▎ 摘　　要

NOVELTY - Titanium dioxide composite material comprises graphene used as a core material, and titanium dioxide containing a pore structure used as a shell material to be compounded. USE - Titanium dioxide composite material as an energy storage material, or a negative electrode material for an ion battery in particular a lithium-ion battery or a sodium ion battery (all claimed). ADVANTAGE - The titanium dioxide composite material has high temperature resistance, oxidation resistance, high strength, and good electrical and thermal conductivity of graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing titanium dioxide composite material, which involves: (1) mixing melamine and formaldehyde, carrying out primary heating reaction to obtain a prepolymer methyl melamine, then transferring the prepolymer methyl melamine into an acidic polyvinyl alcohol aqueous solution dispersed with graphene, carrying out secondary heating reaction, drying and crushing to obtain graphene/melamine formaldehyde composite particles; (2) uniformly mixing the graphene/melamine formaldehyde composite particles and a surfactant in a solvent, and adjusting the pH value to be alkaline to obtain a mixed solution; (3) adding a titanium source solution into the mixed solution under the stirring condition, stirring, centrifuging and drying to obtain a product; (4) calcining the product in an inert atmosphere.