▎ 摘　　要

NOVELTY - A spongy graphene/nickel cobalt sulfide composite material preparing method involves weighing graphene oxide and sodium dodecylbenzenesulfonate, dissolving in deionized water, mixing and ultrasonicating to obtain a mixed solution, weighing sulfur and dispersing ultrasonically in n-octane to obtain a n-octane mixture, adding the n-octane mixture to the mixed solution and stirring magnetically to obtain a mixture, weighing nickel nitrate and cobalt nitrate, dissolving in deionized water, adding dropwise to the mixture and stirring magnetically to obtain a stirred solution. The stirred solution is transferred to Teflon (RTM: PTFE) lined stainless steel high-pressure reaction vessel, and the vessel is placed on the oil bath for reaction and stirred magnetically to obtain a product. The product is naturally cooled to room temperature, centrifuged, washed, vacuum dried and calcined the product to obtain the finished product. USE - Method for preparing spongy graphene/nickel cobalt sulfide composite material. ADVANTAGE - The method enables preparing spongy graphene/nickel cobalt sulfide composite material with large specific surface area and improved electrochemical performance.