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AssigneeShowa Denko K.K.
InventorsAtsushi Sakai, Ryuji Monden, Toru Sawaguchi, Katsuhiko Yamazaki, Yuji Furuta, Hideki Ohata
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A solid electrolytic capacitor comprising (1) an electrically conducting polymer composition formed on the surface of an oxide film which is formed on a valve-acting metal, by specifying the viscosity of an oxidizing agent solution and/or a monomer solution, particularly by specifying the viscosity to less than about 100 cp, (2) an electroconducting polymer composition formed on the surface of an oxide film layer which is formed on a valve-acting metal, wherein the electroconducting polymer layer comprising a monomer compound or a derivative thereof as a repeating unit and also containing an anionic dopant is polymerized by setting the humidity in the atmosphere to from about 10% to less than about 60%; (3) an anode body having provided on the outer surface thereof a solid electrolyte formed of an electrically conducting polymer containing a lamellar structure, wherein the solid electrolyte provided on the dielectric film formed on a valve acting metal occupies from about 10 to about 95% of the space in a pore of the electrode, and (4) a method for producing a solid electrolytic capacitor comprising forming a dielectric film on a porous valve acting metal and forming a solid electrolyte in the dielectric film, wherein the solid electrolyte is formed to cover about 60% or more of the dielectric film.
A method for producing a solid electrolytic capacitor, comprising covering a valve-acting metal anode foil having formed on the surface thereof an oxide dielectric film with repeating sequence of a solution containing a monomer of an electrically conducting polymer and a solution containing an oxidizing agent and then polymerizing to form an electrically conducting polymer composition film on the dielectric film, wherein the solution containing a monomer of an electrically conducting polymer and/or the solution containing an oxidizing agent has a viscosity of less than 100 cp at 23° C.
A method for producing a solid electrolytic capacitor, comprising coating a solution containing a monomer of an electroconducting polymer and a solution containing an oxidizing agent in repeating sequence on a valve-acting metal anode having formed on the surface thereof an oxide dielectric film, and then polymerizing wherein the electroconducting polymer is formed by setting the humidity in the atmosphere of polymerization process to from 10% to less than 60%.
A solid electrolytic capacitor comprising a porous valve acting metal having formed thereon a dielectric film and a solid electrolyte formed on the dielectric film, wherein the solid electrolyte occupies from 10 to 95% of the space within a pore of said porous metal.
A solid electrolytic capacitor comprising a porous valve acting metal having formed thereon a dielectric film and a solid electrolyte formed on the dielectric film, wherein the solid electrolyte covers 60% or more of said dielectric film.
A method for producing a solid electrolytic capacitor, comprising forming a dielectric film on a porous valve acting metal and forming a solid electrolyte on the dielectric film, wherein the solid electrolyte is formed to occupy from 10 to 95% of the space within a pore of said porous metal.
A method for producing a solid electrolytic capacitor comprising forming a dielectric film on a porous valve acting metal and forming a solid electrolyte in the dielectric film, wherein the solid electrolyte is formed to cover about 60% or more of the dielectric film.
A method for producing a solid electrolytic capacitor, comprising covering a valve-acting metal anode foil having formed on the surface thereof an oxide dielectric film with repeating sequence of a solution containing a monomer of an electrically conducting polymer and a solution containing an oxidizing agent and then polymerizing to form an electrically conducting polymer composition film on the dielectric film, wherein the solution containing a monomer of the electrically conducting polymer and/or the solution containing the oxidizing agent has a viscosity of less than about 100 cp at 23° C.;
A method for producing a solid electrolytic capacitor, comprising covering a valve-acting metal anode foil having formed on the surface thereof an oxide dielectric film with repeating sequence of a solution containing a monomer of an electrically conducting polymer and a solution containing an oxidizing agent and then polymerizing to form an electrically conducting polymer composition film on the dielectric film, wherein the solution containing a monomer of the electrically conducting polymer and/or the solution containing the oxidizing agent has a viscosity of less than about 100 cp at 23° C.;
Dependencies are inferred from the claim text.