This book is based on over 30 years of research work and systematically explains the intercalation technology of microcrystalline graphite intercalation compounds, the expansion and rolling processes of expanded graphite and flexible graphite, reinforcement techniques, low-sulfur techniques, and tap casting methods, and the intercalation-oxidation-stripping process for graphene powder preparation and the low-temperature negative pressure process. The book discusses the applications of deep-processed natural graphite products in lithium-ion batteries, oil absorption and environmental protection, stealth shielding, and bipolar plates of fuel cells.