SUBSTRATE TUBE FOR SOLID ELECTROLYTE FUEL CELL

SUBSTRATE TUBE FOR SOLID ELECTROLYTE FUEL CELL

PROBLEM TO BE SOLVED: To provide a substrate tube which costs low, in which thermal expansion rates and shirinkage rates are in a prescribed range and of which long-sizing is possible. SOLUTION: A solid electrolyte type fuel cell substrate tube contains CaO-stabilized ZrO2by 55-75 wt.% and MgO by 25...

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Hauptverfasser: KUDOME OSAO, HOJO TORU, WATANABE YOSHIHARU, INOUE YOSHIAKI, TSUKUDA HIROSHI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a substrate tube which costs low, in which thermal expansion rates and shirinkage rates are in a prescribed range and of which long-sizing is possible. SOLUTION: A solid electrolyte type fuel cell substrate tube contains CaO-stabilized ZrO2by 55-75 wt.% and MgO by 25-45 wt.%, with the particle size of the CaO-stabilized ZrO2of 0.5-4 μm, the particle diameter of MgO in the range of 10-30 μm, the shrinkage rates in calcination in the range of 12-17% and the void volumes after the calcination in the range of 25-35%. Furthermore, the solid electrolyte type fuel cell substrate tube is laminated with an electrolyte film, a fuel electrode, an air electrode, and an inter-connector to thereby obtain a solid electrolyte type fuel cell of a lateral stripe type and a solid electrolyte type fuel cell of a vertical stripe type. COPYRIGHT: (C)2004,JPO