▎ 摘　　要

NOVELTY - Preparing nickel-cobalt-manganese lithium graphene composite material involves taking graphite as raw material, using ultrasonic mechanical stripping method to obtain graphene, mixing graphene and nickel-cobalt-manganese in de-ionized water then adding glucose and mixing ultrasonically, filtering, drying to obtain graphene composite nickel-cobalt-lithium manganate material, where mass ratio of raw material graphite and glucose is 1:1-1:3 and mass percentage of nickel-cobalt-manganese lithium graphene composite material is 2-5%. USE - Method for preparing nickel-cobalt-manganese lithium graphene composite material.