Patent ID: 9190215
Filing Date: 2015-11-17
Classification: H01G

Abstract:
1. An electrolytic capacitor comprising: a capacitance portion that includes an anode foil and a cathode foil wound around, a separator being provided between the anode foil and the cathode foil; a first conductor bar connected to the anode foil; a second conductor bar connected to the cathode foil; a casing that houses the capacitance portion, the first conductor bar, and the second conductor bar and is provided with an opening; a sealing material fitted to the opening, the sealing material including a first hole and a second hole; a first lead welded to the first conductor bar within the first hole forming a first welding portion; a second lead welded to the second conductor bar the second hole forming a second welding portion; a first insulating filler filled between the first hole and the first lead, and at least partially surrounding the first welding portion, wherein the first insulating filler being formed in a porous state having air permeability; and a second insulating filler filled between the second hole and the second lead, and at least partially surrounding the second welding portion, wherein the second insulating filler being formed in a porous state having air permeability.