发明公开
- 专利标题: LITHIUM ION SECONDARY BATTERY
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申请号: EP18935318.8申请日: 2018-09-27
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公开(公告)号: EP3859860A1公开(公告)日: 2021-08-04
- 发明人: ASAKAWA, Yuichiro , TSUIKI, Hirofumi , UENO, Hiroshi , ASSRESAHEGN DASALEGN, Birhanu , DAIGLE, Jean-Christophe , ZAGHIB, Karim
- 申请人: Murata Manufacturing Co., Ltd. , Hydro-Québec
- 申请人地址: JP Nagaokakyo-shi, Kyoto 617-8555 10-1, Higashikotari 1-chome,; CA Montréal, Québec H2Z 1A4 75 boulevard René-Lévesque Ouest 4e étage
- 代理机构: Witte, Weller & Partner Patentanwälte mbB
- 国际公布: WO2020065831 20200402
- 主分类号: H01M10/0567
- IPC分类号: H01M10/0567 ; H01M4/485 ; H01M4/58 ; H01M10/0525
摘要:
A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material having a reaction potential of 0.5 V or higher versus a lithium electrode, and has an electrochemical capacity per unit area of less than or equal to an electrochemical capacity per unit area of the positive electrode. The electrolytic solution includes a solvent, an electrolyte salt, and at least one of a diphenyl carbonate compound, an unsaturated cyclic carbonate ester, a first maleic anhydride compound, or a second maleic anhydride compound.
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