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An electrical circuit for performance analysis of polymer electrolyte fuel cell stacks using electrochemical impedance spectroscopy
journal contribution
posted on 2015-08-20, 11:06 authored by Samuel Cruz-Manzo, Rui ChenIn this study, a new electrical equivalent circuit is developed to evaluate the performance of polymer electrolyte fuel cell (PEFC)
stacks using electrochemical impedance spectroscopy (EIS). Experimental EIS measurements were carried out in an open-cathode
PEFC stack to validate the new electrical equivalent circuit. The electrical equivalent circuit developed in the authors’ previous
study, which simulates the impedance response of a single PEFC, is applied to EIS measurements carried out in the open-cathode
PEFC stack. However, it cannot reproduce EIS measurements with positive imaginary components at low frequencies. Thus, in this
study, the electrical equivalent circuit is modified by adding electrical components which represent intermediate adsorbed species
in a two-step electrochemical reaction as reported in the literature. The results show that the new electrical equivalent circuit can
accurately reproduce the experimental EIS measurements and can give an insight into the factors that limit the performance of the
PEFC stack. This new electrical equivalent circuit can enable an assessment of the state of health and performance of the fuel cell
stacks.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
JOURNAL OF THE ELECTROCHEMICAL SOCIETYVolume
160Issue
10Pages
F1109 - F1115 (7)Citation
CRUZ-MANZO, S. and CHEN, R., 2013. An electrical circuit for performance analysis of polymer electrolyte fuel cell stacks using electrochemical impedance spectroscopy. Journal of the Electrochemical Society, 160 (10), pp. F1109 - F1115.Publisher
© Electrochemical SocietyVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2013Notes
This article was accepted for publication in the Journal of the Electrochemical Society [© Electrochemical Society]. The definitive version is available at: http://dx.doi.org/10.1149/2.025310jesISSN
0013-4651Publisher version
Language
- en