▎ 摘　　要

NOVELTY - A graphene-based polymer nanocomposite bipolar plate consists of a polymer-graphite composite containing a plant-derived resin containing carboxyl group, between plate-shaped oxide graphene layers. USE - Graphene-based polymer nanocomposite bipolar plate is used in vanadium redox-flow cell (claimed). ADVANTAGE - The graphene-based polymer nanocomposite bipolar plate has excellent workability, electroconductivity, and dimensional stability (due to low viscosity of resin). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of bipolar plate, which involves mixing an oxidized graphene and functional group-modified plant-derived resin, mixing graphite with the modified mixture, and polymerizing the modified mixture in presence of an initiator.