▎ 摘　　要

NOVELTY - A graphene-tin dioxide composite material preparing method involves dispersing 150-200 pts. vol. solvent uniformly in 0.3-0.5 mass parts graphene oxide and adding 1-1.5 mass parts tin dichloride and 0.4-0.6 mass parts sodium dodecyl benzene sulfonate for carrying out reaction at room temperature of 20-25 degrees C or 30-80 degrees C for 2-12 hours to obtain a dispersed product. The dispersed product is dried and calcined at 500-600 degrees C for 4-6 hours in an inert atmosphere to obtain the finished product. USE - Method for preparing graphene-tin dioxide composite material for use in energy storage (claimed). ADVANTAGE - The method enables preparing graphene-tin dioxide composite material with excellent electrochemical performance and good application prospect, in simple and effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for utilization of graphene-tin dioxide composite material in energy storage.