| 发明名称 |
LITHIUM-MANGANESE COMPOSITE OXIDE, POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY CELL, POSITIVE ELECTRODE AND LITHIUM SECONDARY CELL, AND METHOD FOR PREPARING LITHIUM-MANGANESE COMPOSITE OXIDE |
| 摘要 |
A lithium-manganese composite oxide which is represented by the following general formula (1): Li1+ alpha Mn2- alpha -yMyO4- delta wherein 0 </= a </= 0.5, 0.005 </= y </= 0.5, 0.005 </= y </= 0.5, -0.1 </= d </= 0.1, and M represents an element except Li and Mn, and, in a <7>Li-NMR spectrum thereof, has a ratio (I0ppm/I500ppm) of the intensity of the main peak in a range of 5 +/- 40 ppm to that in a range of 525 +/- 40 ppm which satisfies the following formula: I0ppm/I500ppm</= 0.65 y + 0.02. The lithium-manganese composite oxide is suitable for an active material of a positive electrode which can provide a lithium secondary cell being excellent in cycle characteristics at a high temperature. |
| 申请公布号 |
WO0136334(A1) |
申请公布日期 |
2001.05.25 |
| 申请号 |
WO2000JP07704 |
申请日期 |
2000.11.01 |
| 申请人 |
MITSUBISHI CHEMICAL CORPORATION;SHIMA, KOJI;UTSUNOMIYA, AKIRA;TSURITA, YASUSHI |
发明人 |
SHIMA, KOJI;UTSUNOMIYA, AKIRA;TSURITA, YASUSHI |
| 分类号 |
C01G45/00;H01M4/02;H01M4/50;H01M4/505;H01M10/052;H01M10/36 |
主分类号 |
C01G45/00 |
| 代理机构 |
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| 主权项 |
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| 地址 |
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