▎ 摘　　要

NOVELTY - Preparation of tin dioxide-graphene-carbon nanotube flexible anode material involves dissolving tin salt in pure water, heating to 90-230 degrees C for 3-72 hours, cooling to room temperature, adding sugar substance to cooled tin salt aqueous solution, stirring, dissolving, heating to 90-230 degrees C for 1-72 hours, cooling to room temperature, obtaining mixed liquid (I), adding graphene oxide dispersion to mixed liquid (I), stirring, mixing uniformly, obtaining mixed liquid (II), adding single-walled carbon nanotubes to mixed liquid (II), adding styrene-butadiene rubber and hydriodic acid solution, stirring uniformly, ultrasonically treating, obtaining mixed liquid (III), subjecting mixed liquid (III) to vacuum filtration, and drying. USE - Preparation of tin dioxide-graphene-carbon nanotube flexible anode material used in lithium iron battery (claimed). ADVANTAGE - The method efficiently and economically provides tin dioxide-graphene-carbon nanotube flexible anode material having excellent mechanical property, durability and circulating performance, and high energy density, by simple method without affecting the environment.