Invention Grant
- Patent Title: Composite separator for lithium secondary battery, and lithium secondary battery using the composite separator
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Application No.: US14921849Application Date: 2015-10-23
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Publication No.: US09871242B2Publication Date: 2018-01-16
- Inventor: Chan Hong , Jeawoan Lee , Soomi Eo , Seunghee Park
- 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: KR10-2014-0175377 20141208
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01M10/052
Abstract:
A composite separator and a lithium secondary battery including the composite separator, and the composite separator includes a separator; a first coating layer disposed on a surface of the separator and including a (meth)acrylic polymer and/or (meth)acrylic modified polyester resin; and a second coating layer disposed on another surface of the separator and including a vinylidene fluoride-based polymer.
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