发明授权
- 专利标题: Positive electrode active material for lithium secondary battery, and use thereof
- 专利标题(中): 锂二次电池用正极活性物质及其用途
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申请号: US13393621申请日: 2009-09-04
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公开(公告)号: US09159998B2公开(公告)日: 2015-10-13
- 发明人: Hiroki Nagai , Satoshi Goto , Hidekazu Hiratsuka
- 申请人: Hiroki Nagai , Satoshi Goto , Hidekazu Hiratsuka
- 申请人地址: JP Toyota-shi, Aichi
- 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, Aichi
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 国际申请: PCT/JP2009/065473 WO 20090904
- 国际公布: WO2011/027455 WO 20110310
- 主分类号: H01M4/13
- IPC分类号: H01M4/13 ; H01M4/505 ; H01M4/525 ; H01M10/052 ; C01G53/00
摘要:
A positive electrode active material provided in the present invention is characterized in that it is substantially formed of a lithium nickel cobalt manganese composite oxide and that a molar content ratio (NiIII/NiII) of bivalent nickel atoms (NiII) and trivalent nickel atoms (NiIII) of nickel atoms constituting the composite oxide is 0.15≦(NiIII/NiII)≦0.95.
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