▎ 摘　　要

NOVELTY - Preparation of copper molybdate-graphene composite material involves dissolving ammonium molybdate tetrahydrate and copper acetate dihydrate in 0.001-0.005 mol/l sodium hydroxide aqueous solution, in the mol ratio of 1-3:1, hydrothermally reacting, centrifuging, washing and drying to obtain ammonium molybdate-copper nanoparticles, preparing 0.5-1 mol/l graphene oxide aqueous solution, adding the nanoparticles, ultrasonically processing the mixture, distilling the product, drying, and calcining the obtained product in argon gas atmosphere. USE - Preparation of copper-molybdate-graphene composite material used as cathode material of lithium ion battery (all claimed). ADVANTAGE - The method produces composite material capable of providing batteries having initial coulombic efficiency of 94%, coulombic efficiency of 99%, reversible specific gravity of 800 mAh/g or more, and charging/discharging cycle time of 64 times or more. The preparation is simple, and carried out using easily available raw materials.