Durability of symmetric-structured metal-supported solid oxide fuel cells
Abstract
Symmetric-structure metal-supported solid oxide fuel cells (MS-SOFC) with YSZ electrolyte are fabricated with porous YSZ backbone electrodes, stainless steel supports, and infiltrated catalysts on both anode and cathode side. Durability towards aggressive thermal and redox cycling, and long-term operation is assessed. Additionally, many sealing material candidates are screened for compatibility with the cell materials and operating conditions, and a commercial sealing glass, GM31107, is selected. LSM/SDCN cells are then subjected to 200 very fast thermal cycles and 20 complete redox cycles, with minimal impact to cell performance. LSM/SDCN and SDCN/SDCN cells are operated for more than 1200 h at 700 °C. The seal and cell hermeticity is maintained, and cell ohmic impedance does not change significantly during operation. Electrode polarization increases during operation, leading to significant degradation of the cell performance. Lastly, in-operando EIS and post-mortem SEM/EDS analysis suggest that catalyst coarsening and cathode Cr deposition are the dominant degradation modes.
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1532213
- Alternate Identifier(s):
- OSTI ID: 1549265
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Power Sources
- Additional Journal Information:
- Journal Volume: 369; Journal Issue: C; Journal ID: ISSN 0378-7753
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 30 DIRECT ENERGY CONVERSION; SOFC; Metal-supported; Chromium poisoning; Symmetric cell
Citation Formats
Tucker, Michael C. Durability of symmetric-structured metal-supported solid oxide fuel cells. United States: N. p., 2017.
Web. doi:10.1016/j.jpowsour.2017.09.075.
Tucker, Michael C. Durability of symmetric-structured metal-supported solid oxide fuel cells. United States. https://doi.org/10.1016/j.jpowsour.2017.09.075
Tucker, Michael C. Tue .
"Durability of symmetric-structured metal-supported solid oxide fuel cells". United States. https://doi.org/10.1016/j.jpowsour.2017.09.075. https://www.osti.gov/servlets/purl/1532213.
@article{osti_1532213,
title = {Durability of symmetric-structured metal-supported solid oxide fuel cells},
author = {Tucker, Michael C.},
abstractNote = {Symmetric-structure metal-supported solid oxide fuel cells (MS-SOFC) with YSZ electrolyte are fabricated with porous YSZ backbone electrodes, stainless steel supports, and infiltrated catalysts on both anode and cathode side. Durability towards aggressive thermal and redox cycling, and long-term operation is assessed. Additionally, many sealing material candidates are screened for compatibility with the cell materials and operating conditions, and a commercial sealing glass, GM31107, is selected. LSM/SDCN cells are then subjected to 200 very fast thermal cycles and 20 complete redox cycles, with minimal impact to cell performance. LSM/SDCN and SDCN/SDCN cells are operated for more than 1200 h at 700 °C. The seal and cell hermeticity is maintained, and cell ohmic impedance does not change significantly during operation. Electrode polarization increases during operation, leading to significant degradation of the cell performance. Lastly, in-operando EIS and post-mortem SEM/EDS analysis suggest that catalyst coarsening and cathode Cr deposition are the dominant degradation modes.},
doi = {10.1016/j.jpowsour.2017.09.075},
journal = {Journal of Power Sources},
number = C,
volume = 369,
place = {United States},
year = {2017},
month = {10}
}
Web of Science
Figures / Tables:

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Works referencing / citing this record:
Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis
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Figures / Tables found in this record: