Graphite material refers to minerals or artificial synthetic materials with carbon as the main component and a layered hexagonal lattice structure, which have the characteristics of conductivity, heat resistance and lubricity. Special graphite is characterized by high strength, high density and high purity. It has high chemical stability, strong thermal conductivity and electrical conductivity, high temperature resistance and radiation resistance. It plays an extremely important role in metallurgy, chemical industry, machinery, medical equipment, nuclear energy, automotive solar energy, aerospace, new energy batteries, and supporting materials for negative electrode materials.