▎ 摘　　要

NOVELTY - The method involves adding a nickel source, a cobalt source and urea to the aqueous graphene oxide solution, and magnetically stirring to obtain a uniformly mixed brown suspension. The suspension id transferred to a PTFE reactor. A synthesis reaction of the precursor at a low temperature is performed. The furnace is cooled, washed, and dried to obtain a dried composite precursor after the reaction is completed. The obtained composite precursor in deionized water and magnetically stirring is dispersed to obtain a uniform gray suspension. A sulfur source is added to the gray suspension under stirring, and continuously stirred to obtain a uniform mixed solution. The mixed liquid is transferred to a PTFE reactor, and an ion exchange reaction is performed at a high temperature. The composite sulfide is obtained, and cooled with the furnace, washed, and dried to obtain a black powdery material, which is a transition metal sulfide/graphene composite material. USE - Method for preparing transition metal sulfide/graphene composite material. ADVANTAGE - The method combines transition metal sulfide and graphene to improve the rate performance and cycle stability of the material. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of the scanning electron micrograph of the composite precursor.