▎ 摘　　要

NOVELTY - The method for preparing tin dioxide/graphene composite aerogel comprises (i) adding graphene oxide and water into a beaker for ultrasonic dispersion, and adding ethanol, where the concentration of the graphene oxide is 0.5-1.5 mg/ml, and the volume ratio of water and ethanol is 7:3, (ii) adding magnetic beads into the beaker, and (iii) adding 0.05-0.5 g urea into the beaker, stirring and dissolving, (iv) adding stannous chloride into the beaker, dissolving and mixing uniformly, weighing 1-1 g tetramethyl ammonium hydroxide solution, stirring uniformly, (v) pouring the mixed solution into the PTFE reaction kettle, covering the reaction kettle cover, (vi) placing the reactor in a steel sleeve, and placing the steel sleeve in an oven for heating reaction, and drying the washed sample. The mass of the graphene oxide is 0.25 g, 0.50 g or 0.75 g, the volume of the water is 35 mL, the volume of the ethanol is 15 mL USE - Preparation method of tin dioxide/graphene composite aerogel used as cathode material of lithium ion battery used in mobile electric appliance such as notebook computer, intelligent telephone and camera. ADVANTAGE - The method has good cycle performance and multiplying power performance, and exhibits good electrochemical reversible performance, and is lightweight and excellent electrochemical performance, and can effectively improve the capacity of the lithium ion battery and meet the requirement of people to the high performance battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an electrochemical performance research method of tin oxide/graphene composite aerogel.