Journal article
Performance and durability of solid oxide electrolysis cells
Department of Chemistry, Technical University of Denmark1
Ceramic processing, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Electrochemistry, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Solid oxide fuel cells produced at Riso National Laboratory have been tested as electrolysis cells by applying an external voltage. Results on initial performance and durability of such reversible solid oxide cells at temperatures from 750 to 950 degrees C and current densities from -0.25 A/cm(2) to -0.50 A/cm(2) are reported.
The full cells have an initial area specific resistance as low as 0.27 Omega cm(2) for electrolysis operation at 850 degrees C. During galvanostatic long-term electrolysis tests, the cells were observed to passivate mainly during the first similar to 100 h of electrolysis. Cells that have been passivated during electrolysis tests can be partly activated again by operation in fuel cell mode or even at constant electrolysis conditions after several hundred hours of testing.
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2006 |
| Pages: | A1741 |
| ISSN: | 19457111 and 00134651 |
| Types: | Journal article |
| DOI: | 10.1149/1.2216562 |
| ORCIDs: | Hauch, Anne , Ramousse, Severine and Mogensen, Mogens Bjerg |
