Solid oxide fuel cells, a process for producing solid electrolyt

Details Solid oxide fuel cells, a process for producing solid electrolyt Solid oxide fuel cells, a process for producing solid electrolyt

1993-09-13

1996-06-18

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 33, H01M 810, H01M 812

Patent

active

055276334

ABSTRACT:
A solid oxide fuel cell having an ion conductive solid electrolyte layer formed by a spraying method, wherein a thickness of the solid electrolyte layer is not less then 40 .mu.m and not more than 100 .mu.m, and a leakage amount of N.sub.2 gas of the solid electrolyte layer at room temperature is not more than 10.sup.-5 cc/g.second. A permeation coefficient of the solid electrolyte layer is preferably not more than 10.sup.-7 cm.sup.4 /g.second at room temperature. The solid electrolyte layer includes at least one metal element selected from manganese, iron, cobalt, nickel, copper and zinc, in an average amount of not less than 1 atom % and not more than 15 atom % based on a sum of amounts of all metal elements contained in the solid electrolyte layer.

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Solid State Ionics. vol. 52, No. 1-3, 1992, Amsterdam NL, pp. 269-275, A. R. Nicoll et al. "The potential of plasma spraying for the deposition of coatings on SOFC components". (month n/a).
Chemical Abstracts, vol. 83, No. 14, Oct. 6, 1975, Columbus, Ohio, US; abstract no. 120025x, "Plasma-torch spraying of zirconium dioxide stabilized with yttrium oxide containing iron (III) oxide and bismuth (III) oxide additions".

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