| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic capacitor permitting a sealing amount of an electrolyte to be increased without making a sealing structure thin in an electrolytic capacitor configured such that a capacitor element (7) is formed by winding anode foil (1) on the surface of which an oxide coated film is formed, and which comprises a valve operation metal and cathode foil (2) formed in opposition to the anode foil (1) via a separator (3); the capacitor element (7) is impregnated with an electrolyte and contained in a bottomed cylindrical case (8); and an opening of the case (8) is closed with a sealing structure (9) where through holes (10), (11) for an anode terminal (51) and a cathode terminal (52) mounted on the anode foil (8) and the cathode foil (2), respectively, are formed at a predetermined interval. SOLUTION: A liquid reservoir (90) is provided on the side of the electrolyte of the sealing structure (9) for containing the electrolyte. COPYRIGHT: (C)2005,JPO&NCIPI
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