▎ 摘　　要

NOVELTY - Regenerating graphite material comprises (i) sieving waste lithium ion battery cathode graphite material to obtain graphite powder with grain diameter of not greater than 50 mu m; (ii) dispersing graphene oxide in water to obtain graphene oxide solution; (iii) mixing and stirring graphite powder and graphene oxide solution in graphene oxide at the mass ratio of 1:0.01-0.1, then filtering to obtain graphene oxide coated graphite material; and (iv) calcining the graphite material coated by graphene oxide in oxygen-free environment. USE - The graphite material is used as cathode material for lithium-ion batteries (claimed). ADVANTAGE - The graphite material: uses graphene to coat the waste graphite material, and graphene can fill up the defects on the surface of the waste graphite material, and improves the electrical properties, namely the first coulomb efficiency and cycle performance of the regenerated graphite as the cathode material of the lithium ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene coated graphite material, is obtained by the method.