▎ 摘　　要

NOVELTY - Preparation of bamboo-like graphene tube/sulfur composite material comprises preparing bamboo-like graphene tube by adding dicyandiamide, cobalt acetate tetrahydrate, nickel acetate tetrahydrate and ferric nitrate in water, stirring until completely dissolved, evaporating to remove water, under the protection of nitrogen, high temperature roasting and reducing at 1000-1200 degrees C, adding dilute sulfuric acid to carry out corrosion reaction, after finishing the reaction, centrifuging, taking solid phase, washing, and drying to obtain bamboo graphene tube, and producing bamboo-like graphene tube/sulfur composite material by mixing bamboo-like graphene tube and sulfur, and conducting hot melting and sulfur volatilizing reaction. USE - The method is for preparation of bamboo-like graphene tube/sulfur composite material. ADVANTAGE - The method has simple and convenient operation and low raw material cost, avoids the stacking of graphene sheet layers, plays a role of physically binding polysulfide, and provides prepared graphene tube surface containing iron-cobalt-nickel nano particles, so that the lithium-sulfur battery can be catalyzed in the lithiation process and has high capacity, good efficiency and long cycle life.