| 发明名称 |
Verfahren zur Herstellung von aktivem Kathodenmaterial für Lithium-Sekundärbatterie |
| 摘要 |
In a method of producing active cathode material for lithium secondary battery according to this invention, mixture of lithium salt and transition metal salt is baked in oxygen atmosphere, and in synthesizing lithium transition metal compound oxide having composition of LixNiyM1-yO2 (M is one kind of transition metal or more, and x and y are respectively expressed as 0.05 </= x </= 1.10, 0.5 </= y </= 1.0), oxygen pressure in the atmosphere in baking is set to 147.1 kPa or more at least at a certain time of baking process. Thus, in accordance with the method of producing active cathode material for lithium secondary battery according to this invention, it is possible to provide lithium transition metal compound oxide which is uniform in composition and characteristic, and exhibits excellent function as active cathode material. Accordingly, when cathode is constituted by using lithium transition metal compound oxide synthesized in this way as active cathode material, it is possible to provide a lithium secondary battery which is excellent in cycle characteristic, has high energy density and low material cost, and has uniform quality of no unevenness of battery capacity. <IMAGE> |
| 申请公布号 |
DE69408286(T2) |
申请公布日期 |
1998.08.27 |
| 申请号 |
DE1994608286T |
申请日期 |
1994.10.26 |
| 申请人 |
SONY CORP., TOKIO/TOKYO, JP |
发明人 |
YAMAMOTO, YOSHIKATSU, C/O SONY ENERGYTEC INC., KORIYAMA, FUKUSHIMA-KEN, JP |
| 分类号 |
H01M10/05;C01B31/02;C01B31/04;H01M4/525 |
主分类号 |
H01M10/05 |
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