Patent ID: 11942280
Assignee: TDK ELECTRONICS AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A capacitor comprising:
a first winding element comprising an anode foil, separators and a cathode foil which are wound around an axis and which are covered by a conductive polymer, wherein the first winding element comprises a liquid electrolyte; and
a second winding element comprising an anode foil, separators and a cathode foil which are wound around an axis and which are covered by a conductive polymer, wherein the second winding element comprises a liquid electrolyte,
wherein each winding element has a height of more than 12 mm,
wherein the first and second winding elements are arranged in a common can,
wherein each winding element comprises a tab connected to a respective anode foil and a tab connected to a respective cathode foil,
wherein the tabs connected to the anode foils are connected to each other and the tabs connected to the cathode foils are connected to each other such that the first and second winding elements are electrically connected parallel to each other,
wherein the respective cathode foil has a larger extent in a direction of the height of the respective winding element than the respective anode foil and a number of windings of the respective cathode foil is at least by one larger than a number of windings of the respective anode foil,
wherein the anode foils and the cathode foils are arranged and dimensioned such that, in the winding elements, the respective anode foil is embedded completely between the respective cathode foil on both sides, and
wherein the capacitor is a hybrid polymer aluminum electrolytic capacitor.