Diffusion and Gas Conversion Analysis of Solid Oxide Fuel Cells at Loads via AC Impedance

<table>Nyquist plot for a button cell cathode fed with air and operating at varying temperature and load current. The data fits were obtained with the cathode equivalent circuit model in the right-hand corner of the figure.  Note that a CPE is used to fit the data in place of the <svg height="15.6875" id="M4" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 19.3375 15.6875" width="19.3375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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International Journal of Electrochemistry

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Figure 2

Figure 2: Diffusion and Gas Conversion Analysis of Solid Oxide Fuel Cells at Loads via AC Impedance 