- 专利标题： BINDER FOR ALL-SOLID-STATE SECONDARY BATTERY, BINDER COMPOSITION FOR ALL-SOLID-STATE SECONDARY BATTERY, SLURRY FOR ALL-SOLID-STATE SECONDARY BATTERY, SOLID ELECTROLYTE SHEET FOR ALL-SOLID-STATE SECONDARY BATTERY, METHOD FOR PRODUCING SAME, ALL-SOLID-STATE SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME
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申请号： EP22745611.8申请日： 2022-01-14
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公开(公告)号： EP4287292A1公开(公告)日： 2023-12-06
- 发明人: ITAI, Shingo , ASO, Keigo , IIDA, Masashi , ABE, Tatsuya
- 申请人： ENEOS Materials Corporation
- 申请人地址： JP Tokyo, 105-7109 5-2, Higashi-Shimbashi 1-chome, Minato-ku
- 代理机构： TBK
- 优先权： JP2021012931 20210129
- 国际公布： WO2022163387 20220804
- 主分类号： H01M4/13
- IPC分类号： H01M4/13 ; H01M4/139 ; H01M4/62 ; H01M10/052 ; H01M10/0562 ; H01M10/058
摘要：
Provided is a binder for an all-solid-state secondary battery, which can suppress binder migration in a production process for an electrode of an all-solid-state secondary battery, leading to satisfactory binding properties and flexibility of the resultant electrode, and to excellent lithium ion conductivity, and by extension, can achieve a satisfactory cycle life characteristic. The binder for an all-solid-state secondary battery according to the present invention includes a conjugated diene-based polymer (A) that: has a conjugated diene unit based on a conjugated diene compound; and has a solubility parameter (SP value) of 16.80 MPa 1/2 or more and 17.80 MPa 1/2 or less.
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