▎ 摘　　要

NOVELTY - A self-supporting and pore-reducing graphene oxide material is prepared by placing the graphene oxide dispersion prepared by the Hummers method in a hydrothermal kettle, adding an aqueous solution of hydrogen peroxide to raising the temperature to 160-200 degrees C is incubating for 1-6 hours for hydrothermal reaction, reducing graphene oxide and self-assembled into a cylindrical three-dimensional graphene material, punching hydrogen peroxide on the cylindrical three-dimensional graphene material, after the hydrothermal reaction is completed, after deionized water washing and lyophilization, where the specific surface area of the graphene material after perforation and lyophilization by hydrogen peroxide is 1500-1600 m2/g, mesopores are formed on the graphene material and a wide pore size distribution in the range of 0.6-5.0 nm. USE - Self-supporting and pore-reducing graphene oxide material. ADVANTAGE - The self-supporting and pore-reducing graphene oxide material has increased specific surface area and reaction site ad enhanced electrochemical performance of lithium-sulfur battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a self-supporting and pore-reducing graphene oxide material.