- 专利标题： ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
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申请号： EP23150762.5申请日： 2023-01-09
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公开(公告)号： EP4213263A2公开(公告)日： 2023-07-19
- 发明人: CHO, In Haeng , SHIM, Yu Na , KIM, Moon Sung , KIM, Sung Jin , PARK, Soo Min , LEE, Min Young , LEE, Jin Hong
- 申请人： SK On Co., Ltd.
- 申请人地址： KR Seoul 03161 51, Jong-ro Jongno-gu
- 代理机构： Stolmár & Partner Patentanwälte PartG mbB
- 优先权： KR20220005585 20220114
- 主分类号： H01M10/0525
- IPC分类号： H01M10/0525 ; H01M10/0567 ; H01M10/0569
摘要：
An electrolyte solution for a lithium secondary battery includes an organic solvent, a lithium salt, and a fluorine-based additive in which a terminal difluoro-phosphite group (-OPF 2 ) is bonded to a branched saturated hydrocarbon group. The fluorine-based additive prevent side reactions in the electrolyte solution to improve stability of a cathode active material.
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