▎ 摘　　要

NOVELTY - Preparing porous nitrogen doped carbon coated graphite material comprises (1) using melamine as nitrogen source, organic acid as carbon source, modified graphene as conductive bridge, mixing melamine, organic acid and modified graphene in solvent, adding graphite, and mixing uniformly to obtain wet slurry, and drying, and (2) grinding the mixed dry material in step (1) by sifting, transferring the material to rotary kiln, introducing inert atmosphere, heating to 100-500 degrees C, kept for 0.1-5 hours, the melamine reacts with the organic acid and the modified graphene to form functional structural components in situ, continuing to raise the temperature to 500-1000 degrees C, carbonizing for 0.5-24 hours, dispersing and sieving after cooling to obtain porous nitrogen-doped carbon-coated graphite material. USE - Used as preparing porous nitrogen doped carbon coated graphite material. ADVANTAGE - The method: is simple, economical and suitable for industrial production; improves circulation performance of the material, and multiplying power performance.