Durability of Solid Oxide Electrolysis Cell and Interconnects for Steam Electrolysis

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Abstract

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.
Original languageEnglish
JournalE C S Transactions
Volume57
Issue number1
Pages (from-to)3229-3238
ISSN1938-5862
DOIs
Publication statusPublished - 2013
Event13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII) - Okinawa, Japan
Duration: 6 Oct 201311 Oct 2013
Conference number: 13

Conference

Conference13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII)
Number13
CountryJapan
CityOkinawa
Period06/10/201311/10/2013

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