POWDER FOR ELECTROLYTE IN FUEL CELLS
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United States of America Patent
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Issued Date -
Oct 21, 2010
app pub date -
Dec 9, 2008
filing date -
Dec 10, 2007
priority date (Note) -
Abandoned
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Abstract
An agglomerated powder is formed comprising a metal oxide agglomerated with at least one alkaline carbonate to be used as an electrolyte in fuel cells. The obtained agglomerates exhibit good flow properties which facilitates the handling of the powder and improved homogeneity and stability compared to a plain mixture of the ingredients. In a preferred embodiment the technology is directed to agglomerating fine and irregular particulate ceria powder with lithium and sodium or potassium carbonates to be used for compaction of thin plates used as electrolytes for solid oxide fuel cells. A powder to be used as electrolyte in fuel cells, comprising a metal oxide and at least one alkali carbonate is provided. A bonding is formed between the metal oxide and the at least one alkali carbonate during mixing thereby providing an agglomerated powder and avoiding segregation.
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