▎ 摘　　要

NOVELTY - A graphene-carbon nano tube airgel based nano silicon composite electrode material preparing method involves preparing modified graphite oxide, dispersing graphite oxide in deionized water, performing ultrasonic dispersion process and stripping single layer to obtain homogeneous stable graphene oxide dispersion, followed by preparing nano silicon liquid and carbon nano tube dispersing liquid, dispersing, adding surfactant in carbon nano tube dispersion liquid, performing ultrasonic dispersion process, freeze-drying, sintering and cooling naturally to obtain finished product. USE - Method for preparing graphene-carbon nanotube airgel based nano silicon composite electrode material. ADVANTAGE - The method enables nano silicon composite electrode material with high capacity, high efficiency, high safety, better circulation performance and suitable for industrial mass production, in a simple and easy manner. DETAILED DESCRIPTION - A graphene-carbon nano tube airgel based nano silicon composite electrode material preparing method involves preparing modified graphite oxide by hummers process, dispersing graphite oxide in deionized water to prepare 0.1-10 mg/ml graphite oxide suspension, performing ultrasonic dispersion process and stripping single layer to obtain homogeneous stable graphene oxide dispersion, followed by preparing nano silicon liquid and carbon nano tube dispersing liquid, dispersing uniformly, adding surfactant in carbon nano tube dispersion liquid, performing ultrasonic dispersion process, freeze-drying under protective atmosphere, sintering at 500-1000 degrees C for 1-10 hours and cooling naturally to obtain finished product.