发明申请
- 专利标题： POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
- 专利标题（中）： 用于非水电解质二次电池的正极电极活性材料及其制造方法
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申请号： US12270270申请日： 2008-11-13
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公开(公告)号： US20100112447A1公开(公告)日： 2010-05-06
- 发明人: Norihiro YAMAMOTO , Yutaka Kawatate , Hidekazu Hiratsuka , Takahiro Sakamoto
- 申请人： Norihiro YAMAMOTO , Yutaka Kawatate , Hidekazu Hiratsuka , Takahiro Sakamoto
- 优先权： JP2008-279944 20081030
- 主分类号： H01M4/52
- IPC分类号： H01M4/52 ; H01M4/50
摘要：
A positive electrode active material for a non-aqueous electrolyte secondary battery is provided. The positive electrode active material includes a composite oxide containing lithium and metal M other than lithium, and M contains Ni, Mn, and Co. The molar ratio of Ni to the total of Ni, Mn, and Co is from 0.45 to 0.65, and the molar ratio of Mn to the total of Ni, Mn, and Co is from 0.15 to 0.35. The positive electrode active material has a pressed density under a compression of 60 MPa of 3.3 g/cm3 or more and 4.3 g/cm3 or less. The positive electrode active material has a volume resistivity under a compression of 60 MPa of 100 Ω·cm or more and less than 1000 Ω·cm.
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