layer containing a first organic binder capable of binding to a gel polymer electrolyte through an epoxy ring-opening reaction; and a second coating layer containing a second organic binder; wherein the first organic binder bears functional groups capable of ring-opening reaction with an epoxy group or a combination thereof, and the gel polymer electrolyte is formed by polymerizing oligomers bearing an epoxy group, a functional group capable of ring-opening reaction with the epoxy group, or a combination thereof.

Inventors:
SHIN, Won Kyung (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
AHN, Kyoung Ho (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
LEE, Chul Haeng (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2019/005146
Publication Date:
October 31, 2019
Filing Date:
April 29, 2019
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H01M10/0565; C08L101/06; H01M2/16; H01M10/052; H01M10/0583; H01M10/0585
Foreign References:
KR20060042326A2006-05-12
KR101637477B12016-07-07
KR20140123140A2014-10-22
KR101346414B12014-01-16
KR20130105334A2013-09-25
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (11th Floor, 343 Gangnam-daero,,Seocho-gu, Seoul, 06626, KR)
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