▎ 摘　　要

NOVELTY - A positive and negative electrode material preparing method involves dispersing graphene oxide/multi-walled carbon nanotube in deionized water, stirring, preventing graphene oxide fragmentation and centrifuging to obtain graphene oxide/multi-walled carbon nanotube mixed solution. The obtained solution is added with non-ionic surfactant and stirred to obtain the substrate solution, followed by dissolving aniline monomer with sulfuric acid, adding substrate solution, dissolving ammonium persulfate with sulfuric acid, transferring into separatory funnel, filtering, centrifuging and drying. USE - Method for preparing positive and negative electrode material that is utilized in high performance asymmetrical capacitor (claimed). ADVANTAGE - The method enables preparing positive and negative electrode material with better electrochemical performance, non-toxic, harmless and better application prospect, in a simple manner. DETAILED DESCRIPTION - A positive and negative electrode material preparing method involves dispersing 50-100 mg graphene oxide/multi-walled carbon nanotube in 50-100 ml deionized water, stirring, performing slight ultrasonic promoting, preventing graphene oxide fragmentation, centrifuging and taking supernatant to obtain graphene oxide/multi-walled carbon nanotube mixed solution. The obtained solution is added with 0.05-0.1 g non-ionic surfactant and stirred to dissolve to obtain the substrate solution, followed by dissolving 0.5-1 ml aniline monomer with 25-50 ml sulfuric acid, adding substrate solution to obtain growth solution, dissolving 1.25-2.5 g ammonium persulfate with 25-50 ml sulfuric acid, transferring into separatory funnel, adding 2-4 drops growth solution, maintaining temperature at 0-5 degrees C for 6-8 hours, filtering, centrifuging and drying to obtain ternary composite material powder. An INDEPENDENT CLAIM is also included for a positive and negative electrode material prepared by method.