▎ 摘　　要

NOVELTY - Graphene coating comprises a graphene carrier layer that is applied at outer surface of heating component, where a graphite layer is provided with the graphene carrier layer. The density of graphene carrier layer is density greater than the density of graphite layer. USE - Graphene coating for electric heating generating device (claimed). ADVANTAGE - The graphene coating improves heat generating efficiency of electric heating generating device. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene coating, which involves: (A) applying graphene carrier layer at outer surface of heating component; and (B) providing graphite layer with the graphene carrier layer.