A method for producing a tantalum dry - electrolyte - capacitor

摘要

A method of producing a tantalum dry-electrolytic capacitor which comprises a sintered tantalum anode having applied thereto, by a forming process, an dielectric oxide layer and a semiconducting manganese dioxide cathode layer, with the latter being coated with a graphite layer serving as current supply, in which, after formation of the manganese dioxide layer, a thin layer of manganese dioxide is removed from the surface thereof by chemical treatment, following which the cathode is coated with the desired graphite layer.