质子交换膜燃料电池膜电极的问题分析与讨论  

Analysis and Discussion on Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cell

作　　者：崔新然 张克金 米新艳 朱雅男 王茁 曹婷婷 李军泽 李佳兴 韩聪 Cui Xinran;Zhang Kejin;Mi Xinyan;Zhu Yanan;Wang Zhuo;Cao Tingting;Li Junze;Li Jiaxing;Han Cong(Commercial Vehicle Development Institute,FAW Jiefang Truck Co.Ltd,Changchun 130011)

机构地区：[1]一汽解放汽车有限公司商用车开发院,长春130011

出　　处：《汽车文摘》2020年第8期15-21,共7页Automotive Digest

摘　　要：质子交换膜燃料电池(PEMFC)具有零排放、高比能量、低温快速启动等优点,可以被应用在电动汽车、便携式和分布式发电站等领域。膜电极(MEA)是PEMFC实现化学能与电能转换的核心部件,为PEMFC提供了电子、质子、水和气体多相物质传递的微通道和电化学反应场所,其特性的好坏直接影响到PEMFC的性能。MEA主要由质子交换膜、催化层、气体扩散层3部分组成。从质子交换膜的退化、降解、催化剂效率的衰减和MEA水淹方面介绍了现今MEA发展中遇到的主要问题,详细分析了问题形成机理并探讨主要的问题解决方案。Proton exchange membrane fuel cell(PEMFC)is expected to be widely applied in automobiles,portable power supplies,and distributed power stations due to its zero or low emission,high power density and rapid start-up.Membrane electrode assembly(MEA)is the core component of PEMFC,which provides the micro-channels for the transfer of multiphase substances and electrochemical reaction site,whose properties directly affect the overall performance of PEMFC.This paper aims to investigate the main obstacles of the MEA development in the recent years including the degradation of proton exchange membrane and the decay of catalyst and the flooding of MEA.Accordingly,mechanism and solutions of the obstacles above are analyzed so as to reduce the cost and improve the performance and durability of PEMFC.

关 键 词：质子交换膜燃料电池 膜电极 质子交换 膜催化 剂水淹 

分 类 号：O646[理学—物理化学] TM911.4[理学—化学]