▎ 摘　　要

NOVELTY - The preparation method of surface amorphized titanium dioxide/graphene composite material involves adding 2-5 ml tetrabutyl titanate to 10-40 ml ethylene glycol and stirring for 10-15 hours, then adding 100-200 ml acetone and continuously stirring for 1-4 hours to obtain titanium glycol solution and dispersing in the aqueous solution, adding 20-50 ml isopropanol, stirring at 30-100 degrees C for 8-12 hours and centrifugally drying for 10-12 hours to obtain surface amorphous titanium dioxide hydrolyzed product, annealing at 600 degrees C for 0.5-3 hours to obtain crystalline titanium dioxide, preparing graphite oxide aqueous solution by Hummers method, uniformly mixing surface amorphous titanium dioxide hydrolyzed product and crystalline titanium dioxide, carrying out hydrothermal treatment at 120-200 degrees C for 3-6 hours, centrifuging obtained product and drying for 10-12 hours. USE - The method is useful for preparing surface amorphized titanium dioxide/graphene composite material as electrode material for lithium ion battery (claimed). ADVANTAGE - The method enables simple preparation of the surface amorphized titanium dioxide/graphene composite material with excellent multiplying power property and cyclical stability. The surface amorphized titanium dioxide/graphene composite material improves the comprehensive performance of lithium ion battery.