Title

Characterization of Solid Oxide Fuel Cells by use of an Internal Pt Voltage Probe

Abstract

DC and ac impedance measurements were performed on yittria-stabilized ZrO2 electrolytes to separate bulk properties from interfacial phenomena. A Pt voltage probe was buried directly into the solid yittria-stabilizied ZrO2 electrolyte via screen-printing tape cast layers. DC measurements of solid oxide fuel cells were performed with an internal Pt voltage probe to determine ohmic and nonohmic drops for the total cell during operation. AC impedance measurements were also utilized to show a good correlation between the total cell impedance and the sum of the two half-cell impedances.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Characterization; Electric impedance measurement; Electrolytes; Platinum; Yttrium compounds; Zirconia; Internal platinum voltage probe; Screen printing tapecast layers; Solid oxide fuel cells; Total cell impedance; Yttria; Oxides

International Standard Serial Number (ISSN)

0013-4651

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 Electrochemical Society, Inc., All rights reserved.

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