▎ 摘　　要

NOVELTY - A nitrogen-doped graphite alkene composite electrode material preparing method involves obtaining oxidation graphene concentration by adding oxidation graphite powder with deionized water. Carbon dioxide concentration is obtained by adding cobalt acetic acid to the obtained oxidation graphene concentration, followed by placing a reaction kettle containing reaction solution in water bath and obtaining product by heating and cooling the water bath. Product mixed liquid is obtained by cleaning an anhydrous ethyl alcohol with the deionized water and drying the alcohol after freezing the alcohol. USE - Method for preparing nitrogen-doped graphite alkene composite electrode material. ADVANTAGE - The method enables preparing nitrogen-doped graphite alkene composite electrode material with optimizing performance by charging and discharging circulation capacity to 94.2%. The method enables simplifying operation with low cost and easy control. DETAILED DESCRIPTION - A nitrogen-doped graphite alkene composite electrode material preparing method involves obtaining 0.5-4.0 mg/ml oxidation graphene concentration by adding 0.05-0.4 g oxidation graphite powder with 100 ml deionized water. 1-16 mm Carbon dioxide concentration is obtained by adding 8.75-14 mg cobalt acetic acid to the obtained oxidation graphene concentration, followed by stirring ammonia water by regulating pH value of 8.0-11 for 40 minutes, placing a reaction kettle containing reaction solution in 35 ml water bath after transferring 50 ml reaction solution to the reaction kettle, obtaining product by heating the water bath containing reaction solution at 100-240 degrees C low temperature for 4-16 hours, and cooling the water bath containing reaction solution by a centrifugal separation. Product mixed liquid is obtained at 70-85 degrees C under water bath condition by cleaning an anhydrous ethyl alcohol with the deionized water for 3-5 times, and drying the alcohol for 5-24 hours after freezing the alcohol.