▎ 摘　　要

NOVELTY - Preparing tin element composite tungsten disulfide/reduced graphene oxide composite electrode material involves dispersing reduced graphene oxide, tungsten hexachloride and thioacetamide uniformly in water to obtain a reaction liquid. The reaction solution is hydrothermally reacted and then cooled to obtain the product, the product is centrifuged and washed, and then the powder is collected by freeze drying to obtain a tungsten disulfide/reduced graphene oxide composite material, added polyvinylpyrrolidone, stannous chloride dihydrate, tungsten disulfide/reduced graphene oxide composite material and sodium borohydride to the water and uniformly dispersed to obtain a precursor liquid. USE - Method for preparing tin element composite tungsten disulfide/reduced graphene oxide composite electrode material used as a battery negative electrode material (claimed). ADVANTAGE - The method enables to prepare tin element composite tungsten disulfide/reduced graphene oxide composite electrode material has good dispersibility, uniform size, uniform shape, circulating for 200 circles at the current density of 200 mA-g-1, the capacity retention rate is 92%, reduces and growing tin nano particles on the tungsten disulfide nano sheet of tungsten disulfide/reducing graphene oxide composite material, enhances the conductivity of the final obtained tin elementary substance composite tungsten disulfide/reducing graphene oxide composite electrode material, so as to improve the electrochemical performance of the material. DETAILED DESCRIPTION - Preparing tin element composite tungsten disulfide/reduced graphene oxide composite electrode material involves dispersing reduced graphene oxide, tungsten hexachloride and thioacetamide uniformly in water to obtain a reaction liquid. The reaction solution is hydrothermally reacted and then cooled to obtain the product, the product is centrifuged and washed, and then the powder is collected by freeze drying to obtain a tungsten disulfide/reduced graphene oxide composite material, added polyvinylpyrrolidone, stannous chloride dihydrate, tungsten disulfide/reduced graphene oxide composite material and sodium borohydride to the water and uniformly dispersed to obtain a precursor liquid. The precursor liquid is centrifuged and washed and then freeze-dried to collect the powder to obtain a tin elemental composite tungsten disulfide/reduced graphene oxide composite material. The tin elemental composite tungsten disulfide/reduced graphene oxide composite material is calcined and annealed to obtain product.