METHOD FOR RECOVERING LITHIUM BATTERY POSITIVE ELECTRODE PLATE

Disclosed in the present invention is a method for recovering a lithium battery positive electrode plate. A method for recovering a lithium battery positive electrode plate. The method comprises the following steps: S1. reacting a positive electrode plate material with a metal salt in an aqueous solution, wherein the standard electrode potential of metal in the metal salt is higher than that of aluminum; S2. dissolving and soaking a solid obtained in step S1 with a mixed solution of an acid and a reducing agent; and S3. subjecting a leachate obtained in step S2 to a fluorine removal treatment, then extracting a transition metal in the leachate, and precipitating and separating lithium from the raffinate. In the method for recovering a lithium battery positive electrode plate of the present invention, aluminum impurities in the positive electrode plate material and fluorine impurities in the leachate can be thoroughly removed by means of the cooperation of all the steps and the raw materials used; in addition, it is guaranteed that the loss rate of valuable metal in the positive electrode plate material is ≤ 0.1%.