▎ 摘　　要

NOVELTY - The material comprises cobaltosic oxide which is grown on a graphene substrate. The cobaltosic oxide is bar-shaped and has a mesoporous structure. The cobaltosic oxide is cubic spinel structure. The average aperture of cobaltosic oxide mesoporous is 12-13 nm. The diameter of cobaltosic oxide is 40-80 nm and the length is 200-2000 nm. The cobaltosic oxide is deposited from cobaltosic oxide nanoparticles. USE - Cobaltosic oxide-graphite nano-composite material used as catalyst of cathode for lithium-oxygen battery (all claimed). ADVANTAGE - The composite material as catalyst of cathode for lithium-oxygen battery for organic system effectively improves the overall performance of the battery and has high practical value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing cobaltosic oxide-graphite nano-composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a first constant current charge and discharge cycles for electrodes and discharge capacity of electrodes as a function of cycle times. (Drawing includes non-English language text)