▎ 摘　　要

NOVELTY - An expanded graphite contains interlayer substance inserted between graphenes of graphene laminated body, wherein there are 10-500 (0-200) counts of diffraction peak height and 2 theta (CuK alpha ) diffraction peak in X-ray diffraction pattern of 8-12 degrees (25-27 degrees C). USE - An expanded graphite for manufacture of graphene and graphene-like sheet. ADVANTAGE - Expanded graphite is easily and stably peeled by mechanical peeling process in graphene or flaking graphite, and graphene or flaking graphite is manufactured stably and in large quantities from graphite. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing method of expanded graphite which involves immersing graphite in acidic electrolyte aqueous solution, using graphite as working electrode, and performing electrochemical process by applying direct current voltage of 0.6-0.8 V between contrast poles for 48-1000 hours other than natural electrical potential.