▎ 摘 要
NOVELTY - The method involves preparing a bipolar plate blank from an electrically conductive filler and a polymer adhesive. The bipolar plate blank is sealed in a metal foil bag under vacuum. The bag out metal foil is hot isostatically pressed under vacuum sealed bipolar plate blank at a pressure greater than 100 MPa and a temperature of 150-400 ?o C. The bipolar plate blank is detached from metal foil pouch to obtain bipolar plate. The electrically conductive filler content is 90-99 wt. %, based on total weight of mixture of conductive filler and polymer adhesive. The content of the polymer adhesive is 1 - 20 wt. %. The metal foil pouch is made of copper foil or nickel foil. The electrically conductive filler is a carbonaceous material selected from graphite, graphene, carbon nanotubes. The graphite is selected from flake graphite, ultrafine graphite, expandable graphite. The polymeric adhesive is selected from phenolic resins, epoxy resins, vinyl esters, polyimides, polypropylenes. USE - Method of making bipolar plate for fuel cell e.g. proton exchange membrane fuel cell (all claimed) for use in electric vehicles such as automobiles, local power plants, and portable appliances. ADVANTAGE - The method provides a bipolar plate with high electrical conductivity and low gas permeability. The density, electrical conductivity and mechanical strength of the bipolar plate are improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for bipolar plate for a fuel cell. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the bipolar plate for fuel cell.