▎ 摘　　要

NOVELTY - Producing graphene/titanium dioxide hollow sphere/sulfur composite material, comprises (i) adding graphene into aqueous solution, implementing ultrasonic dispersion to form suspension, (ii) adding titanium sulfate and ammonium chloride into suspension, mixing, implementing hydrothermal reaction, cooling reactant, filtering, washing with water and ethanol, and drying to obtain hollow graphene/titanium dioxide composite, and (iii) adding composite and elemental sulfur into carbon disulfide, implementing ultrasonic dispersion to form suspension, and evaporating solvent. USE - The method is useful for producing graphene/titanium dioxide hollow sphere/sulfur composite material (claimed). ADVANTAGE - The composite material inhibits dissolution of polysulfide from the discharge product and mitigates volume expansion, and has improved electrochemical performance. DETAILED DESCRIPTION - Producing graphene/titanium dioxide hollow sphere/sulfur composite material, comprises (i) adding graphene into aqueous solution and implementing ultrasonic dispersion to form a suspension, (ii) sequentially adding titanium sulfate and ammonium chloride into the suspension, uniformly mixing the resultant, adding the resultant into a hydrothermal kettle to implement a hydrothermal reaction, naturally cooling the reactant, filtering, washing with water, washing with ethanol, and drying to obtain a hollow graphene/titanium dioxide composite material, and (iii) adding the composite material and elemental sulfur into carbon disulfide, implementing ultrasonic dispersion to form a suspension, and evaporating the solvent to obtain a graphene/titanium dioxide hollow sphere/sulfur composite material.