▎ 摘　　要

NOVELTY - Graphene-metal composite fiber is claimed. The composite fibers are made of pure graphene fibers and gold layer composition of coated pure graphene fibers, surface of pure graphene fiber having pleats, and embedding gold layer with pleat to elongate structure. USE - The method is useful for preparing graphene-metal composite fiber (claimed). ADVANTAGE - The method has stable fiber structure and improves electrical property of material, and can bends hundred times but conductivity does not change. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene-metal composite fiber comprising (i) preparing graphene oxide fiber using wet spinning method, where diameter is 1-50 m, (ii) then placing graphene oxide fiber in high-temperature furnace, heating and reducing to obtain pure graphene fiber, and (iii) fixing pure graphene fiber to anode electrode of the plating groove for plating, where anode electrode of plating tank is graphite rod, applying direct current voltage of 0.1-20 V, plating in plating solution for 2-120 seconds, removing fiber, washing surface of fiber with deionized water, drying in an oven under vacuum to obtain graphene-gold composite fiber, where the composition of plating solution composed of gold trichloride having concentration of 25-45 g/l, 60 wt.% hydrochloric acid having volume concentration of 1-8 ml/l, sodium sulfite having concentration of 80-150 g/l, and ammonium citrate having concentration of 60-100 g/l.