▎ 摘　　要

NOVELTY - A composite electrode material comprises 0.1-1 wt.% carbon nitride and 99-99.9 wt.% graphene oxide, where the carbon nitride is utilized as framework structure and the graphene oxide is coated on surface of the carbon nitride to form core-shell structure. USE - Composite electrode material. ADVANTAGE - The composite electrode material has better electrochemical performance and stability, during charging and discharging of battery, high capacitance of 221 F/gram at scanning speed of 5 mV/second, large capacity, small impedance value and less polarization, during charge and discharge test and is prepared in a simple manner at short period of time by not causing agglomeration of graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing the composite electrode material.