Method of printing a conductive ink onto a cathode surface to increase surface area and capacitance

Abstract

A method of processing a metal foil to produce a cathode for an electrolytic capacitor includes printing one or more layers of conductive ink on the metal foil to form a pattern of cathode plates, each of the one or more layers being a predetermined thickness, and the pattern arranged at a distance from a cathode tab and an edge of the cathode plates. The method also includes heating the deposited one or more layers of conductive ink to evaporate a solvent within the conductive ink such that conductive particles of the conductive ink remain deposited on the metal foil. The method further includes sintering the conductive particles and cutting the cathode plates from the metal foil, thereby producing the cathode plates suitable for use in the electrolytic capacitor.

Dependencies are inferred from the claim text.