▎ 摘　　要

NOVELTY - Preparing a cathode material of a lithium-sulfur battery involves: (1) preparing graphene aerogel-supported titanium dioxide nanoparticle composite by adding titanium sulfate and glucose to graphene oxide dispersion, fully dissolving and uniformly mixing titanium sulfate and glucose into the graphene oxide dispersion, then transferring the mixture to a hydrothermal kettle for hydrothermal reaction to obtain a brown-black aerogel, washing the obtained product, then freeze-drying, and performing high-temperature calcination; and (2) co-milling the prepared graphene aerogel-supported titanium dioxide nanoparticle composite and sublimed sulfur powder until they are uniformly mixed, then heating the mixture at 150-160 degrees C under argon atmosphere for 10-15 hours, naturally cooling to room temperature, and taking out gray-black powder i.e. the target product. USE - The method is useful for preparing a cathode material of a lithium-sulfur battery. ADVANTAGE - The method enables simple and economical preparation of the cathode material. The prepared cathode material increases the specific cycle stability of the battery, comprehensively improves the electrochemical performance of the battery, prolongs the service life of the battery, and reduces the polarization during charging and discharging. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the cathode material of lithium-sulfur battery prepared by the above method.