Abstract: An electrolytic capacitor includes a capacitor main body. The capacitor main body includes an exterior member and a pair of lead members. The exterior member includes a case and a closing part. The case has a hollow column shape. The case includes an opening part at an end in an axial direction of the hollow column shape. The closing part closes the opening part. The pair of lead members each include a drawn part exposed from the closing part. The drawn part has a bar shape. When viewed in the axial direction, a width of the drawn part is 0.1 times or more of a diameter of the exterior member.

Abstract: An electrolytic capacitor includes a capacitor main body. The capacitor main body includes an exterior member and a pair of lead members. The exterior member includes a case and a closing part. The case has a hollow column shape. The case includes an opening part at an end in an axial direction of the hollow column shape. The closing part closes the opening part. The pair of lead members each include a drawn part exposed from the closing part. The drawn part has a bar shape. When viewed in the axial direction, a width of the drawn part is 0.1 times or more of a diameter of the exterior member.

Abstract: A method of manufacturing an electrolytic capacitor according to the present invention includes the steps of: forming a capacitor element by winding an anode foil having a roughened surface on which a dielectric film is formed, a cathode foil, and a separator containing a synthetic fiber and a water-soluble binder; immersing the capacitor element in a chemical conversion solution containing water as a main solvent for re-chemical conversion; subjecting the capacitor element subjected to re-chemical conversion to first heat treatment at a temperature of not less than 60° C. and less than 100° C.; and subjecting the capacitor element subjected to the first heat treatment to second heat treatment at a temperature of not less than 150° C. and less than a melting point of the synthetic fiber.