Method of preparing a sintered lithium aluminate structure for containing electrolyte
A porous sintered tile is formed of lithium aluminate for retaining molten electrolyte within a fuel cell. The tile is prepared by reacting lithium hydroxide in aqueous solution with alumina particles to form beta lithium aluminate particles. The slurry is evaporated to dryness and the solids dehydrated to form a beta lithium aluminate powder. The powder is compacted into the desired shape and sintered at a temperature in excess of 1200 K. But less than 1900 K. To form a porous integral structure that is subsequently filled with molten electrolyte. A tile of this type is intended for use in containing molten alkali metal carbonates as electolyte for use in a fuel cell having porous metal or metal oxide electrodes for burning a fuel gas such as hydrogen and/or carbon monoxide with an oxidant gas containing oxygen.
- Assignee:
- Department of Energy
- Patent Number(s):
- US 4251600
- Application Number:
- TRN: 81-015184
- OSTI ID:
- 6348009
- Resource Relation:
- Patent File Date: Filed date 27 Dec 1979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HIGH-TEMPERATURE FUEL CELLS
ELECTROLYTES
MATRIX MATERIALS
ALUMINATES
FABRICATION
LITHIUM COMPOUNDS
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FUEL CELLS
MATERIALS
OXYGEN COMPOUNDS
300503* - Fuel Cells- Materials
Components
& Auxiliaries