▎ 摘　　要

NOVELTY - The method involves raising the temperature to 600 to 1000 degrees C degrees centigrade for carbonizing under the protection of nitrogen or argon gas protective atmosphere. The heating rate is 1 to 10 degrees C per min degrees centigrade, heat preservation for 2 to 5h, cooling to room temperature to obtain the carbon cobalt graphene composite nano fiber. The obtained carbon cobalt graphene composite nano fiber is directly used as cathode material for lithium ion battery. USE - Preparation method of carbon cobalt graphene composite nano fiber cathode material (claimed). ADVANTAGE - The preparation method of carbon cobalt graphene composite nano fiber cathode material is effectively performed.