| 摘要 |
PROBLEM TO BE SOLVED: To produce an active material with narrow particle size distribution and excellent crystallinity by using an aqueous solution in which a lithium compound, a transition metal compound, and an organic acid are mixed. SOLUTION: Production of a lithium battery's active material involves a dissolving process to produce a solution by mixing and dissolving A lithium compound and a transition metal compound with an organic acid represented by citric acid simultaneously having carboxyl group (-COOH) and hydroxyl group (-OH) in one molecule or an organic acid having at least two carboxyl groups or hydroxyl groups and a firing process to give an electrode active material for a battery by heating dew drops produced by spraying the solution. A cathode active material produced in this production method has excellent crystallinity, excellent battery properties, and thus a lithium battery having high power can be produced. It is preferable that the mole ion concentration ratio of Li and Mn as starting raw materials to synthesize the cathode active material is controlled to be 0.5<Li/Mn<=0.62. |
