Graphene is a new material with laminate structure consisting of single layer of carbon atoms. It is the nano material with thinnest, hardest, best thermal conductivity and electrical conductivity known in the world, and is honored as a strategic emerging material that may reverse the future. Graphene has extremely strong mechanical, electrical, thermal, optical and other properties, so it has a wide range of applications, especially the fields such as electrode material, electronic chip, transparent conducting film and heat dissipation material.

Currently, preparing graphene by the method of chemical vapor deposition with rolled copper foil as the carrier is considered as the method most likely to industrialize the preparation of high-quality and large-area graphene.

The rolled copper foil developed by Zhaohui Copper for the preparation of graphene has the advantages of high purity, low surface roughness, high cleanliness and good smoothness, and has been used by a lot of domestic graphene preparation and research institutions.