▎ 摘　　要

NOVELTY - Method for stacking multilayer of alternating graphene and carbon nanotubes involves synthesizing graphene oxide, forming exfoliated graphene oxide, dispersing reduced graphene oxide nanosheets and carbon nanotubes in ethanol and 1-butanol, respectively, dripping the suspensions of reduced graphene oxide and carbon nanotubes on water surface, forming a graphene oxide film and a carbon nanotube film, and forming alternating layers of graphene oxide and carbon nanotubes from the separate graphene oxide and carbon nanotube films. USE - Method for stacking multilayer of alternating graphene and carbon nanotubes for forming ultra-thin supercapacitor structure (claimed) e.g. electrochemical capacitor used as energy storage device. ADVANTAGE - The method enables efficient stacking of multilayer of alternating graphene and carbon nanotubes with excellent mechanical adhesion of active materials to the current collector, and increased active surface area of reduced graphene oxide nanosheets and permeation of gel electrolyte, and reduced agglomeration of reduced graphene oxide nanosheets, providing supercapacitor structure with high electrochemical performance. DETAILED DESCRIPTION - Method for stacking multilayer of alternating graphene and carbon nanotubes involves synthesizing graphene oxide from high-purity graphite flake powder using modified Hummer's method with improved purification by chemical reduction, forming exfoliated graphene oxide, dispersing reduced graphene oxide nanosheets and carbon nanotubes in ethanol and 1-butanol, respectively, dripping the suspensions of reduced graphene oxide and carbon nanotubes on water surface in separate dishes, forming a graphene oxide film and a carbon nanotube film, and forming alternating layers of graphene oxide and carbon nanotubes from the separate graphene oxide and carbon nanotube films, and forming a stack of reduced graphene oxide and carbon nanotube films. An INDEPENDENT CLAIM is included for ultra-thin supercapacitor structure.