NDLI: Preparation of thin film SOFCs working at reduced temperature

Content Provider	Springer Nature Link
Author	Charpentier, P. Fragnaud, P. Schleich, D. M. Des, Y. Gehain, E.
Copyright Year	1998
Abstract	SOFCs are expected to become competitive devices for electrical power generation, but successful application is dependent on decreasing working temperature from 1000 to 800 °C, without detrimental effects on resistance and on electrode processes. This requires a reduction of the stabilised zirconia electrolyte thickness and an optimisation of the electrodes and interfaces.We have studied the preparation of a thin film SOFC device working at intermediate temperatures (less than 850 °C). The electrolyte must be very dense and as thin as possible to avoid ohmic losses. Electrodes, anode and cathode, must be porous enough to enable the gas fluxes to go through. Ni/YSZ cermet anodes have been prepared by a conventional ceramic method and support the cells. Thin Yttria Stabilised Zirconia electrolytes (YSZ) have been deposited by RF sputtering, DC sputtering and spray pyrolysis onto a Ni/YSZ cermet. Thin film La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ (LSM) cathodes have been deposited onto the electrolytes by a spray-pyrolysis method. We present here the preparation and the characterisation of each component and the electrochemical performance of such cells at 850 °C.
Starting Page	118
Ending Page	123
Page Count	6
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	4
Issue Number	1-2
e-ISSN	18620760
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biomedicine general Analytical Chemistry Physical Chemistry Electrochemistry Optical and Electronic Materials
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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