FIELD: chemistry; electric elements.
SUBSTANCE: invention relates to electrochemical power engineering and can be used in production of lithium-ion batteries. Said problem is solved by the disclosed lithium cobaltate reduction method. Method for recovery of cathode material of lithium-ion accumulator includes calcination and grinding of cathode material. Used lithium cobaltate as a cathode material is calcined at temperature of 700-720 °C for 4.5-5 hours, and grinding is carried out in a ball mill for 2.5-3 hours, then screening is carried out through a set of sieves with selection of fraction of 10-15 mcm.
EFFECT: possibility of regenerating lithium cobaltate, which enables to achieve specific capacity of the electrode based on it of not less than 150 mAh/g after long-term storage or contact with an atmosphere of high humidity.
1 cl, 3 dwg, 1 tbl
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