Patent ID: 7548410

Claim:
A capacitor comprising: a capacitor element having an anode foil coupled to an anode terminal, a cathode foil coupled to a cathode terminal, a separator, and an electrolyte layer, the anode foil, the cathode foil and the separator being rolled together, the separator being between the anode foil and the cathode foil, the electrolyte layer being formed between the anode foil and the cathode foil; a packaging material that has an opening and packages the capacitor element; and a sealing material that has a through hole where the anode terminal and the cathode terminal pass through and that seals the opening of the packaging material, wherein: a given space is provided between the sealing material and the capacitor element; at least one of the anode terminal and the cathode terminal has a lead portion, a first material, a second material and a stopper, the first material has a diameter larger than that of the lead portion, is connected to the lead portion and passes through the through hole of the sealing material, and the second material is coupled to the capacitor element, and the stopper is provided between the first material and the second material and has a width larger than the diameter of the first material.