▎ 摘　　要

NOVELTY - A nitrogen doped-electrode material comprises 2-3 pts. wt. graphene oxide, 1-2 pts. wt. lithium iron phosphate, 1-2 pts. wt. ferric nitrate, 1-2 pts. wt. bismuth hydroxide, 2-3 pts. wt. chromium diboride, modified polyvinyl chloride (PVC)-based activated coal, distilled water, triallyl cyanurate and styrene-butadiene rubber, where the modified PVC-based activated coal comprises sodium metasilicate, precipitated silica, methyltriethoxysilane, zirconium fluoride, zinc stearate, titanium tetrachloride, iron trifluoride, PVC waste material, potassium dichromate, and ammonia water. USE - Nitrogen doped-electrode material for use in supercapacitor. ADVANTAGE - The nitrogen doped-electrode material has high volume ratio, high surface area and good conductivity, can be prepared simply, and prepares supercapacitor with good charge and discharge circuit stability, high specific power and high specific energy value. DETAILED DESCRIPTION - A nitrogen doped-electrode material comprises 2-3 pts. wt. graphene oxide, 1-2 pts. wt. lithium iron phosphate, 1-2 pts. wt. ferric nitrate, 1-2 pts. wt. bismuth hydroxide, 2-3 pts. wt. chromium diboride, 100-120 pts. wt. modified polyvinyl chloride (PVC)-based activated coal, 8-16 pts. wt. distilled water, 1-2 pts. wt. triallyl cyanurate and 1-2 pts. wt. styrene-butadiene rubber, where the modified PVC-based activated coal comprises 1-2 pts. wt. sodium metasilicate, 2-3 pts. wt. precipitated silica, 2-3 pts. wt. methyltriethoxysilane, 1-2 pts. wt. zirconium fluoride, 1-2 pts. wt. zinc stearate, 2-3 pts. wt. titanium tetrachloride, 1-2 pts. wt. iron trifluoride, 400-500 pts. wt. PVC waste material, 20-30 pts. wt. potassium dichromate, and 40-60 pts. wt. ammonia water, and the modified PVC-based activated coal is prepared by crushing PVC waste into particles uniformly, paving the particles on ceramic, maintaining the particles at 5 degrees C for 2-3 hours, mixing the PVC particles and potassium dichromate uniformly, putting the mixture into sintering furnace at 300-350 degrees C, heating the mixture to 600-700 degrees C to obtain activated coal, cooling the mixture naturally to room temperature, adding activated coal, methyltriethoxysilane, sodium metasilicate and remaining raw materials to the mixture, heating the mixture to 80-90 degrees C for 20-40 minutes, adding ammonia water to the mixture, controlling pressure for 2-3 hours, and ball-milling and drying the mixture at 100-120 degrees C and 2-3 MPa to obtain 200-400-meshes powder. An INDEPENDENT CLAIM is also included for a method for producing the nitrogen doped-electrode material, which involves mixing distilled water, styrene-butadiene rubber and modified PVC-activated coal uniformly, heating the mixture to 50-60 degrees C to obtain slurry, spray-drying the slurry, adding triallyl cyanurate and remaining raw materials to the slurry, grinding the mixture, putting the mixture into tubular furnace, introducing pure ammonia gas into the furnace, and annealing the mixture at 400-600 degrees C for 2-4 hours to obtain finished product.