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001     862548
005     20240712112817.0
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100 1 _ |a Udomsilp, D.
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245 _ _ |a Dual-Phase Cathodes for Metal-Supported Solid Oxide Fuel Cells: Processing, Performance, Durability
260 _ _ |a Pennington, NJ
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|b Electrochemical Soc.
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520 _ _ |a Cathode processing is one of the main challenges in the manufacturing of metal-supported solid oxide fuel cells (MSCs). Cathodesintering in ambient air is not applicable to MSCs, as oxidation of the metal substrate and the metallic Ni of the anode damagesthe cell. A recently developed ex situ sintering procedure for the LSCF cathode in an argon atmosphere was shown to significantlyimprove cathode adherence. However, the stability of the sintered cathode layer posed a challenge during storage in ambient air. In thepresent work, adapting the ex situ sintering approach to LSC/GDC dual-phase cathodes not only enabled the ex situ sintering processto be applied to LSC-based cathodes, but also resulted in the superior stability of the cathode after sintering. Despite the hygroscopicproperties of the partially decomposed perovskite, LSC/GDC dual-phase cathodes were shown to withstand more than 1 year ofstorage in ambient air without failure. Electrochemical single-cell measurements and post-test analysis confirmed the reversibilityof phase transformations and the electrochemical activity of such dual-phase cathodes. Current densities of 1.30 A cm−2 at 750°C,0.85 A cm−2 at 700°C, and 0.54 A cm−2 at 650°C were obtained at a cell voltage of 0.7 V.
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536 _ _ |a SOFC - Solid Oxide Fuel Cell (SOFC-20140602)
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700 1 _ |a Thaler, F.
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700 1 _ |a Menzler, N. H.
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700 1 _ |a Bischof, C.
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700 1 _ |a de Haart, L.G.J.
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700 1 _ |a Opitz, A. K.
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700 1 _ |a Guillon, O.
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700 1 _ |a Bram, M.
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773 _ _ |a 10.1149/2.0561908jes
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