Graphene powder is a magical material, as long as it is added to other materials, it can produce magical effects. It is indeed the "metamaterial" in the field of materials. Not only is it "thin and strong", but as a heat conductor, it has better thermal conductivity than any current material. Using graphene, scientists can develop a series of new materials with special properties. Due to its low resistivity and fast electron migration, it is expected to be used to develop thinner and faster conductive chips, replacing silicon materials.