▎ 摘　　要

NOVELTY - A graphene-coated copper composite conductive powder carbon layer structure preparing method involves stirring LPAN solution to prepare a micro-cyclizing of LPAN solution, and subjecting micro-cyclizing LPAN solution to heat treatment to form a ladder-shaped structure of polyacrylonitrile oligomer. The polyacrylonitrile polymer, copper compound and solvent are mixed to obtain LPAN coated copper compound and dried to evaporate the solvent and carbonized to obtain precursor coated copper compound followed by subjecting to inert gas atmosphere to obtain finished product. USE - Method for preparing a graphene-coated copper composite conductive powder carbon layer structure. DETAILED DESCRIPTION - A graphene-coated copper composite conductive powder carbon layer structure preparing method involves stirring LPAN solution at 80-300 degrees C for 8-72 hours to prepare a micro-cyclizing of LPAN solution, subjecting micro-cyclizing LPAN solution to heat treatment at 200-300 degrees C for 1-10 hours to form a thermal oxide having ladder-shaped structure of polyacrylonitrile oligomer. The polyacrylonitrile polymer, copper compound and solvent are mixed uniformly to obtain LPAN coated copper compound. The LPAN coated copper compound is dried at 180-250 degrees C for 1-10 hours to evaporate the solvent and carbonized to obtain precursor coated copper compound followed by subjecting the precursor coated copper compound to inert gas atmosphere with gas flow rate of 10-500 ml/minutes at 300-1800 degrees C for 6-24 hours to obtain graphene-coated copper composite conductive powder. An INDEPENDENT CLAIM is included for a graphene-coated copper composite conductive powder carbon layer structure is prepared by the method.