▎ 摘　　要

NOVELTY - Reduced graphene oxide micro-nano-sulfur composite material comprises micro-nano sulfur which is orthogonal sulfur containing spindle-shaped particles having short diameter of 100-600 nm and aspect ratio of 1.5-3, uniformly supported on reduced graphene oxide layer. USE - Reduced graphene oxide micro-nano-sulfur composite material used for sulfur battery. ADVANTAGE - The reduced graphene oxide micro-nano-sulfur composite material having excellent electrochemical performance, manufactured efficiently and economically by simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of reduced graphene oxide micro-nano-sulfur composite material, which involves dissolving sublimed sulfur in a mixed solution of ethanol and ethylenediamine, dispersing graphene oxide in deionized water ultrasonically, adding the graphene oxide dispersion to polyvinylpyrrolidone solution to disperse uniformly, and dripping the sulfur-containing solution, stirring, adding acetic acid, and stirring to form graphene oxide micronano-sulfur material dispersion and adding reducing agent to graphene oxide micro-nano-sulfur material dispersion.