| 发明名称 |
POSITIVE ACTIVE MATERIAL AND LITHIUM ION SECONDARY BATTERY USING IT |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive active material capable of enhancing discharge capacity and cycle characteristics of a secondary battery. <P>SOLUTION: The positive active material having hexagonal structure and used in the secondary battery conducting charge/discharge cycles is represented by general formula: Li<SB>a</SB>Co<SB>1-b</SB>Mn<SB>b</SB>O<SB>d</SB>, wherein 0<a<1.3; 0<b≤0.15; 1.8<d<2.2; and when lattice constants of c axis before and after charge are represented by c1, c2, (c2-c1)/c1≤0.02. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
| 申请公布号 |
JP2004356034(A) |
申请公布日期 |
2004.12.16 |
| 申请号 |
JP20030155005 |
申请日期 |
2003.05.30 |
| 申请人 |
MITSUBISHI ELECTRIC CORP;JAPAN STORAGE BATTERY CO LTD |
发明人 |
MAEKAWA TAKESHI;KAWAMATA IWAO;MIYASHITA SHOJI;ARAKANE ATSUSHI;TERASAKI MASANAO |
| 分类号 |
H01M10/05;H01M4/505;H01M4/525 |
主分类号 |
H01M10/05 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
