▎ 摘　　要

NOVELTY - A graphene-based flexible lithium-sulfur battery positive pole material comprises elemental sulfur particles and reduced graphene flake coated on a flexible film, where the amount of elemental sulfur in the flexible film is 15-70 mass% and reduced graphene is 30-85 mass%. USE - Method for preparing graphene-based flexible lithium-sulfur battery positive pole material. ADVANTAGE - The method enables preparing graphene-based flexible lithium-sulfur battery positive pole material with sulfur content of 60% and electrode capacity of 416 mAh/g. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a graphene-based flexible lithium-sulfur battery positive pole material, involves mixing sodium thiosulfate solution and reduced graphene dispersion, ultrasonically dispersing, where the mass ratio of the sodium thiosulfate and reduced graphene is 1:(0.087-1.148), adding ultrasound assisted hydrochloric acid solution to the mixture until the mixture pH value is less than 7, continuously sonicating for 30-50 minutes, subjecting the mixture to vacuum filtration, washing with ultra-pure water until the filtrate does not contain unreacted materials and soluble reaction products, putting vacuum filtration together with filter along the product, drying at 65-75 degrees C for 60-72 hours in vacuum oven and separating the material on the filter membrane to obtain graphene-based flexible lithium-sulfur battery positive pole material.