RECENT ADVANCES IN HIGH TEMPERATURE ELECTROLYSIS AT IDAHO NATIONAL LABORATORY: SINGLE CELL TESTS

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An experimental investigation on the performance and durability of single solid oxide electrolysis cells (SOECs) is under way at the Idaho National Laboratory. In order to understand and mitigate the degradation issues in high temperature electrolysis, single SOECs with different configurations from several manufacturers have been evaluated for initial performance and long-term durability. A new test apparatus has been developed for single cell and small stack tests from different vendors. Single cells from Ceramatec Inc. show improved durability compared to our previous stack tests. Single cells from Materials and Systems Research Inc. (MSRI) demonstrate low degradation both in fuel cell ... continued below

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Zhang, X.; O'Brien, J. E. & O'Brien, R. C. July 1, 2012.

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An experimental investigation on the performance and durability of single solid oxide electrolysis cells (SOECs) is under way at the Idaho National Laboratory. In order to understand and mitigate the degradation issues in high temperature electrolysis, single SOECs with different configurations from several manufacturers have been evaluated for initial performance and long-term durability. A new test apparatus has been developed for single cell and small stack tests from different vendors. Single cells from Ceramatec Inc. show improved durability compared to our previous stack tests. Single cells from Materials and Systems Research Inc. (MSRI) demonstrate low degradation both in fuel cell and electrolysis modes. Single cells from Saint Gobain Advanced Materials (St. Gobain) show stable performance in fuel cell mode, but rapid degradation in the electrolysis mode. Electrolyte-electrode delamination is found to have significant impact on degradation in some cases. Enhanced bonding between electrolyte and electrode and modification of the microstructure help to mitigate degradation. Polarization scans and AC impedance measurements are performed during the tests to characterize the cell performance and degradation.

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  • ASME 2012 10th Fuel Cell Science, Engineering and Technology Conference,San Diego, CA,07/23/2012,07/26/2012

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  • Report No.: INL/CON-12-24655
  • Grant Number: DE-AC07-05ID14517
  • Office of Scientific & Technical Information Report Number: 1064044
  • Archival Resource Key: ark:/67531/metadc839487

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 2012

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  • May 19, 2016, 9:45 a.m.

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  • June 20, 2016, 5:37 p.m.

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Zhang, X.; O'Brien, J. E. & O'Brien, R. C. RECENT ADVANCES IN HIGH TEMPERATURE ELECTROLYSIS AT IDAHO NATIONAL LABORATORY: SINGLE CELL TESTS, article, July 1, 2012; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc839487/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.