▎ 摘　　要

NOVELTY - A graphene electrode material preparing method involves weighing 30-45 pts. wt. graphene, 5-8 pts. wt. N-methyl butyl piperidine bis trifluoromethyl sulfide salt, 5-10 pts. wt. pentaethylene glycol, 10-15 pts. wt. polyacrylamide, 5-10 pts. wt. polypyrrole, 5-9 pts. wt. polystyrene and 3-8 pts. wt. adhesive. The graphene is added to concentrated sulfuric acid for oxidation to obtain a graphene oxide-based material. The graphene oxide-based material is added to N-methyl butyl piperidine bis trifluoromethyl sulfide salt, dimethyl carbonate and N,N dimethylformamide to obtain a graphene suspension. The graphene suspension is added to rare earth, polystyrene and magnesium hydroxide to the mixer. The graphene oxide material and stirred mixture is placed into an internal mixer, added with silica, starch octenyl aluminum succinate, silane coupling agent and adhesive and kneaded, followed by injecting the sprayed material into the muffle furnace to obtain the finished product. USE - Method for preparing graphene electrode material. ADVANTAGE - The method enables preparing graphene electrode material with excellent conductivity, high dielectric constant and better charge and discharge performance. DETAILED DESCRIPTION - A graphene electrode material preparing method involves weighing 30-45 pts. wt. graphene, 5-8 pts. wt. N-methyl butyl piperidine bis trifluoromethyl sulfide salt, 5-10 pts. wt. pentaethylene glycol, 10-15 pts. wt. polyacrylamide, 5-10 pts. wt. polypyrrole, 5-9 pts. wt. polystyrene, 7-15 pts. wt. polylactic acid-glycolic acid copolymer, 5-10 pts. wt. polybutanediol succinate, 4-9 pts. wt. dimethyl carbonate, 3-6 pts. wt. N,N-dimethylformamide, 1-3 pts. wt. manganese trifluoride, 4-7 pts. wt. dimethylacetamide, 2-5 pts. wt. magnesium hydroxide, 4-9 pts. wt. silica, 1-4 pts. wt. cyclohexanone, 3-6 pts. wt. starch octenyl aluminum succinate, 1-4 pts. wt. rare earth, 4-7 pts. wt. dispersant, 3-6 pts. wt. silane coupling agent and 3-8 pts. wt. adhesive. The graphene is added to concentrated sulfuric acid for oxidation to obtain a graphene oxide-based material, which is ultrasonically dispersed in the dispersant. The graphene oxide-based material is added to N-methyl butyl piperidine bis trifluoromethyl sulfide salt, dimethyl carbonate and N,N dimethylformamide to obtain a graphene suspension. The graphene suspension is added to rare earth, polyacrylamide, polypyrrole, polystyrene, polylactic acid-glycolic acid copolymer, polytetramethylene glycol succinate, manganese trifluoride, dimethylacetamide and magnesium hydroxide to the mixer, stirred evenly and adjusted the pH value to 3-5 with ammonia-water. The graphene oxide material, and stirred mixture is placed into an internal mixer, added with silica, cyclohexanone, starch octenyl aluminum succinate, silane coupling agent and adhesive and kneaded in a reducing gas atmosphere at 820-900 degrees C and cooled to 220 degrees C to obtain a mixture. The mixture is injected into a spray dryer and dried into a powder, followed by injecting the sprayed material into the muffle furnace and evenly coating on the treated electrode, lowering the temperature to 280 degrees C and filling with reducing gas protection to obtain the finished product.