Patent ID: 7341801

Claim:
An electrolyte capacitor comprising: (a) a layer of an oxidizable metal; (b) an oxide layer of said metal; (c) a solid electrolyte; and (d) a plurality of contacts between said solid electrolyte and said oxide layer, wherein said solid electrolyte comprises polythiophenes having repeating units selected from the group consisting of general formula (I), and the combination of repeating units of the general formulas (I) and (II) wherein general formulas (I) and (II) are as follows, where A is selected from the group consisting of C 1 -C 5 -alkylene radical and substituted C 1 -C 5 -alkylene radical, R is selected in each case independently from the group consisting of linear or branched C 1 -C 18 -alkyl radical, substituted C 1 -C 18 -alkyl radical, C 5 -C 12 -cycloalkyl radical, substituted C 5 -C 12 -cycloalkyl radical, C 6 -C 14 -aryl radical, substituted C 6 -C 14 -aryl radical, C 7 -C 18 -aralkyl radical, substituted C 7 -C 18 -aralkyl radical, C 1 -C 4 -hydroxyalkyl radical, substituted C 1 -C 4 -hydroxyalkyl radical, and a hydroxyl radical, the substituted C 1 -C 5 -alkylene radical, substituted C 1 -C 18 -alkyl radical, substituted C 5 -C 12 -cycloalkyl radical, substituted C 6 -C 14 -aryl radical, substituted C 7 -C 18 -aralkyl radical and substituted C 1 -C 4 -hydroxyalkyl radical each being independently substituted with a member selected from the group consisting of alkyl, cycloalkyl, aryl, halogen, ether, thioether, disulphide, sulphoxide, sulphone, sulphonate, amino, aldehyde, keto, carboxylic ester, carboxylic acid, carbonate, carboxylate salt, cyano, alkylsilane and alkoxysilane groups, carboxamide groups and combinations thereof, and x is an integer from 0 to 8, wherein said polythiophene optionally comprises counterions.