▎ 摘　　要

NOVELTY - A graphene-metal oxide electrode material preparing method involves mixing graphene, dispersant and dilute sulfuric acid solution, homogenizing and dispersing to prepare a graphene emulsion. The graphene emulsion is sprayed on the surface of the polyethylene film to form a graphene surface layer. The graphene surface layer is dried, followed by spraying the metal mixture on the graphene surface film at a high speed to form composite film material, and drying the composite film material by argon gas to obtain the finished product. USE - Method for preparing graphene-metal oxide electrode material. ADVANTAGE - The method enables preparing graphene-metal oxide electrode material with good performance, good application prospect, and improved bending strength and fracture toughness. DETAILED DESCRIPTION - A graphene-metal oxide electrode material preparing method involves mixing graphene, dispersant and 7.5% dilute sulfuric acid solution, homogenizing and placing in an ultrasonic disperser for ultrasonic dispersion for 2-4 hours to prepare a graphene emulsion. The graphene emulsion is sprayed on the surface of the polyethylene film to form a graphene surface layer. The graphene surface layer is dried by argon gas, followed by mixing 2-3 parts magnesium powder, 1-2 parts nickel oxide, 2-3 parts magnesium carbonate, 1-2 parts copper powder, 1-3 parts titanium dioxide and 1-3 parts tri-n-octylphosphine oxide, adding into pipe type reaction furnace heating refining at 750-760 degrees C, adding 4-5 parts acetone aldehyde and pressurizing to 2.5 MPa for 5 hours to obtain metal mixture, spraying the metal mixture on the graphene surface film at a high speed to form composite film material, and drying the composite film material by argon gas to obtain the finished product.