▎ 摘　　要

NOVELTY - Preparation of cathode material involves adding sodium molybdate, sodium tungstate and thiourea to graphene oxide solution, stirring, hydrothermally reacting at 70-200 degrees C for 5-20 hours to obtain tungsten disulfide/molybdenum disulfide-graphene composite and drying, mixing and fusing tungsten disulfide/molybdenum disulfide-graphene composite with carbon precursor powder, carbonizing the fused material, cooling and sieving to form carbon-doped tungsten disulfide/molybdenum disulfide-graphene as cathode material. USE - Preparation of cathode material of sodium-ion battery (claimed). ADVANTAGE - The prepared cathode material has excellent electrochemical activity, sodium adsorption rate, more ion storage sites, low volume expansion and no sulfide aggregation due to use of the graphene, and laminar microstructure, and enables intercalation/deintercalation of large amount of sodium ions deintercalation, thereby improving charge and discharge performance.