Invention Grant
- Patent Title: Porous separation film for secondary battery including cellulose fiber and silica, and method for manufacturing same
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Application No.: US14649623Application Date: 2013-01-08
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Publication No.: US10069127B2Publication Date: 2018-09-04
- Inventor: Sun Young Lee , Sang Young Lee , Sang Jin Chun , Sang Bum Park , Don Ha Choi
- Applicant: Korea Forest Research Institute
- Applicant Address: KR Seoul
- Assignee: Korea Forest Research Institute
- Current Assignee: Korea Forest Research Institute
- Current Assignee Address: KR Seoul
- Priority: KR10-2012-0140511 20121205
- International Application: PCT/KR2013/000131 WO 20130108
- International Announcement: WO2014/088151 WO 20140612
- Main IPC: H01M6/16
- IPC: H01M6/16 ; H01M2/16 ; H01M10/0525 ; H01M10/0566 ; C08J5/18 ; H01M2/14 ; B29D7/01 ; H01M10/052 ; B01D71/10 ; B01D67/00 ; B01D69/14 ; B01D71/02
Abstract:
The present invention relates to a composite separation film comprising cellulose fiber and silica, a method for manufacturing the separation film, and a secondary battery including the separation film, wherein the separation film has excellent thermal stability, dimensional stability, wettability and electrochemical stability and has a simplified manufacturing process such that the unit cost of production can be reduced.
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