The invention discloses a recycling method for a
lithium cobaltate positive
electrode material of a
lithium ion battery. The recycling method comprises the following steps of: discharging a waste
lithium cobaltate battery to obtain a positive
electrode material of the battery; soaking and treating the positive
electrode material in N-methyl pyrrolidone to obtain precipitates, and
sintering the precipitates to obtain LiCoO2
powder; enabling the
powder to react with a natural
organic acid solution to obtain leach liquor containing Li<+> and Co<2+>; adding
thiourea into the leach liquor to perform
hydrothermal reaction; and performing
centrifugal separation on products of the
hydrothermal reaction and washing the precipitates,
drying the products to obtain CoS crystals, collecting and filtering liquid supernatant to obtain filtrate, and adding saturated Na2CO3 into filtrate to react, thereby obtaining a Li2CO3 material. The recycling method disclosed by the invention can adopt relatively less chemical preparations, is simple in operation step, is high in
recovery rate of lithium cobaltate, can realize electrochemical property cyclic regeneration of the waste battery positive
electrode material, is obvious in effect, and is simple and easy to implement.