▎ 摘　　要

NOVELTY - Supercapacitor electrode material comprises carbon material substrate, graphene, carbon nanotubes, activating agent, agglomerant-forming agent, carbon fiber and metal salt solution. The carbon substrate is made of biomass raw materials carbonized to obtain biomass activated carbon powder A. The graphene and carbon nanofiber are mixed by dilute acid to obtain a dispersion liquid B. The activating agent is potassium hydroxide, sodium chloride, potassium chloride, sodium bicarbonate, ammonium carbonate, potassium oxalate and/or ammonium chloride. The agglomers are water-soluble type agglerant, hot melt type agglers, solvent-type agglers and/or emulsion-type bonding agents. The adhesive is polytetrafluoroethylene dispersion solution, polyvinylidene fluoride and/or polyvinanol. The pore-forming agent is sodium chloride, potassium chloride, sodium bicarbonate, ammonium carbonate, potassium bicarbonate, and/or ammonium bicarbonate. USE - Super capacitor electrode material for super capacitor used in electric automobile and aerospace field used in rechargeable battery, and lithium-ion battery, etc. ADVANTAGE - The electrode material has better conductivity, binding activator, agglomerant-forming agent, carbon fiber and metal salt solution, improving electrode material surface hole diameter distribution, based on carbon material as matrix composite material not only increases the effective utilization of the active material, but also increases the conductivity of the composite material and mechanical strength performance of composite material, the specific surface area of the electrode material is larger, the larger the capacity, and carbon fiber belongs to high-efficiency adsorbent material, because the surface carbon atom of unsaturated, has adsorption performance of active carbon, using high density of high-conductivity carbon fiber as cathode active substance, and the prepared super capacitor of coulomb efficiency is improved, by adding fine carbon fiber to improve the charge and discharge capacity improving the electrode plate strength. DETAILED DESCRIPTION - Supercapacitor electrode material comprises carbon material substrate, graphene, carbon nanotubes, activating agent, agglomerant-forming agent, carbon fiber and metal salt solution. The carbon substrate is made of biomass raw materials carbonized to obtain biomass activated carbon powder A. The graphene and carbon nanofiber are mixed by dilute acid to obtain a dispersion liquid B. The activating agent is potassium hydroxide, sodium chloride, potassium chloride, sodium bicarbonate, ammonium carbonate, potassium oxalate and/or ammonium chloride. The agglomers are water-soluble type agglerant, hot melt type agglers, solvent-type agglers and/or emulsion-type bonding agents. The adhesive is polytetrafluoroethylene dispersion solution, polyvinylidene fluoride and/or polyvinanol. The pore-forming agent is sodium chloride, potassium chloride, sodium bicarbonate, ammonium carbonate, potassium bicarbonate, and/or ammonium bicarbonate. The metal salt solution is mixed solution salt solution of nickel, manganese, cobalt, aluminum, zirconium, magnesium, tungsten, titanium and/or iridium. An INDEPENDENT CLAIM is also included for a preparation method of super capacitor electrode material. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of a super capacitor electrode material and a preparation method. (Drawing includes non-English language text).