发明授权
- 专利标题： Cathode material, cathode, and lithium ion secondary battery
- 专利标题（中）： 阴极材料，阴极和锂离子二次电池
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申请号： US13359759申请日： 2012-01-27
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公开(公告)号： US08828607B2公开(公告)日： 2014-09-09
- 发明人: Hiroaki Konishi , Masanori Yoshikawa
- 申请人： Hiroaki Konishi , Masanori Yoshikawa
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP.
- 优先权： JP2011-037732 20110224
- 主分类号： H01M4/13
- IPC分类号： H01M4/13 ; H01M10/0525 ; H01M4/505 ; H01M4/525
摘要：
It is an object to provide a cathode active material and a cathode which can attain a lithium ion secondary battery with high capacity and high security, and further to provide the lithium ion secondary battery with high capacity and high security.According to the present invention, the cathode active material is represented by the following composition formula: Li1.1+xNiaM1bM2cO2 wherein M1 represents Co, or Co and Mn; M2 represents Mo, W or Nb; −0.07≦x≦0.1; 0.6≦a≦0.9; 0.05≦b≦0.38; and 0.02≦c≦0.06.