发明申请
- 专利标题： Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
- 专利标题（中）： 锂离子二次电池和锂离子二次电池使用的阴极材料
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申请号： US12805829申请日： 2010-08-20
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公开(公告)号： US20110129734A1公开(公告)日： 2011-06-02
- 发明人: Hiroaki Konishi , Toyotaka Yuasa
- 申请人： Hiroaki Konishi , Toyotaka Yuasa
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 优先权： JP2009-269403 20091127
- 主分类号： H01M4/52
- IPC分类号： H01M4/52 ; H01M4/90
摘要：
A lithium ion secondary battery according to the present invention uses a cathode material obtained by mixing a first cathode active substance represented by a compositional formula: Lix1Nia1Mnb1COc1O2 (in which 0.2≦x1≦1.2, 0.6≦a1≦0.9, 0.05≦b1≦0.3, 0.05≦c1≦0.3, and a1+b1+c1=1.0); and a second cathode active substance represented by a compositional formula: Lix2Nia2Mnb2COc2MdO2 (in which 0.2≦x2≦1.2, 0.7≦a2≦0.9, 0.05≦b2≦0.3, 0.05≦c2≦0.3, M=Mo, W, 0≦d≦0.06, and a2+b2+c2+d=1.0).
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