▎ 摘　　要

NOVELTY - The electrode has relatively high surface area formed from graphene sheets, and relatively high mesoporous volume for capacitive separation of ions. The high mesoporous volume is produced by the incorporation of spacers between the graphene sheets. The spacers are bound to the graphene sheets in graphene dispersion. The spacer is polymer used to bind the graphene sheets together or to substrate, preferably the polymer is selected from a group consisting of carboxymethyl cellulose (CMC), styrene butadiene rubber (SBR), polyvinylidene fluoride (PvDF) and polytetrafluoroethylene (PTFE). USE - Electrode e.g. capacitive or graphene electrode (claimed) for capacitive deionization of water and energy storage. ADVANTAGE - Graphite is treated appropriately by chemical so that it can be readily dispersed in water to generate stable graphene oxide, graphene and graphene dispersions without the need for any polymeric or surfactant stabilizers. Allows use of graphene and graphene oxide-based electrodes that can be made to be primarily mesoporous while retaining high surface area and having short diffusion pathways which allows very fast response.