Login| Sign Up| Help| Contact|

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 (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
YOON, Su Jin (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2018/016116
Publication Date:
July 11, 2019
Filing Date:
December 18, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H01M2/16; H01M2/14
Attorney, Agent or Firm:
JANG, Nak Yong et al. (7F. 14, Teheran-ro 16-gilGangnam-gu, Seoul, 06235, KR)
Download PDF: