▎ 摘　　要

NOVELTY - Preparing ferric oxide/graphene composite, comprises e.g. preparing graphite oxide by Hummers method, Brodie method or Staudenmaier method, dispersing graphite oxide into water, processing the oxide by ultrasonic wave, adding soluble ferrite into graphite oxide dispersing solution, adding urea into the mixed solution and stirring, moving the mixed solution to a reaction container, introducing inert gas to discharge oxygen, heating the solution in the premise of condensing and back flowing, separating and washing the sample and then drying, and processing the dry sample. USE - The method is useful for preparing ferric oxide/graphene composite, which is useful in lithium-ion secondary battery cathode material. ADVANTAGE - The method is capable of simply, rapidly preparing the ferric oxide/graphene composite with high efficiency, stability and performance in an environmentally friendly manner thus improving the performance of the lithium ion secondary battery with high safety. DETAILED DESCRIPTION - Preparing ferric oxide/graphene composite, comprises: (1) preparing graphite oxide by Hummers method, Brodie method or Staudenmaier method; (2) dispersing graphite oxide into water, and processing the oxide by ultrasonic wave to peel the graphite oxide; (3) adding soluble ferrite into graphite oxide dispersing solution and then stirring till completely dissolve; (4) adding urea into the mixed solution and then stirring till completely dissolve; (5) moving the mixed solution to a reaction container, and introducing inert gas to discharge oxygen; (6) microwave heating the mixed solution in the premise of condensing and back flowing and then completely reacting; (7) separating the sample, and washing the sample and then completely drying; and (8) processing the dry sample at high temperature under protection of inert gas, and cooling to room temperature in inert gas.