▎ 摘　　要

NOVELTY - The method for producing nitrogen-fully doped carbon-self-coated semiconductor metal oxide and graphene composite electrode material, involves ultrasonically dispersing graphene oxide in organic solvent to obtain oxide graphene dispersion, mixing organic solvent and glycerol to obtain homogeneous mixed solution, adding metal salt, stirring, adding oxidized graphene dispersion, crystallizing, washing with absolute ethanol, drying to obtain organic metal compound and graphene composite powder, calcining in mixed atmosphere of nitrogen and ammonia to obtain final product. USE - Method for producing nitrogen-fully doped carbon-self-coated semiconductor metal oxide and graphene composite electrode material for preparing lithium ion battery. ADVANTAGE - The method enables simple production of nitrogen-fully doped carbon-self-coated semiconductor metal oxide and graphene composite electrode material. DETAILED DESCRIPTION - Method for producing nitrogen-fully doped carbon-self-coated semiconductor metal oxide and graphene composite electrode material, involves ultrasonically dispersing 20-100 mg graphene oxide in 15-40 ml organic solvent for 30-120 minutes to obtain oxide graphene dispersion, mixing 5-15 ml organic solvent and 5-20 ml glycerol, stirring for 15-60 minutes to obtain homogeneous mixed solution, adding 0.4-2.0 g metal salt to homogeneous mixed solution, stirring for 10-60 minutes, rapidly adding oxidized graphene dispersion, stirring for 10-60 minutes, feeding the obtained solution to reaction vessel, crystallizing under constant temperature, centrifuging the reaction solution, repeatedly washing the solid product with absolute ethanol, drying in air at 60-120 degrees C for 12-48 hours to obtain organic metal compound and graphene composite powder, calcining the raw powder in mixed atmosphere of nitrogen and ammonia to obtain nitrogen-fully doped carbon self-coated semiconductor metal oxide and graphene composite electrode material.