高电流密度质子交换膜水电解制氢技术研究进展与展望OA

To elucidate the bottlenecks in mass/heat transfer and hydrogen safety risks faced by proton exchange membrane(PEM)water electrolysis under high current density conditions,this review systematically summerises the research progress of three key components—membrane electrode assembly(MEA),porous transport layer,and bipolar plate and flow fields—revealing the technological evolution from material substitution and structural innovation toward multi-component collaborative design.Results indicate that although preliminary achievements have been made in core material replacement and structural innovation for high-current-density PEM hydrogen production,challenges concerning material cost and reliability,thermal management,and hydrogen permeation still restrict efficiency and safety,remaining fundamentally unresolved.Future research should focus on elucidating material degradation mechanisms under high current densities,strengthening innovation in multi-level dynamic heat-mass management technologies spanning"materials-components-electrolyzer",and advancing the establishment of accelerated aging test standards and lifespan prediction models,thereby promoting the efficient,reliable,and large-scale development of PEM hydrogen production technology.