▎ 摘　　要

NOVELTY - Conductive composition comprises chlorinated polyvinyl chloride (CPVC) and a conductive filler. The CPVC has a chlorine content of 60-72 wt.% and is prepared by chlorinating a vinyl chloride resin having an inherent viscosity of 0.4-1.4. The composition comprises 20-85 vol.% of the conductive filler. The composition comprises carbon fibers, an acid neutralizer, and disodium phosphate. The conductive filler comprises graphitic material. The graphitic material comprises graphite, graphene, and carbon black. The bipolar plates are enclosed in an enclosure comprising CPVC. USE - The composition is useful for preparing a bipolar plate which is used in an electrochemical system (claimed) e.g. fuel cells, flow batteries, and electrolysis processes. ADVANTAGE - The conductive composition has high glass transition temperature, high heat distortion temperature, robust chemical resilience, strong mechanical properties, and fire resistivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing a bipolar plate; and an electrochemical system comprising a layer of a cathode.