▎ 摘　　要

NOVELTY - Graphene flakes are exfoliated from graphite sample by compressing a graphite sample in an electrochemical reactor; and applying a voltage between the graphite sample and an electrode in the electrochemical cell. USE - Exfoliation of graphene flakes from graphite sample. ADVANTAGE - During the operation of the apparatus, fresh electrolyte can be added to drive further exfoliation. The ceramic membrane can be static during operation of the apparatus, or can move relative to the cathode during operation. As the graphite pellet is exfoliated and expands, the ceramic membrane can move upward, away from the cathode, to accommodate that expansion. The ceramic membrane maintains sufficient downward pressure to maintain the graphite pellet in contact with the cathode, despite the expansion of graphite. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for apparatus for exfoliating the graphite comprising electrochemical reactor; electrodes comprising an anode (2); cathode (4) material; a graphite sample (6); and a compression apparatus configured to compress the graphite sample during an exfoliation reaction. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the apparatus for expansion of graphite. Anode (2) Cathode (4) Graphite sample (6) Permeable ceramic membrane (8) Electrolyte (10)