质子交换膜燃料电池
电解
聚合物电解质膜电解
材料科学
电压
降级(电信)
计算机科学
核工程
化学
电气工程
工程类
电极
催化作用
电解质
物理化学
电信
生物化学
作者
Sebastien Boulevard,J. J. A. Kadjo,Anthony Thomas,B. Grondin Perez,S. Martemianov
出处
期刊:Russian Journal of Electrochemistry
[Springer Nature]
日期:2022-04-01
卷期号:58 (4): 258-270
被引量:1
标识
DOI:10.1134/s102319352204005x
摘要
The proton exchange membrane electrolyzer (PEMWE) technology is an up-and-coming technology for the hydrogen vector. Although already present in the industry, it still presents several technological drawbacks. One of them concerns MEA, whose price is still high (mainly due to the noble metals used for the catalysts (iridium for example)), for a rather limited lifetime. Indeed, the MEAs degradation’s due to the PEMWE operation’s over a long time is an exciting study criterion, aiming to optimize their lifetime. During a PEMWE operating cycles, the aging mechanism is linked to the different combinations of parameters imposed on it, particularly the current and the set voltage. At the end of MEA life operation, the analysis of the voltage signals behaviour of a PEMWE with time revealed, during changes of operating points, a phenomenon of instability, which increases with the working time. Using mathematical descriptors to quantify these instabilities permit the prediction of the temporal evolution of this phenomenon.
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