| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high ripple resistant and high temperature resistant capacitor with a long lifetime by suppressing hydration deterioration, caused by a reaction between an oxide film of an anode foil and water, and increase of a leak current even when water is added to a certain extent or water is generated to a certain extent in manufacturing an electrolyte in order to reduce resistivity corresponding to a high ripple current, concerning an aluminum electrolyte capacitor that is obtained by impregnating an electrolyte in a capacitor element wound with etched anode and cathode foils with a separator interposed therebetween and then storing the capacitor element in a case.SOLUTION: Provided is the electrolyte for an electrolytic capacitor added with at least one kind of organic phosphonic acid, having chelate ability, and an ammonium salt thereof in an electrolyte for an electrolytic capacitor with polyvalent alcohols being a main solvent and an acid being a solute. |
