▎ 摘　　要

NOVELTY - Preparing lithium cobalt phosphate by using waste cobalt oxide involves mixing waste lithium-cobaltate material with water to obtain cobaltate slurry, adding acid and reducing agent, reacting at 20-80 degreesC for 1-5 hours, filtering to obtain a first filtrate, slowly adding phosphate solution to the first filtration solution, when the supernatant liquid layer of the solution is white, stopping the addition of phosphate solution, stirring for 1-4 hours, filtering to obtain first filter residue, mixing the first filter residue, lithium source, carbon source, sand grinding, and drying to obtain powder, and calcining the powder under the nitrogen atmosphere, crushing the sintering material, sieving, and removing iron to obtain the cobalt-copper phosphate lithium. USE - Method for preparing lithium cobalt phosphate. ADVANTAGE - The preparation method uses less raw material, the obtained anode material is mixed uniformly, and it overcomes the problem that the conventional recycling cobalt phosphate lithium material has bad cycle performance.