Invention Grant
- Patent Title: Separator for lithium secondary battery and lithium secondary battery including the same
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Application No.: US15761724Application Date: 2017-05-30
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Publication No.: US10886514B2Publication Date: 2021-01-05
- Inventor: Sang Wook Woo , Oh Byong Chae , Hee Won Choi , Eun Kyung Kim
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2016-0066720 20160530,KR10-2017-0066899 20170530
- International Application: PCT/KR2017/005651 WO 20170530
- International Announcement: WO2017/209495 WO 20171207
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01M2/14 ; H01M10/0525 ; H01M4/38 ; H01M4/134 ; H01M4/62 ; H01M10/052 ; B32B27/00 ; C08J7/12 ; H01M4/36 ; H01M4/02
Abstract:
The present invention relates to a separator for a lithium secondary battery, including a porous resin comprising one or more polar functional groups selected from the group consisting of —C—F; and —C—OOH and —C═O on a surface thereof, wherein, among the polar functional groups, a molar ratio of —C—OOH and —C═O to —C—F ranges from 0.2:0.8 to 0.8:0.2, and a method of manufacturing the same.
Public/Granted literature
- US20180358596A1 SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Public/Granted day:2018-12-13
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