▎ 摘　　要

NOVELTY - The cell has an electrolyte located between a cathode and an anode. A set of vertically free-standing graphene and carbon nano-sheets (320) are standing on surfaces. The cathode and the anode or other places comprise a current collector, where the set of vertically free-standing graphene and carbon nano-sheets partially cover a surface of the current collector. The set of vertically free-standing graphene and carbon nano-sheets are partially embedded in three-phase interfaces. The electrolyte is embedded with vertically free-standing graphene and carbon nano-sheets. USE - Fuel cell. Uses include but are not limited to a proton exchange membrane fuel cell, a solid oxide fuel cell, an alkaline fuel cell, a direct-methanol fuel cell, a molten-carbonate fuel cell, and a phosphoric-acid fuel cell. ADVANTAGE - The vertically free-standing graphene and carbon nano-sheets whose performance enhancement mechanism is based on unique properties of the graphene material such as high electrical conductivity, large specific surface, high structural strength, high chemical stability, and large amount of active sites. The cell realizes good electrical conductivity of the graphene materials, and accessibility to catalysts' surface on the interface of a component and a fuel due to large contact surface, so that a structure of vertically free-standing graphene and carbon nano-sheets can dramatically enhance transport of electrons from the fuel to the cell's external electrical circuit and decrease an inner resistance, thus enhancing power and increasing totally efficiency of the cell. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of vertically free-standing graphene and carbon nano-sheets directly grown on surface of a solid-state substrate, where a surface of layers/components achieves excellent electrical conductivity through graphene materials. Solid state substrate (310) Vertically free-standing graphene and carbon nano-sheets (320, 420) Fuel cell component (400) Supporting substrate (410) Catalyst particle (430)