▎ 摘　　要

NOVELTY - Expandable graphite is placed within a chamber. Vacuum is applied to the chamber and electric current is applied to vacuum-induction heat-expandable graphite, to form expanded graphite. USE - Manufacture of expanded graphite used for manufacturing graphene product e.g. graphene nano-sheet (all claimed). Uses include but are not limited to transparent electrode, semiconductor, nano-composite material, battery, supercapacitor and hydrogen storage. ADVANTAGE - The expanded graphite provides graphene nano-sheets with high purity and uniform thickness by a simple, clean and effective process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of graphene product, which involves manufacturing expanded graphite and exfoliating the expanded graphite in a solvent to form graphene nanosheet(s) dispersed in the solvent.