▎ 摘　　要

NOVELTY - Coating and modifying lithium ion battery cathode material comprises (i) dissolving phenolic resin in an organic solvent to obtain coating agent 1, where the coating agent 1 is evenly mixed with graphite, and carbonizing under protection of nitrogen atmosphere to obtain primary coated graphite; and (ii) dissolving the asphalt in an organic solvent to obtain asphalt mixture, and mixing the graphene conductive slurry with the asphalt mixture uniformly, obtaining the coating agent 2, fully mixing the coating agent 2 and the primary coated graphite uniformly, and carbonizing under the protection of nitrogen atmosphere. USE - The method is useful for coating and modifying lithium ion battery cathode material. ADVANTAGE - The method requires less device, is simple and convenient for large-scale production. The material has high compaction density, excellent rate performance and cycle performance, and field of fast-charging batteries has high application value.