▎ 摘 要
NOVELTY - Graphene oxide is mixed with source of organic carbon in mass ratio of 1-10:1 in water to form a mixed solution. The mixed solution is hydrothermally reacted at 100-250 degrees C, cooled and subjected to solid-liquid separating, washing and drying to obtain composite material of carbon-coated graphene oxide. USE - Manufacture of composite material of carbon-coated graphene oxide for lithium ion battery and capacitor (claimed). ADVANTAGE - The composite material of carbon-coated graphene oxide having high electrical conductivity and stable structural performance is economically manufactured by simple method, without affecting the environment. The composite material provides capacitor having high power density.