Stack Performance of Proton Exchange Membrane Based Unitized Reversible Fuel Cells

DOI:10.15011/jasma.33.330305
Int. J. Microgravity Sci. Appl. 2016p330305
Author
Hiroshi ITO, Naoki MIYAZAKI, Masayoshi ISHIDA and Akihiro NAKANO
Organization
National Institute of Advanced Industrial Science and Technology (AIST), University of Tsukuba
Abstract
Proton exchange membrane (PEM) based unitized reversible fuel cells (URFCs) have attractive features as a key component of hydrogen utilization systems. To determine if drawbacks that do not appear in a small-scale single cell of a URFC are significant when a URFC has larger cells in a stack configuration required for commercial applications, a pilot-scale URFC system was successfully operated in both the electrolysis and fuel cell operation modes and both its overall stack performance and the performance variation between cells were measured. No significant drawbacks due to larger cells or stacking were detected in either mode. Local hydrogen pressure at the generation point during electrolysis mode and local flooding during fuel cell mode is examined based on experimental data.
Keyword(s)
Unitized reversible fuel cell, Proton exchange membrane, Pilot-plant, Local hydrogen pressure, Local flooding
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Received 24 December 2015, Accepted 8 June 2016, Published 31 July 2016

© The Japan Society of Microgravity Applicaiton

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