▎ 摘　　要

NOVELTY - Three-dimensional cage-like nano graphene material has graphene thickness of 1-10 carbon atoms layer and cage diameter of 5-300 nm, preferably 10-150 nm. USE - Three-dimensional cage-like nano graphene material used as catalyst carrier or adsorbent material for manufacturing supercapacitors and lithium-ion battery (claimed). ADVANTAGE - The material has simple preparation, low cost and large specific surface area. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of three-dimensional cage-like nano graphene material comprising pyrolyzing carbon-silicon compound organic precursor material using fluidized bed and chemical vapor deposition combination, to get silicon carbide and carbon composite nanoparticles and vacuum heating.