▎ 摘　　要

NOVELTY - An activated carbon/carbon nanotube/graphene composite material, is prepared by knitting carbon nanotubes and graphene to form a three-dimensional porous network structure, and uniformly embedding activated carbon in the three-dimensional porous mesh like structure, where the carbon nanotubes are one-dimensional carbon nanotubes, and the graphene is two-dimensional redox graphene. USE - Activated carbon/carbon nanotube/graphene composite material for use in a lithium ion capacitor (claimed). ADVANTAGE - The composite material has no need to add a conductive agent, and binder, and improved self supporting and flexible characteristics for improving lithium ion capacitor energy density, and broadening the application field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing activated carbon/carbon nanotube/graphene composite material.