▎ 摘　　要

NOVELTY - A tungsten disulfide-coated molybdenum disulfide-carbon/reduced graphene oxide electrode material is a hollow spherical core-shell structure comprising heterostructure tungsten disulfide-coated molybdenum disulfide spherical particles as a core, graphene nanosheets for anchoring tungsten disulfide-coated molybdenum disulfide spherical particles, and a carbon layer coated outside the tungsten disulfide-coated molybdenum disulfide spherical particles as a shell. USE - Tungsten disulfide-coated molybdenum disulfide-carbon/reduced graphene oxide electrode material is used as cathode material in lithium-ion battery (claimed). ADVANTAGE - The tungsten disulfide-coated molybdenum disulfide-carbon/reduced graphene oxide electrode material is prepared by thermal solvothermal method with stable performance and excellent process repeatability, and has excellent rate capability and cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the tungsten disulfide-coated molybdenum disulfide-carbon/reduced graphene oxide electrode material, which involves dissolving tungsten hexachloride in a mixed solution comprising absolute ethanol and isopropanol, adding thioacetamide, stirring, carrying out solvothermal reaction, filtering, drying to obtain tungsten disulfide powder, dispersing the tungsten disulfide powder in water, adding sodium molybdate crystal and thiourea, adding graphene dispersion, hydrothermally reacting, filtering, drying to obtain tungsten disulfide-coated molybdenum disulfide-carbon/reduced graphene oxide powder, ultrasonically dispersing tungsten disulfide-coated molybdenum disulfide/reduced graphene oxide in tris(hydroxymethyl)aminomethane buffer, adjusting pH, adding dopamine hydrochloride, reacting under dark conditions, filtering, drying, and calcining in an argon-hydrogen atmosphere.