Journal Articles ECS Transactions Year : 2013

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

Abstract

We present experimental results obtained with a 2D segmented cell with reference electrodes along the gas channels, used to record local anode and cathode potentials. Aging protocols consisting of repeated dead-end operation sequences were performed to assess the impact of hydrogen starvation on the local fuel cell performance. We observed strong local cathode potential excursion, as well as non-uniform 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 exit of the anode compartment.
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Dates and versions

hal-01431050 , version 1 (10-01-2017)

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Sofyane Abbou, Jérôme Dillet, Dusan Spernjak, Rangachary Mukundan, Joseph D. Fairweather, et al.. Time Evolution of Local Potentials during PEM Fuel Cell Operation with Dead-Ended Anode. ECS Transactions, 2013, 58 (1), pp.1631-1642. ⟨10.1149/05801.1631ecst⟩. ⟨hal-01431050⟩
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