This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1149/2.1141506jes in citations.
Please use the identifier: http://hdl.handle.net/2128/8547 in citations.
PEM Fuel Cell Characterisation by Means of the Physical Model for Impedance Spectra
PEM Fuel Cell Characterisation by Means of the Physical Model for Impedance Spectra
A recent analytical solution of the physical model for the PEM fuel cell impedance [A. A. Kulikovsky, J. Electrochem. Soc., 162, F217 (2015)] is used for least–squares fitting of experimental impedance spectra. Ten spectra are collected in one experimental run of a cell with ten segments operated at...
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Personal Name(s): | Reshetenko, Tatyana (Corresponding Author) |
---|---|
Kulikovsky, Andrei | |
Contributing Institute: |
Technoökonomische Systemanalyse; IEK-3 |
Published in: | Journal of the Electrochemical Society, 162 (2015) 7, S. F627-F633 |
Imprint: |
Pennington, NJ
Electrochemical Soc.
2015
|
DOI: |
10.1149/2.1141506jes |
Document Type: |
Journal Article |
Research Program: |
Fuel Cells |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/8547 in citations.
A recent analytical solution of the physical model for the PEM fuel cell impedance [A. A. Kulikovsky, J. Electrochem. Soc., 162, F217 (2015)] is used for least–squares fitting of experimental impedance spectra. Ten spectra are collected in one experimental run of a cell with ten segments operated at a current density of 100 mA cm− 2 under high stoichiometry of the oxygen flow. The model impedance is fitted to the spectra and the resulting physical parameters of the cathode side are discussed. Of particular interest is a low value of the oxygen diffusion coefficient in the cathode catalyst layer ( ≃ 0.45 · 10− 4 cm2 s− 1), a parameter, which has not been measured in situ so far. This low value, as well as a high value of the cathode catalyst layer (CCL) proton conductivity σp ≃ 0.054 Ω− 1 cm− 1 is attributed to a large amount of liquid water in the CCL. |