Journal article · Conference paper
Durability of Solid Oxide Electrolysis Cell and Interconnects for Steam Electrolysis
Department of Energy Conversion and Storage, Technical University of Denmark1
Applied Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark2
Mixed Conductors, Department of Energy Conversion and Storage, Technical University of Denmark3
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark4
Fundamental Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark5
Durability of a solid oxide electrolysis cell tested at -1.5A / cm2 for high temperature steam electrolysis was investigated in the present work under stack relevant conditions. Detailed electrochemical and microstructural analyses were carried out. The results show that both the hydrogen and the oxygen electrodes degraded during the durability test.
The degree of percolation loss in the active Ni-YSZ hydrogen electrode is found to decrease along the steam flow direction whereas the formation of cracks or cavities/pores within the electrolyte shows the opposite trend. The influence of sealing and interconnects on cell degradation under harsh electrolysis conditions is further discussed.
| Language: | English |
|---|---|
| Year: | 2013 |
| Pages: | 3229-3238 |
| Proceedings: | 13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII) |
| ISSN: | 19386737 and 19385862 |
| Types: | Journal article and Conference paper |
| DOI: | 10.1149/05701.3229ecst |
| ORCIDs: | Sun, Xiufu , Chen, Ming , Hendriksen, Peter Vang and Mogensen, Mogens Bjerg |
