| 摘要 |
PURPOSE:To enable the tight hermetic hole-sealing, and stabilize characteristics, by sealing the aperture part of a metal case with a hole-sealing body composed of a rigid insulating plate and an elastic body arranged on the upper surface of the rigid insulating plate. CONSTITUTION:An anode foil and a cathode foil are wound together with a separator, and impregnated with a driving electrolyte, to form a capacitor element 6, which is accommodated in a cylindrical metal case 7 having a bottom. The aperture of the case 7 is sealed with a hole-sealing body 9 composed of a rigid insulating plate 9a and an elastic body 9c arranged on the upper surface of the insulating plate 9a. The insulating plate 9a has recesses 9b on the peripheral part of the upper surface and that of lead lead-out parts, and has, on the peripheral part of the lower surface, protrusions 9d with the almost same size as the recesses 9b on the upper peripheral surface. Thereby, the tight hermetic hole-sealing is enabled, and the characteristics are stabilized.
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