Performance and Durability of Solid Oxide Electrolysis Cells | Zendy

Anne Hauch | Zendy; Søren Højgaard Jensen | Zendy; Séverine Ramousse | Zendy; Mogens Bjerg Mogensen | Zendy

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Performance and Durability of Solid Oxide Electrolysis Cells

Author(s) -

Anne Hauch,

Søren Højgaard Jensen,

Séverine Ramousse,

Mogens Bjerg Mogensen

Publication year - 2006

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.2216562

Subject(s) - electrolysis , polymer electrolyte membrane electrolysis , high temperature electrolysis , oxide , durability , electrolytic cell , materials science , passivation , fuel cells , chemistry , chemical engineering , electrode , metallurgy , composite material , layer (electronics) , engineering , electrolyte

Solid oxide fuel cells produced at Riso National Laboratory have been tested as electrolysis cells by applying an external voltage. Results on initial performance and durability of such reversible solid oxide cells at temperatures from 750 to 950°C and current densities from -0.25 A/cm 2 to - 0.50 A/cm 2 are reported. The full cells have an initial area specific resistance as low as 0.27 Ωcm 2 for electrolysis operation at 850°C. During galvanostatic long-term electrolysis tests, the cells were observed to passivate mainly during the first ∼ 100 h of electrolysis. Cells that have been passivated during electrolysis tests can be partly activated again by operation in fuel cell mode or even at constant electrolysis conditions after several hundred hours of testing.

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