▎ 摘　　要

NOVELTY - A lithium ion supercapacitor cathode material preparing method involves mixing lithium carbonate and molybdenum trioxide, putting the mixture into a muffle furnace to react to obtain lithium molybdate material. The material is put into a hydrogen-nitrogen mixed atmosphere muffle furnace to react, followed by mixing oxidized graphite and lithium carbonate, mixing uniformly and placing the mixture under nitrogen protection in furnace to give graphene material containing lithium, mixing graphene material and the lithium molybdate material and grinding to obtain product. USE - Method for preparing lithium ion supercapacitor cathode material. ADVANTAGE - The method enables preparing lithium ion supercapacitor cathode material without need of complex lithium or a lithium intercalation process, in simple, easy and cost effective manner. DETAILED DESCRIPTION - A lithium alcohol based graphene composite cathode material preparing method involves mixing lithium carbonate and molybdenum trioxide, uniformly mixing, putting the mixture into a muffle furnace to react, and after the reaction is finished to obtain lithium molybdate material. The material is put into a hydrogen-nitrogen mixed atmosphere muffle furnace to react, followed by mixing oxidized graphite and lithium carbonate, mixing uniformly and placing the mixture under nitrogen protection in a muffle furnace to give graphene material containing lithium, mixing the graphene material and the lithium molybdate material at a mass ratio of 50-5:1, and grinding to obtain product. An INDEPENDENT CLAIM is also included for a method for preparing lithium ion supercapacitor.