▎ 摘　　要

NOVELTY - The method involves dispersing graphene in an alcohol aqueous solution, adding a surfactant, and stirring to obtain a slurry. The slurry is spray dried to obtain graphene microspheres. The sulfur powder is added to the graphene microspheres, stirred and mixed, and heated at 120-180 degrees C to obtain graphene or sulfur microspheres. The graphene or sulfur microspheres are heated to obtain the graphene or sulfur porous microsphere composite material. USE - Method for preparing graphene or sulfur porous microsphere composite material (claimed) as anode of lithium-sulfur battery. ADVANTAGE - The excess sulfur on the surface of the graphene or sulfur microspheres is effectively removed, and ensures that the sulfur is loaded to the maximum inside the graphene microspheres. The chance of polysulfide leaving the surface of the positive electrode material is reduced, thus the shuttle effect of polysulfide is reduced. The gram capacity of the graphene or sulfur porous microsphere composite material reaches 600 mAh/g, and the conductivity is excellent. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view of the charging and discharging platform of lithium-sulfur battery prepared by graphene or sulfur porous microsphere composite material as a positive electrode of a lithium-sulfur battery. (Drawing includes non-English language text)