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 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.