▎ 摘　　要

NOVELTY - Method for preparing a ZIF-8-reduced graphene oxide-supported sulfur composite material, involves dispersing graphene oxide in a sulfuric acid solution by ultrasound, and obtaining a three-dimensional reduced graphene oxide through a solvothermal reaction. Dissolved zinc salt and urea in deionized water to obtain a mixed solution; immerse the three-dimensional reduced graphene oxide in the mixed solution, and then transfer it to the reaction kettle for hydrothermal reaction to obtain basic zinc carbonate-reduced graphene oxide Composite material. Dissolved the 2-methylimidazole in methanol, and then added basic zinc carbonate-reduced graphene oxide composite material for immersion reaction to obtain ZIF-8-reduced graphene oxide composite material. The ZIF-8-reduced graphene oxide composite material is uniformly mixed with sulfur powder, and sulfur is fumed in an argon atmosphere to obtain a ZIF-8-reduced graphene oxide-supported sulfur composite material. USE - The method enables to prepare ZIF-8 reduced graphene oxide-supported sulfur composite material which is used as a positive electrode material to make a lithium-sulfur battery (claimed). ADVANTAGE - The method enables to prepare ZIF-8 reduced graphene oxide-supported sulfur composite material that increases the pores and specific surface area of the composite material, which is beneficial for subsequent fumigation. In the sulfur step, more single sulfur particles are loaded to obtain a ZIF-8-reduced graphene oxide-supported sulfur composite material has high capacity, long cycle life, low cost, and easy to grow. Mass production and other advantages.