Ilhan, Zeynep and Ansar, Asif and Wagner, Norbert (2008) Using equivalent circuit models in understanding the performance change of metal supported SOFCs in static and dynamic conditions. In: 8th European SOFC Forum. 8th European SOFC Forum, 2008-06-30 - 2008-07-04, Lucerne, Switzerland.
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Abstract
The current paper attempts to use equivalent circuit diagrams to simulate impedance spectra of metal supported SOFCs. Measured electrical impedance spectroscopy data on full cells was fitted to an equivalent circuit with the aim to evaluate the contribution of each functional layer towards the ASR of the cell separately. Further, the suitability of equivalent circuit diagrams to predict changes in cell behavior due to alteration in electrodes was investigated. For that purpose, two approaches were opted. First one consisted of replacing LSM cathode with LSCF cathode whereas the second comprised of redox cycling of cells provoking degradation in anodes and overall performance of the cells. Not only was the break down of the losses underlined, but also the limiting factors in the performance of metal supported cells were studied.
Item URL in elib: | https://elib.dlr.de/56750/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech, Poster) | ||||||||||||||||
Title: | Using equivalent circuit models in understanding the performance change of metal supported SOFCs in static and dynamic conditions | ||||||||||||||||
Authors: |
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Date: | June 2008 | ||||||||||||||||
Journal or Publication Title: | 8th European SOFC Forum | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Editors: |
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Status: | Published | ||||||||||||||||
Keywords: | SOFC, Electrochemical Impedance spectroscopy, LSM, LSCF, Equivalent circuit | ||||||||||||||||
Event Title: | 8th European SOFC Forum | ||||||||||||||||
Event Location: | Lucerne, Switzerland | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Start Date: | 30 June 2008 | ||||||||||||||||
Event End Date: | 4 July 2008 | ||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||
HGF - Program: | Efficient Energy Conversion (old) | ||||||||||||||||
HGF - Program Themes: | E BZ - Fuel cells (old) | ||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||
DLR - Program: | E BZ - Fuel cells | ||||||||||||||||
DLR - Research theme (Project): | E - Hochtemperatur-Brennstoffzellen (old) | ||||||||||||||||
Location: | Stuttgart | ||||||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||
Deposited By: | Ilhan, Zeynep | ||||||||||||||||
Deposited On: | 17 Dec 2008 | ||||||||||||||||
Last Modified: | 24 Apr 2024 19:21 |
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