质子交换膜燃料电池膜电极研究进展

Progress of Membrane Electrode Assembly for Proton Exchange Membrane Fuel Cell

膜电极(Membrane Electrode Assembly,MEA)作为质子交换膜燃料电池(Proton Exchange Membrane Fuel Cell,PEMFC)最核心的部件,为PEMFC提供了多相物质传递的微通道和电化学反应场所,直接决定了PEMFC的性能、寿命和成本.为了实现PEMFC大规模商业化发展,制备高功率密度、低Pt载量、长寿命、低成本的MEA尤为关键.MEA经历了从第一代到第二代的发展,目前已进入新一代有序化型的发展阶段,其性能、寿命得到大幅度提升,成本也不断下降.本文分析了三代类型MEA的优缺点,对开发高性能、长寿命和低成本MEA具有指导意义.

As the core component of proton exchange membrane fuel cell,Membrane electrode assembly(MEA)provides PEMFC with microchannels for multiphase mass transport and electrochemical reaction zone,which determines the performance,durability and cost of PEMFC.MEA with high power density,low Pt load,long life and low cost is especially important to develop large-scale commercialization of PEMFC.MEA has experienced the development from the first generation to the second generation.At present,it has entered the development stage of the new generation in an orderly way.The performance and service life have been greatly improved and the cost has been continuously reduced of order-structured MEA.This paper analyzes the advantages and disadvantages of three generation of MEA,which has guiding significance for the development of MEA with high performance,long life and low cost.