| 摘要 |
The present invention provides a method for efficiently producing, by a short process, a lithium cobalt-containing complex oxide, which can be used under a high voltage and has excellent cell performance, including discharge capacity, average discharge voltage, stability, volume capacity density, and charge-discharge cycle durability, and with which the cell expansion that accompanies charging and discharging is controlled. A starting powder comprising a cobalt compound and a lithium compound at a predetermined ratio is precalcined at 300 to 600ºC to obtain a precalcined powder and then this precalcined powder is mixed with an acid that will react with lithium atoms, or a salt of this acid and a volatile base and the resulting mixture is calcined at 720 to 1,100ºC. |
