Abstract: The present invention relates to a capacitor comprising an electrically conductive housing having a housing inner surface and a housing interior substantially defined by the housing inner surface, at least one first electrode having a first polarity and being arranged in the housing interior, at least one separator element being arranged between the housing inner surface and said at least one first electrode, and an electrically conductive coating being arranged between the housing inner surface and the at least one separator element. According to invention, the housing inner surface comprises at least one recess, and the electrically conductive coating is arranged in the at least one recess.

Abstract: The invention relates to a method for manufacturing a structured cathode of an electrolytic capacitor, comprising the following steps: a) filling an electrically conductive coating composition into a micro extruder; b) moving the micro extruder with a computer-assisted electric movement system relatively to a cathode current collector to be coated, wherein the movement system allows a relative movement between the micro extruder and the cathode current collector with at least three degrees of freedom; c) applying the coating composition in a desired thickness and in a desired pattern onto the cathode current collector without contacting the cathode current collector with the micro extruder.

Abstract: The invention relates to methods for manufacturing an energy storage of an electrolytic capacitor, to a method for manufacturing a foil electrode of an aluminum electrolytic capacitor, to a device for manipulating a component of an aluminum electrolytic capacitor, to specifically designed foil electrodes for an aluminum electrolytic capacitor, to a method and a device for analyzing a quality of a section of paper to be used as separator of an electrolytic capacitor, and to a specifically designed electrolytic capacitor.

Abstract: The invention relates, amongst others, to a feedthrough pin of an electrolytic capacitor for contacting an electrode of the electrolytic capacitor and providing an electrical contact of the electrolytic capacitor on an outside of the electrolytic capacitor, the feed-through pin comprising a longitudinally extending body. According to an aspect of the invention, a first circumferential protrusion is arranged between a first section of the longitudinally extended body and a second section of the longitudinally extended body, wherein the first circumferential protrusion runs around a longitudinal axis of the longitudinally extended body and extends radially outwards over an outer contour of the first section of the longitudinally extended body and an outer contour of the second section of the longitudinally extended body.

Abstract: The present invention relates to a capacitor having a metal current collector, a conductive adhesion layer applied on the metal current collector, and an electrode active layer applied on the conductive adhesion layer, wherein the adhesion layer comprises a conductive non-carbide metal compound, particularly a metal oxide or metal nitride. The present invention further relates to a method of manufacture thereof as well a medical device comprising such capacitor.