▎ 摘　　要

NOVELTY - A composite material has scaffold having graphene sheet(s) each oriented in independent alignment plane perpendicular to composite axis and carbon nanotube(s), and matrix having porous carbon. The scaffold is at least partially embedded in the matrix. At least a portion of carbon nanotubes are oriented such that their respective tube axis are oriented at specific angle with respect to composite axis. USE - Composite material is used as composite electrodes in electrochemical system which is used in supercapacitor, primary and secondary battery, and in fuel cell (all claimed). ADVANTAGE - The composite material has excellent electrical properties, thermal properties, mechanical properties, magnetic properties, optical properties, chemical properties, acoustical properties, radiological properties, and biological properties, and has increased thickness than can be achieved in purely formed electrodes from porous carbon that lack such reinforcement. With increased thickness, the surface area of composite electrodes increases, resulting enhanced charge storage of charge when employed in applications such as supercapacitors and batteries. The mechanical reinforcement afforded by the scaffold allows the composite to function as a free-standing electrode, without additional support. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) electrochemical system, which has electrode (E1) and electrode (E2), electrolyte provided between the two electrodes, and separator mechanically separating the two electrodes. At least one of the electrodes (E1) and (E2), is the composite material; (2) fabrication of composite material (300), which involves providing (302) carbon slurry comprising solvent(s), porous carbon, conductive graphene sheet(s), and carbon nanotube(s), depositing (304) film of the carbon slurry upon substrate, positioning carbon slurry film within magnetic field and sonic wave, and removing at least a portion of solvents from the deposited film to form solidified film of the composite. The magnetic field lines are oriented at defined angle with respect to the plane of substrate. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of a method for fabricating composite films. Fabrication of composite material (300) Carbon slurry providing process (302) Slurry film deposition process (304) Solidified composite film (310) Composite electrode formation process (312) Composite removal process (314)