发明申请
- 专利标题: NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY, CURRENT COLLECTOR AND VEHICLE
- 专利标题(中): 非电解电解质二次电池,电流收集器和车辆
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申请号: US14102949申请日: 2013-12-11
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公开(公告)号: US20140170452A1公开(公告)日: 2014-06-19
- 发明人: Takeshi ABE
- 申请人: Takeshi ABE
- 申请人地址: JP Toyota-shi
- 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 Toyota-shi
- 优先权: JP2012-274655 20121217
- 主分类号: H01M4/66
- IPC分类号: H01M4/66 ; H01M4/525 ; H01M4/505 ; H01M4/131
摘要:
A nonaqueous electrolytic solution secondary battery includes an electrode body that contains a positive electrode and a negative electrode. An upper limit operating potential of the positive electrode is 4.5 V or more based on metallic lithium. The positive electrode includes a current collector and an active material layer formed on the current collector. The current collector includes a base material and a surface layer disposed on a surface of the base material. The surface layer is disposed at least in a region where the active material layer is not formed on the surface of the base material. The surface layer is formed of an aluminum material having an aluminum content of 99.85% by mass or more. The base material is formed of a conductive material having strength larger than strength of the surface layer.
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