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 (KR)
AHN KYOUNG HO (KR)
LEE CHUL HAENG (KR)
AHN KYOUNG HO (KR)
LEE CHUL HAENG (KR)
Application Number:
PCT/KR2019/005146
Publication Date:
October 31, 2019
Filing Date:
April 29, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0565; C08L101/06; H01M2/16; H01M10/052; H01M10/0583; H01M10/0585
Foreign References:
| KR20060042326A | 2006-05-12 | |||
| KR101637477B1 | 2016-07-07 | |||
| KR20140123140A | 2014-10-22 | |||
| KR101346414B1 | 2014-01-16 | |||
| KR20130105334A | 2013-09-25 | |||
| KR20150131513A | 2015-11-25 |
Other References:
See also references of EP 3761431A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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