Invention Grant
- Patent Title: Separator for rechargeable lithium battery, and method for preparing the same, and rechargeable lithium battery including the same
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Application No.: US16737410Application Date: 2020-01-08
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Publication No.: US11355815B2Publication Date: 2022-06-07
- Inventor: Byung-Soo Kim , Jaehyun Cho , Dowon Kim
- 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: Lee IP Law, PC
- Priority: KR10-2019-0003519 20190110
- Main IPC: H01M50/431
- IPC: H01M50/431 ; H01M10/0525 ; H01M10/0565 ; H01M50/403
Abstract:
A separator for a rechargeable battery includes a porous substrate, and a coating layer including a plurality of annular patterns on at least one surface of the porous substrate. The annular patterns may include a plurality of polymer microparticles, the annular patterns may have an average particle diameter (D50) of about 50 μm to about 500 μm, and rings of the annular patterns may have a ring width of about 5 μm to about 50 μm.
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