- 专利标题： Resin composition for nonaqueous electrolyte secondary battery, separator for nonaqueous electrolyte secondary battery using same, resin composition for electrode mixture layer, electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery
-
申请号： US17059108申请日： 2019-02-21
-
公开(公告)号： US11380935B2公开(公告)日： 2022-07-05
- 发明人: Yoshiyuki Nagasawa , Aya Shike
- 申请人： Kureha Corporation
- 申请人地址： JP Tokyo
- 专利权人： Kureha Corporation
- 当前专利权人： Kureha Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JPJP2018-104687 20180531
- 国际申请： PCT/JP2019/006559 WO 20190221
- 国际公布： WO2019/230075 WO 20191205
- 主分类号： H01M10/0565
- IPC分类号： H01M10/0565 ; H01M50/449 ; C08K5/02 ; C08L27/16 ; C08L27/20 ; H01M10/0525 ; C08F214/22 ; C08F214/28 ; H01M50/426 ; H01M4/04 ; H01M4/62
摘要：
A resin composition for a non-aqueous electrolyte secondary battery that includes a vinylidene fluoride copolymer having a constituent unit derived from vinylidene fluoride and a constituent unit derived from a fluorine-containing alkyl vinyl compound. A melting point, measured in accordance with ASTM D3418, of the vinylidene fluoride copolymer is from 105° C. to 125° C., and a mass fraction Wa of the constituent unit derived from the fluorine-containing alkyl vinyl compound in the vinylidene fluoride copolymer, a degree of crystallinity DC of the vinylidene fluoride copolymer, and a degree of amorphicity DA of the vinylidene fluoride copolymer satisfy Equation (1) below: 4.7≤Wa×(DC/DA)≤14 (1).
信息查询
