| 发明名称 |
NONAQUEOUS ELECTROLYTE SECONDARY CELL AND POSITIVE ELECTRODE ACTIVE MATERIAL |
| 摘要 |
A positive active material for nonaqueous electrolyte secondary batteries which has a higher capacity and improved thermal stability in a charged state and is less expensive compared to the current active material of LiCoO2 is provided by a lithium compound oxide having the formula: LiaNibCocMndMeO2 where M stands for one or two of W and Mo, 0.90 ≤ a ≤ 1.15, 0<b<0.99, 0< c ≤ 0.5, 0 < d ≤ 0.5, 0 < c + d ≤ 0.9, 0.01 ≤ e ≤ 0.1, and b + c + d + e = 1, the lithium compound oxide giving an X-ray diffraction pattern including a diffraction peak or peaks assigned to a compound oxide of Li and W and/or a compound oxide of Li and Mo, in addition to main diffraction peaks assigned to a hexagonal crystal structure. <IMAGE> |
| 申请公布号 |
EP1351327(A4) |
申请公布日期 |
2004.08.18 |
| 申请号 |
EP20010996895 |
申请日期 |
2001.11.19 |
| 申请人 |
CHUO DENKI KOGYO CO., LTD.;JAPAN STORAGE BATTERY CO., LTD. |
发明人 |
YAMATO, KOJI;HAYASHI, KOJI;KITAMURA, HAJIME;MIYASHITA, TAKAHIRO;NARUOKA, YOSHINORI;TORIYAMA, JUNICHI;TERASAKI, MASANAO |
| 分类号 |
H01M10/05;C01G41/00;C01G53/00;H01M4/505;H01M4/525 |
主分类号 |
H01M10/05 |
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