- 专利标题: Lithium secondary battery and manufacturing method of the same
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申请号: US15082662申请日: 2016-03-28
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公开(公告)号: US09876229B2公开(公告)日: 2018-01-23
- 发明人: Hiroshi Yamasaki , Tatsuya Hashimoto
- 申请人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 申请人地址: JP Aichi-ken
- 专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址: JP Aichi-ken
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2015-073202 20150331
- 主分类号: H01M4/587
- IPC分类号: H01M4/587 ; H01M4/133 ; H01M10/052 ; H01M10/0567 ; H01M4/02
摘要:
A manufacturing method of the invention includes: a process of preparing a positive electrode which includes a positive electrode mixture layer, a negative electrode which includes a negative electrode mixture layer, and a non-aqueous electrolyte; and a process of accommodating the positive electrode, the negative electrode, and the non-aqueous electrolyte in a battery case. The non-aqueous electrolyte contains lithium sulfate. In addition, when a BET specific surface area of the negative electrode mixture layer is referred to as X (m2/g) and an addition amount of the lithium sulfate with respect to a total amount of the non-aqueous electrolyte is referred to as Y (mass %), the following relationships are satisfied: 3≦X≦4.3; 0.02≦Y≦0.1; and Y/X≦0.023.
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