Aqueous electrolyte mixture for mcfcs

The present invention relates to an electrolytic mixture for molten carbonate fuel cells (MCFCs). The carrier solution is constituted by one or more organic solvents and water, with an organic solvent percentage comprised of between 5% and 80%. The electrolyte consists of a mixture of Li2CO3 and LiK...

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Bibliographische Detailangaben
Hauptverfasser:	SABATTINI ANNALISA, BERGAGLIO ELENA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present invention relates to an electrolytic mixture for molten carbonate fuel cells (MCFCs). The carrier solution is constituted by one or more organic solvents and water, with an organic solvent percentage comprised of between 5% and 80%. The electrolyte consists of a mixture of Li2CO3 and LiKCO3 in such stoichiometric ratios as to give the Li2CO3/K2CO3 62/38 eutectic mixture. The compound LiKCO3 has a solubility in water, like lithium carbonate, less than that of the potassium carbonate, which is normally found in MCFC electrolytic mixtures. This allows the resolution of the problem of electrolyte loss during the operation of the cell, due to the solubilisation of the same in water.