▎ 摘　　要

NOVELTY - The method for dispersing and coating electrode material involves adding graphene oxide solution and electrode material to ball mill, ball milling and dispersing to obtain dispersed slurry, adding coagulating agent to the dispersed slurry, centrifuging, coagulating and drying to obtain composite material, drying composite material and then sintering in inert atmosphere. The coagulating agent is dopamine, diethylene glycol diacrylate, protonated chitosan, aqueous ammonia, protein, amino acid, pyridine, imidazole, quaternary phosphonium salt or quaternary ammonium salt. USE - The method is useful for dispersing and coating electrode material, which is useful in lithium ion battery cathode material (claimed). ADVANTAGE - The method is capable of dispersing and coating electrode material with excellent cycle stability and rate performance. DETAILED DESCRIPTION - The method for dispersing and coating electrode material involves adding 10-40 wt.% graphene oxide solution and 50-90 wt.% electrode material to ball mill, ball milling and dispersing to obtain dispersed slurry, adding coagulating agent to the dispersed slurry, centrifuging, coagulating and drying to obtain composite material, drying composite material and then sintering in inert atmosphere. The coagulating agent is dopamine, diethylene glycol diacrylate, protonated chitosan, aqueous ammonia, protein, amino acid, pyridine, imidazole, quaternary phosphonium salt or quaternary ammonium salt. The electrode material is silicon, phosphorus, silicon oxide, metal oxide or metal sulfide. The thickness of coating layer is 5-20 nm. The composite material has specific surface area of 3-50 g/cm3. An INDEPENDENT CLAIM is included for lithium ion battery cathode material, which is obtained by mixing composite material, conductive additive, binder and corresponding solvent, pulping, smearing and drying.