▎ 摘　　要

NOVELTY - Coating material comprises a conductive polymer, graphene or carbon nanotube composite, and a hydrogen-containing lithium titanate compound and iron (III) fluoride dispersed in situ on surface of composite. The coating material is a three-dimensional nano-network layered structure. USE - Coating material used for coating positive electrode material or a negative electrode material for lithium ion batteries (claimed). ADVANTAGE - The coating material greatly improves conductivity of the electrode material, discharge specific capacity, coulomb efficiency, cycle stability, service life and broad application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing coating material, which involves: (A) mixing graphene oxide with a surfactant ultrasonically; (B) mixing with a reducing agent to perform chemical reduction to obtain reduced graphene that forms micelles between graphene layers; (C) dispersing the reduced graphene in a solvent under sonication; (D) adding conductive polymer monomer under continue sonication; and (E) adding initiator, carbon nanotubes, hydrogen-containing lithium titanyl oxide and iron (III) fluoride for polymerization reaction to obtain the coating material.