Time Evolution of Local Potentials during PEM Fuel Cell Operation with Dead-Ended Anode

被引：21

作者：

Abbou, S. ^{[1
,2
]}

Dillet, J. ^{[1
,2
]}

Spernjak, D. ^{[3
]}

Mukundan, R. ^{[3
]}

Fairweather, J. ^{[3
]}

Borup, R. L. ^{[3
]}

Maranzana, G. ^{[1
,2
]}

Didierjean, S. ^{[1
,2
]}

Lottin, O. ^{[1
,2
]}

机构：

[1] Univ Lorraine, LEMTA, Vandoeuvre Les Nancy, France

[2] CNRS, LEMTA, Vandoeuvre Les Nancy, France

[3] Los Alamos Natl Lab, Los Alamos, NM USA

来源：

POLYMER ELECTROLYTE FUEL CELLS 13 (PEFC 13) | 2013年 / 58卷 / 01期

关键词：

D O I：

10.1149/05801.1631ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

We present experimental results obtained with a two-dimensional segmented cell with reference electrodes along the gas channels, used to record local anode and cathode potentials. Aging protocols consisting of repeated dead-ended anode operation sequences (with anode outlet closed) were performed to assess the impact of hydrogen starvation on the local fuel cell performance. We observed strong local cathode potential excursions, as well as nonuniform ElectroChemical Surface Area (ECSA) losses and performance degradation along the cell area. The damage was more pronounced in the regions suffering the longest from fuel starvation: i.e. close to the anode outlet.

引用

页码：1631 / 1642

页数：12

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