摘要
对由亲水电极与Nafion112质子交换膜制备的质子交换膜燃料电池（PEMFC）膜电极组件（MEA），测试了工作温度、气体压力、气体相对湿度和气体流量等对MEA性能的影响。试验和分析显示MEA的适宜工作条件为：温度70℃、压力0．2～0．3MPa、H2／O2或空气的相对湿度为100％／60％、H2／O2或空气流量计量比分别为1．1～1，2／1．2～1．5或2.0～2．5。在此条件下对MEA进行了1000h放电性能测试。结果表明，该MEA的结构和性能稳定，能满足燃料电池长寿命工作要求。
The effects of operation temperature, gas pressure, gas relative humidity （RH） and gas flowrate on membrane electrode assembly （MEA） performance for the proton exchange membrane fuel cell produced by hydrophilic electrodes and PEM Nation 112 were tested in this paper. The results of the experiment and analysis showed that the optimal conditions were temperature was 70℃ , pressure was 0.2 - 0.3 MPa, RH of H2/O2 or air was 100 %/60 %, and stoichiometry of H2/O2 or air was 1.1 - 1.2/1.2 ～ 1.5/2.0～ 2.5 respectively. The long lifetime performance of MEA under optimal conditions was tested. It was found that MEA could meet the long lifetime demand for fuel cells as its structure and performance were stable during 1 000 hour＇s work.
出处
《上海航天》
北大核心
2007年第2期61-64,共4页
Aerospace Shanghai
关键词
质子交换膜燃料电池
膜电极组件
电化学性能
工作条件
长寿命
Proton exchange membrane fuel cell
Membrane electrode assembly
Electrochemical performance
Work condition
Long lifetime
