Continuous durability study of a high temperature polymer electrolyte membrane fuel cell stack

David Batet, Fatema T. Zohra, Simon B. Kristensen, Søren J. Andreasen and Lars Diekhöner

Applied Energy, 2020, vol. 277, issue C, No S0306261920310990

Abstract: High Temperature Polymer Electrolyte Membrane (HT-PEM) fuel cells are a promising choice for renewable power generation. We present an experimental study that investigates the durability of a full-size fuel cell stack, where membrane electrode assemblies were continuously extracted during operation of the stack, and analysed in detail with electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The evolution of membrane thinning, the loss of phosphoric acid and the changes in the catalyst layer of the electrodes have been investigated as a function of operation time. A correlation between the acid loss and the decrease of cell voltage has been determined to provide detailed insight into durability data of the HT-PEM fuel cell on a commercial sized stack level.

Keywords: Fuel cell; PEM; PBI; Stack; Durability; Acid loss (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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DOI: 10.1016/j.apenergy.2020.115588

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