大功率PEMFC电堆维修后活化工艺研究  

Research on the activation process after the maintenance of high power PEMFC stacks

作　　者：裴冯来 PEI Fenglai(Laboratory of Hydrogen and Fuel Cell Test&Research,Shanghai Motor Vehicle Inspection Certification&Tech Innovation Center Co.,Ltd.,Shanghai 201805,China)

机构地区：[1]上海机动车检测认证技术研究中心有限公司氢能与燃料电池检测研究实验室,上海201805

出　　处：《电源技术》2024年第5期916-921,共6页Chinese Journal of Power Sources

基　　金：国家市场监督管理总局技术保障专项项目(2022YJ06)。

摘　　要：大功率质子交换膜燃料电池(polymer electrolyte membrane fuel cell,PEMFC)的膜电极(membrane electrode assembly,MEA)对电堆性能有着重要影响。为了探讨大功率PEMFC电堆维修后的活化工艺及典型问题,综述了电堆的不同的MEA活化工艺,提出了电堆维修后的恒流自然活化、恒流强制活化和变流强制活化工艺,对电堆维修后的不同活化工艺进行了对比和分析。研究结果表明,将更换的MEA放置在电堆配气头侧,并采用变流强制活化可以快速活化电堆并提高性能。The membrane electrode assembly(MEA)of a high-power proton exchange membrane fuel cell(PEMFC)has an important impact on the performance of the stack.The purpose of this study is to investigate the activation process and typical problems of high-power PEMFC stack after maintenance.Firstly,different MEA activation strategies are reviewed,and constant current natural activation,constant current forced activation,and variable current forced activation processes after stacks maintenance are proposed.Then the activation strategies of different activation processes after stacks maintenance are compared and analyzed.The results show that placing the replacement MEA on the gas inlet side of the stack and using variable current forced activation processes can rapidly activate the stack and improve performance.

关 键 词：质子交换膜燃料电池 膜电极 电堆维修 活化工艺 

分 类 号：TM911[电气工程—电力电子与电力传动]