Method for repairing and regenerating nickel cobalt manganese ternary positive electrode material in waste battery

The invention provides a method for repairing and regenerating a nickel cobalt manganese ternary positive electrode material in a waste battery. The method comprises the following steps: splitting an positive electrode material from a lithium cobalt oxide waste battery; laying the ternary positive electrode material on a mesh belt, controlling the mesh belt to continuously vibrate, and controlling gas to pass through meshes of the mesh belt from bottom to top; under the conditions that the mesh belt vibrates and gas flows through the meshes of the mesh belt, respectively heating a ternary positive electrode slice at the temperature of 100 to 300 DEG C and the temperature of 380 to 520 DEG C for 10 to 60 minutes, and collecting ternary positive electrode material powder I; sequentially sieving the ternary positive electrode material powder I to remove a broken aluminum foil and performing electromagnetic iron removal on the ternary positive electrode material powder I to obtain ternary positive electrode material powder II, and performing ball milling on the ternary positive electrode material powder II to obtain ternary positive electrode material powder III; dissolving aluminum powder by the ternary positive electrode material powder III under the condition of weak acid, corroding the surface of the ternary positive electrode material to form the ternary positive electrode material with high activity and high dispersity, and synthesizing and repairing the ternary positive electrode material serving as a nucleating agent to obtain a spherical ternary precursor material with uniform particles. The size mixing and coating properties and electrochemical properties of the spherical ternary precursor material prepared by the method provided by the invention are repaired.