Gas Purge for Switching of Polymer Electrolyte Unitized Reversible Fuel Cell

Gas Purge for Switching of Polymer Electrolyte Unitized Reversible Fuel Cell

Unitized reversible fuel cells combine the functionality of a fuel cell and electrolyzer in one unitized device. Gas purge operation is essential for switching from electrolyzer to fuel cell operation at a polymer electrolyte unitized reversible fuel cell. In order to examine the relationships betwe...

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Hauptverfasser: Ito, Hiroshi, Maeda, Tetsuhiko, Kato, Atsushi, Yoshida, Tetsuya, Ulleberg, Øystein
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container_end_page 1990
container_issue 1
container_start_page 1979
container_title
container_volume 25
creator Ito, Hiroshi
Maeda, Tetsuhiko
Kato, Atsushi
Yoshida, Tetsuya
Ulleberg, Øystein
description Unitized reversible fuel cells combine the functionality of a fuel cell and electrolyzer in one unitized device. Gas purge operation is essential for switching from electrolyzer to fuel cell operation at a polymer electrolyte unitized reversible fuel cell. In order to examine the relationships between the spending time and the gas flow rate, a gas purge model is presented. The model considers physical phenomena such as evaporation and diffusion from liquid water in the GDL and the membrane. Experimental data obtained with two cells with different size are also presented. The simulated curves of high frequency resistance versus time are in good agreement with the experimental data.
doi_str_mv 10.1149/1.3210754
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identifier ISSN: 1938-5862
ispartof ECS transactions, 2009, Vol.25 (1), p.1979-1990
issn 1938-5862
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source Institute of Physics Journals
title Gas Purge for Switching of Polymer Electrolyte Unitized Reversible Fuel Cell
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