FLOODING AND DRYING DIAGNOSIS OF PROTON EXCHANGE MEMBRANE FUEL CELLS USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ANALYSIS
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Apr 12, 2013
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Abstract
Electrochemical impedance spectroscopy EIS is an experimental technique that can be used for measured the ac impedance spectra of polymer electrolyte fuel cell (PEMFC) cathodes under various experimental conditions. This ac impedance is used for identify electrode/flow channel flooding and membrane drying
The main goal of this work was to develop a suitable PEMFC impedance model, which can be using for used for diagnosis of PEM fuel cell. For this one a novel optimization method based on factorial Design methodology is used. It was applied for parametric analysis of electrochemical impedance Thus it is possible to evaluate the relative importance of each parameter to the simulation accuracy. Furthermore this work presents an analysis of the PEMFC impedance behavior in the case of flooding and drying.
The main goal of this work was to develop a suitable PEMFC impedance model, which can be using for used for diagnosis of PEM fuel cell. For this one a novel optimization method based on factorial Design methodology is used. It was applied for parametric analysis of electrochemical impedance Thus it is possible to evaluate the relative importance of each parameter to the simulation accuracy. Furthermore this work presents an analysis of the PEMFC impedance behavior in the case of flooding and drying.