Process for producing electrolytic capacitors with a polymeric outer layer

A process for producing an electrolytic capacitor, in which at least one crosslinker e) is applied to a capacitor body at least comprising

• an electrode body of an electrode material and a dielectric which covers the surface of this electrode material, and
• a solid electrolyte at least comprising an electrically conductive material which completely or partially covers the dielectric surface,
• and, after applying the crosslinker e), at least one solution or a dispersion a) of a conjugated polymer b) is applied, and a polymeric outer layer is formed by at least partly removing the solvent or dispersant d),
• wherein the crosslinker e) comprises at least one diamine, triamine, oligoamine or polymeric amine or derivatives thereof, at least one cation and additionally at least one amine group, or at least one polyvalent cation, or the crosslinker e), after applying the solution or dispersion a), forms at least one polyvalent cation.