Invention Grant
- Patent Title: Microporous membrane winding and method for manufacturing the same
- Patent Title (中): 微孔膜绕组及其制造方法
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Application No.: US13123846Application Date: 2010-08-25
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Publication No.: US09184429B2Publication Date: 2015-11-10
- Inventor: Daisuke Inagaki , Hisashi Takeda , Shintaro Inaba
- Applicant: Daisuke Inagaki , Hisashi Takeda , Shintaro Inaba
- Applicant Address: JP Tokyo
- Assignee: ASAHI KASEI E-MATERIALS CORPORATION
- Current Assignee: ASAHI KASEI E-MATERIALS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JP2009-194445 20090825
- International Application: PCT/JP2010/064359 WO 20100825
- International Announcement: WO2011/024849 WO 20110303
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01G11/52 ; H01M2/18 ; H01M2/14 ; H01M10/0525
Abstract:
A microporous membrane winding includes a microporous membrane wound around a core. The core has an outer diameter of 5 inches or greater, and has an outer surface with a surface roughness of 3.0 μm or less. A microporous membrane that is excellent in thickness uniformity and is favorably used as a separator for a lithium-ion secondary battery can be obtained from the microporous membrane winding.
Public/Granted literature
- US20120164538A1 MICROPOROUS MEMBRANE WINDING AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2012-06-28
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