▎ 摘　　要

NOVELTY - Preparing antimony sulfide-pyrochlore oxide-reduced graphene oxide (Sb2S3-Sb6O13-rGO) composite material comprises dissolving soluble antimony salt, L-tartaric acid and vulcanizing agent in beaker with deionized water to obtain a mixed solution, adding polyvinyl pyrrolidone to the mixed solution A to obtain mixed solution C, transferring the solution C to a stainless steel reaction vessel for hydrothermal reaction, filtering and drying to obtain solid D, placing the solid D in a tubular furnace, sintering with the furnace under the gas atmosphere to obtain an intermediate product E, dissolving the intermediate product E in ultrasonic deionized water, mixing with the oxidized graphene solution, transferring the mixed product E to the stainless steel reactor for second hydrothermally reaction, cooling the reaction vessel, filtering, drying the solid F, freezing and drying the solid F to obtain the (Sb2S3-Sb6O13-rGO) composite material. USE - Method for preparing antimony sulfide-pyrochlore oxide-reduced graphene oxide (Sb2S3-Sb6O13-rGO) composite material used in lithium-ion battery negative electrode (claimed). ADVANTAGE - The method effectively relieve the volume expansion effect generated in the charging and discharging process, so that the electrochemical performance is improved, has excellent electrochemical performances, and is simple, the cost is low, the yield is high, and it is suitable for industrial mass production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the Sb2S3-Sb6O13-rGO composite material is applied in the field of lithium-ion battery negative electrode.