ZINKELEKTRODE FUER EINE ELEKTROCHEMISCHE STROMQUELLE

ZINKELEKTRODE FUER EINE ELEKTROCHEMISCHE STROMQUELLE

An improved active electrode composition for a zinc electrode of an electrochemical accumulator is provided with an ingredient that inhibits the passage of zinc into the alkaline electrolyte of the accumulator during the discharge process. The ingredient is preferably an alkaline fluoride, which dur...

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Bibliographische Detailangaben
Hauptverfasser: VANACEK,JOSEF, KOUDELKA,VOJTECH, CENEK,MIROSLAV,DR, MALIK,JIRI,DR, SANDERA,JOSEF, KOURIL,OLDRICH, CALABEK,MILAN
Format: Patent
Sprache:ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:An improved active electrode composition for a zinc electrode of an electrochemical accumulator is provided with an ingredient that inhibits the passage of zinc into the alkaline electrolyte of the accumulator during the discharge process. The ingredient is preferably an alkaline fluoride, which during discharge forms with the zinc a compound which is only slightly soluble, if at all, in the electrolyte. The resulting prevention of the reversible movement of zinc into and out of the solution is effective to prevent an undesired shifting of active material on the collector of the electrode, and generally to increase its life.