▎ 摘　　要

NOVELTY - Graphene-lead composite material comprises a lead base, which is fixed to the graphene material chip as carrier by depositing the lead on the surface of graphene. USE - Graphene-lead composite material used for preparing graphene lead carbon electrode (claimed). ADVANTAGE - The graphene-lead composite material has excellent electric and thermal conductivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing graphene-lead composite material, which involves fixing expanded graphite sheet on one side of lead metal and then dipping other side in an electrolyte solution as the anode to obtain fixed graphene-lead body, cleaning and drying the metal substrate and then utilizing lead substrate graphene material piece as anode and graphite electrode or metal electrode as cathode, activating lead substrate graphene material piece surface by dipping in sulfuric acid solution, and subjecting the dipped material for pulse plating chemistry plating or ion sputtering to obtain the desired product; and (2) a method for preparing graphene-lead composite material graphene lead carbon electrode, which involves keeping the graphene lead composite material in lead solution and then in porous lead solution for 0-100 seconds, washing the obtained material in 1-15 moles per liter sulfuric acid solution, leaching the washed material for 0.1-50 hours to obtain activated graphene lead carbon electrode, and charging the activated material for 0.1-200 hours to obtain the desired product.