AUTHOR=Chou Yeong-Shyung , Hardy John , Marina Olga A. TITLE=Leak test for solid oxide fuel cells and solid oxide electrolysis cells JOURNAL=Frontiers in Energy Research VOLUME=Volume 10 - 2022 YEAR=2022 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.945788 DOI=10.3389/fenrg.2022.945788 ISSN=2296-598X ABSTRACT=This method provides a simple, fast, and economic way to assess if the seal of SOFC/SOEC cell to typical window frame plate is hermetic or not at room temperature using alcohol penetration. It al-so introduces methods to determine if the seal failed or cell cracked at high temperature after stack final firing either by with cross bubbling for unreduced cell or open circuit voltage (OCV) for full reduced cell.