Thin metal electrode for AMTEC

Thin metal electrode for AMTEC

An electrode having higher power output is formed of a thin, porous film (less than 1 micrometer) applied to a beta-alumina solid electrolyte (BASE). The electrode includes an open grid, current collector such as a series of thin, parallel, grid lines applied to the thin film and a plurality of cros...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Williams, Roger M., Wheeler, Bob L., Jefferies-Nakamura, Barbara, Lamb, James L., Bankston, C. Perry, Cole, Terry
Format: Report
Sprache:eng
Schlagworte:
Composite Materials
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Beschreibung
Zusammenfassung:An electrode having higher power output is formed of a thin, porous film (less than 1 micrometer) applied to a beta-alumina solid electrolyte (BASE). The electrode includes an open grid, current collector such as a series of thin, parallel, grid lines applied to the thin film and a plurality of cross-members such as loop of metal wire surrounding the BASE tube. The loops are electrically connected by a bus wire. The overall impedance of the electrode considering both the contributions from the bulk BASE and the porous electrode BASE interface is low, about 0.5 OHM/cm.sup.2 and power densities of over 0.3 watt/cm.sup.2 for extended periods.