Electrolyte for electrolytic capacitor

Details Electrolyte for electrolytic capacitor Electrolyte for electrolytic capacitor

H - Electricity

01

G

31/94

H01G 9/02 (2006.01)

Patent

CA 1294423

ABSTRACT OF THE DISCLOSURE An electrolyte for electrolytic capacitor containing within an aprotic solvent an alkyl quarternary ammonium salt of enol-form of 1,3-cyclodiketone compound as solute. An electrolyte for electrolytic capacitor according to the invention may conveniently be prepared by adding one equivalent amount of enol-form of 1,3-cyclodiketone compound to a methylene chloride solution of alkyl ammonium hydrogen- sulfate for reaction with subsequent addition of two equiva- lent amounts of alkali hydroxide. A deposit is removed from the reaction product with subsequent vacuum drying to obtain an anhydrous salt and then dissolving said anhydrous salt to an aprotic solvent until a desired conductivity is obtained, for example, as an approximately 10% by weight solution.

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