发明名称 |
Positive electrode active material for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery |
摘要 |
Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery having at least a lithium-transition metal composite oxide of a layer structure, in which an existence ratio of at least one selected from the group consisting of elements which may become tetravalent and magnesium is 20% or more on a surface of the lithium-transition metal composite oxide. By use of this positive electrode active material, a nonaqueous electrolyte secondary battery having excellent battery characteristics, specifically, having excellent high rate characteristics, cycle characteristics, low-temperature characteristics, thermal stability, and the like, under the even more harsh environment for use can be realized. |
申请公布号 |
EP1463132(A2) |
申请公布日期 |
2004.09.29 |
申请号 |
EP20040007076 |
申请日期 |
2004.03.24 |
申请人 |
NICHIA CORPORATION |
发明人 |
TAKAHASHI, TAKESHI;OBA, TAKESHI;FUJINO, KENJI;TOKUNO, JUNICHI;MORIZAKI, MASUHIRO;KONDO, TAKEYUKI;SEYAMA, JUN |
分类号 |
H01M4/38;C01G51/04;C01G53/04;H01M4/131;H01M4/36;H01M4/48;H01M4/485;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/04;H01M10/0525;H01M10/0587;H01M10/36 |
主分类号 |
H01M4/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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