Importance

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Abstract

An electrolytic capacitor is manufactured by coiling an anode foil with a lead terminal fixed thereto, a cathode foil with a lead terminal fixed thereto, and a separator into a capacitor assembly, placing a sealing cap of an elastomeric material on the lead terminals which are inserted through respective holes defined in the sealing cap after an adhesive is applied in the holes, thereby attaching the sealing cap to the capacitor assembly, and heating the adhesive until the adhesive is fully set, thereby bonding the lead terminals and the sealing cap to each other. Thereafter, the capacitor assembly is impregnated with an electrolytic solution, and the capacitor assembly with the sealing cap attached thereto is inserted into a case and sealing the capacitor assembly in the case. The electrolytic capacitor thus manufactured has a relatively simple structure to effectively prevent the electrolytic solution from leaking out, and also has a long service life and is highly reliable.

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First Claim