| 发明名称 |
LITHIUM-COBALT COMPOSITE OXIDE, METHOD FOR PREPARING THE SAME, POSITIVE ELECTRODE FOR LITHIUM SECONDARY CELL AND LITHIUM SECONDARY CELL USING THE SAME |
| 摘要 |
A composite oxide suitable for an active material of a positive electrode for a lithium secondary cell, which is represented by the formula LiCo1-XMXO2, wherein 0 </= X </= 0.02 and M is at least one metal selected from the group consisting of Ta, Ti, Nb, Zr and Hf, and has a half-width of the diffraction peak for (110) face having 2 theta = 66.5 +/- 1 DEG , as measured by the X-ray diffraction using CuK alpha as a ray source, of 0.070 to 0.180 DEG ; a method for preparing the composite oxide; a positive electrode and a lithium secondary cell using the composite oxide. The lithium secondary cell can be used in a wide range of voltage, has a large electric capacity, exhibits excellent workability at a low temperature, is excellent in the durability with respect to charge-discharge cycle and is highly safe. |
| 申请公布号 |
WO0127032(A1) |
申请公布日期 |
2001.04.19 |
| 申请号 |
WO2000JP06959 |
申请日期 |
2000.10.05 |
| 申请人 |
SEIMI CHEMICAL CO., LTD.;SUHARA, MANABU;SUNAHARA, KAZUO;SAITOH, NAOSHI;KATOH, TSUTOMU |
发明人 |
SUHARA, MANABU;SUNAHARA, KAZUO;SAITOH, NAOSHI;KATOH, TSUTOMU |
| 分类号 |
C01G51/00;H01M4/02;H01M4/131;H01M4/1391;H01M4/48;H01M4/485;H01M4/52;H01M4/525 |
主分类号 |
C01G51/00 |
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