▎ 摘　　要

NOVELTY - Hybrid nanocomposite comprises at least one insertion structure for placing carbon nanofibers between graphene sheets made of reduced graphene oxide, where the insertion structure does not contain any surfactant, and is formed by equally dispersing and reducing the carbon nanofiber in aqueous dispersion liquid of graphene oxide. USE - The hybrid nanocomposite is useful to produce electrodes for super-capacitor (claimed), preferably high-capacity energy storage device. ADVANTAGE - The nanocomposite exhibits complex function of double-layer capacitor, and controls the electrical and chemical properties.