- Patent Title: Composite separator including porous substrate with porous layer including polyacrylic acid metal salt binder and inorganic particles, lithium battery including the same, and method of preparing the same
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Application No.: US17209692Application Date: 2021-03-23
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Publication No.: US11862812B2Publication Date: 2024-01-02
- Inventor: Minho Cho , Byungmin Lee , Kyoseon Koo , Esul Jung
- Applicant: Samsung SDI Co., Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung SDI Co., Ltd.
- Current Assignee: Samsung SDI Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR 20200035811 2020.03.24
- Main IPC: H01M50/446
- IPC: H01M50/446 ; H01M50/449 ; H01M50/42 ; H01M10/0525 ; H01M50/489 ; H01M50/403 ; H01M50/431
Abstract:
Provided are a composite separator, a lithium battery including the same, and a method of manufacturing the composite separator. The composite separator includes: a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a water-soluble binder and inorganic particles, and the water-soluble binder includes a polyacrylic acid metal salt.
Public/Granted literature
- US20210305658A1 COMPOSITE SEPARATOR, LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE COMPOSITE SEPARATOR Public/Granted day:2021-09-30
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