Thin metal electrode for AMTEC

Details Thin metal electrode for AMTEC Thin metal electrode for AMTEC

1987-08-06

1989-05-30

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current production dependent upon temperature differential...

429 50, 429104, 429112, H01M 636, H01M 1044

Patent

active

048350710

ABSTRACT:
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.

REFERENCES:
patent: 3732195 (1976-01-01), Evans et al.
patent: 4175164 (1979-11-01), Cole
patent: 4452777 (1984-06-01), Abrams et al.
patent: 4675257 (1987-06-01), Winchester

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