▎ 摘　　要

NOVELTY - A pore-reducing graphene oxide-based lithium-sulfur battery comprises lithium metal sheet as a negative electrode, graphitized reduction graphene oxide as a self-supporting material and as a positive electrode, Celgard (RTM: Polypropylene film) 2400 as a separator, negative electrode electrolyte and positive electrode electrolyte, where the negative electrode electrolyte comprises mixed solution of 1,3-dioxolane and ethylene glycol dimethyl ether at an equal volume ratio, 1 mol/l solute bistrifluoromethane sulfonimide lithium and 4 wt.% lithium nitrate, the positive electrode electrolyte is a mixed solution of 1,3-dioxolane and ethylene glycol dimethyl ether at an equal volume ratio, 1 mol/l solute bistrifluoromethanesulfonate lithium imide, 4 wt.% lithium nitrate and 0.2-0.5 mol/l lithium sulfide. USE - Pore-reducing graphene oxide-based lithium-sulfur battery. ADVANTAGE - The pore-reducing graphene oxide-based lithium-sulfur battery has increased specific surface area, increased active material reaction site and improved electrochemical performance. DETAILED DESCRIPTION - A pore-reducing graphene oxide-based lithium-sulfur battery comprises lithium metal sheet as a negative electrode, graphitized reduction graphene oxide as a self-supporting material and as a positive electrode, Celgard (RTM: Polypropylene film) 2400 as a separator, negative electrode electrolyte and positive electrode electrolyte, where the negative electrode electrolyte comprises mixed solution of 1,3-dioxolane and ethylene glycol dimethyl ether at an equal volume ratio, 1 mol/l solute bistrifluoromethane sulfonimide lithium and 4 wt.% lithium nitrate, the positive electrode electrolyte is a mixed solution of 1,3-dioxolane and ethylene glycol dimethyl ether at an equal volume ratio, 1 mol/l solute bistrifluoromethanesulfonate lithium imide, 4 wt.% lithium nitrate and 0.2-0.5 mol/l lithium sulfide, and the graphitized reduction graphene oxide is prepared by placing the graphene oxide dispersion by the Hummers method in a hydrothermal kettle, adding an aqueous solution of hydrogen peroxide, heating to 160-200 degrees C for 1-6 hours to carry out water thermal reaction, in which the graphene oxide is reduced and self-assembled into a cylindrical three-dimensional graphene material, perforating hydrogen peroxide on the cylindrical three-dimensional graphene material, washing with deionized water after the hydrothermal reaction is completed, and allowing to lyophilization for forming a mesopores on the graphene material surface.