- Patent Title: Separator including polyethylene oxide-conductive carbon composite layer on base separator, method for manufacturing the same, and lithium secondary battery comprising the same
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Application No.: US16972524Application Date: 2020-04-28
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Publication No.: US11862811B2Publication Date: 2024-01-02
- Inventor: Kihyun Kim , Seungbo Yang
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee: LG ENERGY SOLUTION, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR 20190052308 2019.05.03 KR 20200049795 2020.04.24
- International Application: PCT/KR2020/005614 2020.04.28
- International Announcement: WO2020/226328A 2020.11.12
- Date entered country: 2020-12-04
- Main IPC: H01M50/446
- IPC: H01M50/446 ; H01M50/403 ; H01M50/449 ; H01M10/0525
Abstract:
A functional separator capable of improving the capacity and lifetime of a battery by coating a material capable of reducing lithium polysulfide on the surface of the separator, a method for manufacturing the same, and a lithium secondary battery including the same. The functional separator includes a base separator and a polyethylene oxide-conductive carbon composite layer present on the surface of the base separator.
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