发明申请
- 专利标题： LITHIUM ION SECONDARY BATTERY
- 专利标题（中）： 锂离子二次电池
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申请号： US13171837申请日： 2011-06-29
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公开(公告)号： US20120003542A1公开(公告)日： 2012-01-05
- 发明人: Hiroaki KONISHI , Toyotaka Yuasa , Masanori Yoshikawa
- 申请人： Hiroaki KONISHI , Toyotaka Yuasa , Masanori Yoshikawa
- 专利权人： HITACHI, LTD.
- 当前专利权人： HITACHI, LTD.
- 优先权： JP2010-148424 20100630
- 主分类号： H01M4/52
- IPC分类号： H01M4/52 ; H01M2/14 ; H01M4/525 ; H01M4/50
摘要：
A high safety cathode active material having large capacity, suppressing deterioration in storage at high temperature, and ensuring thermal stability in a charged state is provided. A cathode active material represented by a composition formula of LixNiaMnbCocM1dM2eO2 where M1 is at least one or more kinds of elements selected from the group consisting of Al, Ti, and Mg; M2 is at least one or more kinds of elements selected from the group consisting of Mo, W, and Nb; 0.2≦x≦1.2; 0.6≦a≦0.8; 0.05≦b≦0.3; 0.05≦c≦0.3; 0.02≦d≦0.04; 0.02≦e≦0.06; and a+b+c+d+e=1.0 is used.