▎ 摘　　要

NOVELTY - Preparation of nitrogen-doped graphene granules, involves preparing graphene oxide suspension, shear-emulsifying graphene oxide suspension at high speed, preparing nitrogen-doped graphene particles, spray-drying at inlet temperature of 150-350 degrees C and outlet temperature of 100-200 degrees C, and treating at high temperature in nitrogen gas atmosphere. USE - Preparation of nitrogen-doped graphene granules (claimed). ADVANTAGE - The method uses easy-to-control conditions, is simple, and has strong operability and repeatability. The method enables preparation of nitrogen-doped graphene granules with small grain diameter, large specific surface area and lithium storage capacity, and excellent cycle stability, conductivity, and heat stability.