▎ 摘　　要

NOVELTY - Manufacture of quick charging and discharging graphene lithium iron phosphate lithium ion battery involves vacuum-baking anode material and binder, mixing polyvinylidene fluoride and N-methyl-2-pyrrolidone, high-speed dispersing, adding conductive agent, graphene slurry and lithium iron phosphate anode material, mixing carboxymethyl cellulose and water, high-speed dispersing, adding conductive agent, graphite powder and styrene-butadiene rubber, coating aluminum foil with anode solution, coating copper foil with cathode solution, stacking or coiling anode, cathode and membrane and filling. USE - Method for manufacturing quick charging and discharging graphene lithium iron phosphate lithium ion battery. ADVANTAGE - The battery has reduced internal resistance and improved power charging and discharging performance. DETAILED DESCRIPTION - Manufacture of quick charging and discharging graphene lithium iron phosphate lithium ion battery comprises: (A) vacuum-baking anode material and binder in vacuum oven at 100-120 degrees C for not less than 4 hours, mixing polyvinylidene fluoride and N-methyl-2-pyrrolidone, high-speed dispersing at speed of 3000-4000 revolutions/minute for 2-3 hours, adding conductive agent and graphene slurry, stirring, adding lithium iron phosphate anode material, stirring at speed of 3000-4000 rpm for 1-3 hours, adding N-methyl-2-pyrrolidone solvent and adjusting viscosity to obtain anode solution; (B) mixing carboxymethyl cellulose and water, high-speed dispersing at speed of 3000-4000 rpm for 1.5-3 hours, adding conductive agent, stirring, graphite powder and styrene-butadiene rubber, stirring for more than 0.5 hour, adding water and adjusting viscosity to prepare cathode solution; (C) uniformly coating aluminum foil with anode solution with thickness of 0.010-0.030 mm, drying at 80-150 degrees C, pressure rolling at 300-500 tons, cutting into pieces to prepare anode plate, uniformly coating copper foil with cathode solution with thickness of 0.009-0.012 mm, drying at 80-150 degrees C, pressure rolling at 300-500 tons and cutting into pieces to prepare cathode plate; and (D) stacking or coiling anode, cathode and membrane, packing in metal can, plastic shell or plastic film, filling electrolyte, mechanically sealing and grading.