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Patent Searching and Data


Title:
SEPARATOR COMPRISING BINDERS HAVING DIFFERENT GLASS TRANSITION TEMPERATURES, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/135510
Kind Code:
A1
Abstract:
The present invention relates to a separator for a rechargeable battery, the separator comprising: a separator substrate formed from a polymer resin having a porous structure; a first coating layer coated on the separator substrate and comprising a first inorganic material and a first binder; and a second coating layer coated on the first coating layer and comprising a second inorganic material and a second binder, wherein the first coating layer comprises a third binder having a glass transition temperature (Tg) lower than 30°C, and the second coating layer comprises a fourth binder having a glass transition temperature of 30°C or higher.

Inventors:
KIM MYEONG SOO (KR)
YOON SU JIN (KR)
Application Number:
KR2018/016116
Publication Date:
July 11, 2019
Filing Date:
December 18, 2018
Export Citation:
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Assignee:
LG CHEMICAL LTD (07336, KR)
International Classes:
H01M2/16; H01M2/14
Foreign References:
KR20160118986A2016-10-12
KR20170112250A2017-10-12
KR20170132349A2017-12-01
KR20140055901A2014-05-09
KR20160127473A2016-11-04
JP2016072117A2016-05-09
KR20060072065A2006-06-27
Attorney, Agent or Firm:
JANG, Nak Yong et al. (06235, KR)
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