发明名称 GRAIN SIZE CONTROLLING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL COBALT LITHIUM OXIDE FOR LITHIUM ION SECONDARY CELL
摘要 PROBLEM TO BE SOLVED: To provide the method capable of obtaining a cobalt lithium oxide having a prescribed grain size by a simple method without needing another screening stage, etc., after grinding the oxide in the production method of the cobalt lithium oxide by burning and grinding the mixture of cobalt oxide and lithium carbonate. SOLUTION: The mixture of the cobalt oxide and the lithium carbonate is burned under condition of a mixing molar ratio (Li/Co) of 0.95-1.2, 900-1100 deg.C burning temp. (T), (0.0275T-23.0) to (0.0225T-191.33) μm average grain size of burning reaction product, then the burned matter is ground.
申请公布号 JPH10279316(A) 申请公布日期 1998.10.20
申请号 JP19970099679 申请日期 1997.04.02
申请人 NIPPON CHEM IND CO LTD 发明人 YAMAZAKI NOBUYUKI;NEGISHI KATSUYUKI;KIMURA SHIGEYASU
分类号 C01G51/00;H01M4/525;H01M10/05 主分类号 C01G51/00
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