发明申请
US20120164532A1 LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, ELECTRIC TOOL, ELECTRIC VEHICLE, AND POWER STORAGE SYSTEM
审中-公开
锂离子二次电池，正极电极活性材料，正极电极，电动工具，电动车辆和蓄电池系统
- 专利标题： LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, ELECTRIC TOOL, ELECTRIC VEHICLE, AND POWER STORAGE SYSTEM
- 专利标题（中）： 锂离子二次电池，正极电极活性材料，正极电极，电动工具，电动车辆和蓄电池系统
-
申请号： US13315040申请日： 2011-12-08
-
公开(公告)号： US20120164532A1公开(公告)日： 2012-06-28
- 发明人: Masaharu Senoue , Kenichi Kawase , Nozomu Morita , Kazuaki Endoh , Akira Takamuku , Yosuke Hosoya , Guohua Li
- 申请人： Masaharu Senoue , Kenichi Kawase , Nozomu Morita , Kazuaki Endoh , Akira Takamuku , Yosuke Hosoya , Guohua Li
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010-293270 20101228
- 主分类号： H01M4/525
- IPC分类号： H01M4/525 ; H01M4/48 ; H01M4/38 ; H01M4/54 ; H01M4/58
摘要：
A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, wherein the positive electrode includes a first lithium composite oxide and a second lithium composite oxide expressed by the following equation (1), as a positive electrode active material, and a charge capacity (vs lithium metal) per unit volume during a charge and discharge of a first cycle is larger in the second lithium composite oxide compared to the first lithium composite oxide, and a discharge voltage (vs lithium metal) during the charge and discharge of the first cycle is lower in the second lithium composite oxide compared to the first lithium composite oxide, Li1+a(MnbCocNi1-b-c)1-aO2 . . . (1), where a, b, and c satisfy relationships of 0
信息查询
