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AssigneeRubycon Corporation
InventorsAkihiko Komatsu, Toshikazu Iida, Takashi Nozawa, Taketo Matsuzawa, Tetsushi Ogawara, Shigeru Uzawa
Estimating the term…
The electrical properties and high-temperature characteristics of an electrolytic capacitor are rendered satisfactory by addition of a compound with an unsaturated bond-containing chain which serves to absorb hydrogen gas generated by reaction between the aluminum electrode foil and the electrolyte solution. The electrolytic capacitor contains the unsaturated compound which allows hydrogen addition, or the electrolytic solution, which comprises a solvent composed of 10-80 wt % of an organic solvent and 90-20 wt % water and at least one electrolyte selected from the group consisting of carboxylic acids or their salts and inorganic acids or their salts, also comprises one or more unsaturated compounds which are water-soluble or soluble in polar and protic polar solvents.
An electrolyte solution for use in an electrolytic capacitor comprising a compound having an unsaturated carbon-carbon or carbon-nitrogen π bond containing chain which undergoes hydrogen addition reaction in the electrolyte solution, at least one type of electrolyte selected from the group consisting of carboxylic acids or their salts or inorganic acids or their salts, 10-80 wt % of an organic solvent and 90-20 wt % water, wherein the compound having an unsaturated carbon-carbon or carbon-nitrogen π bond containing chain which undergoes hydrogen addition reaction comprises alkyne, alkene or imine, and at least one substituent group selected from the group consisting of hydroxyl, formyl, carbonyl, acyl, carboxyl, sulfonyl, sulfinyl, sulfenyl, amido, amino, alkylamino, dialkylamino, alkoxysilyl, silanol, phenylcarboxyl, nitrile, nitro, nitroso, phenol, phosphono, esters and ethers.
An electrolyte solution for use in an electrolytic capacitor comprising a compound having an unsaturated carbon-carbon or carbon-nitrogen π bond containing chain which undergoes hydrogen addition reaction in the electrolyte solution, at least one type of electrolyte selected from the group consisting of carboxylic acids or their salts or inorganic acids or their salts, 15-80 wt % of an organic solvent and 85-20 wt % water, wherein the compound having an unsaturated carbon-carbon or carbon-nitrogen π bond containing chain which undergoes hydrogen addition reaction comprises alkyne, alkene or imine, and at least one substituent group selected from the group consisting of hydroxyl, formyl, carbonyl, acyl, carboxyl, sulfonyl, sulfinyl, sulfenyl, amido, amino, alkylamino, dialkylamino, alkoxysilyl, silanol, phenylcarboxyl, nitrile, nitro, nitroso, phenol, phosphono, esters and ethers.
Dependencies are inferred from the claim text.