METHOD TO PRODUCE CATHODE MATERIAL FOR LITHIUM-ION BATTERIES Russian patent published in 2012 - IPC H01M4/52 

FIELD: electricity.

SUBSTANCE: method to produce a cathode material with the following composition: LiNi_1/3Co_1/3Mn_1/3O₂, for lithium - ion batteries includes heating of an initial mixture of nitrates of appropriate metals and a gelling agent with subsequent drying and calcinations of the powder produced after heating of the initial mixture. The gelling agent is glycine in the amount of 280-500 g per 1000 g of nonaqueous nitrates of cobalt, manganese and nickel taken at the ratio of Mn⁺²:Co⁺²:Ni⁺², equal to 1:1:1; and the lithium nitrate is introduced by impregnating a powder with it produced after heating and drying of an initial mixture.

EFFECT: possibility to control size of active material particles in the required working range together with preservation of an oval shape of the particles and their normal distribution.

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