Patent application number | Description | Published |
20090056093 | METHOD FOR MANUFACTURING A SOLID ELECTROLYTIC CAPACITOR - A method for manufacturing a solid electrolytic capacitor has the steps of: mixing valve metal powders with organic binder for granulation, press-molding granulated powders embedded with a valve metal lead, sintering a press-molded compact in vacuum to produce a sintered body, and anodizing the sintered body to form a dielectric oxide film layer. The method further has a step of performing a cathode electrolytic cleaning to the sintered body before the step of forming the dielectric oxide film layer. The cathode electrolytic cleaning is performed in an acid solution, which is a mixed acid solution of hydrofluoric acid, nitric acid, and sulfuric acid. | 03-05-2009 |
20090147446 | Solid electrolytic capacitor and manufacturing method thereof - The present invention provides a solid electrolytic capacitor having sufficiently low impedance at high frequencies in which a conductive polymer formed on a dielectric oxide film has good adherence to the dielectric oxide film, and a manufacturing method of the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention includes a valve metal; a dielectric oxide film layer formed on a surface of the valve metal; and a solid electrolyte layer, comprising a conductive polymer layer, formed on the dielectric oxide film layer. The conductive polymer layer contains, as an additive, 0.1 wt % to 30 wt % of an organic oligomer having an average degree of polymerization of 2 to 100. | 06-11-2009 |
20100065434 | METHOD OF MANUFACTURING A SOLID ELECTROLYTIC CAPACITOR WITH A SUFFICIENTLY LOW IMPEDANCE IN A HIGH FREQUENCY RANGE - In a method of manufacturing a solid electrolytic capacitor in which an electrolyte layer containing a conductive polymer is formed by chemical oxidative polymerization on a dielectric oxide film layer formed by anodizing surfaces of a valve metal, an ammonium peroxodisulfate solution adjusted to pH 6 to 8 is used as an oxidant in forming the conductive polymer layer. | 03-18-2010 |
20100091432 | Conductive polymer composition, method of producing the same, and solid electrolytic capacitor - A conductive polymer composition with excellent water resistance and conductivity, and a solid electrolytic capacitor with low ESR, excellent reliability, and especially moisture resistance. The conductive polymer composition includes a conductive polymer, a polyanion that includes a hydrophilic group, where the polyanion functioning as a dopant of the conductive polymer. At least a part of the hydrophilic group of the polyanion is condensed with an epoxy group in a compound with one epoxy group. A solid electrolytic capacitor of the present invention includes the conductive polymer composition. | 04-15-2010 |
20100254072 | Solid electrolytic capacitor and its manufacturing method - In a solid electrolytic capacitor whose cathode is formed by forming an oxide film | 10-07-2010 |
20130135790 | ELECTROCONDUCTIVE POLYMER COMPOSITION, ELECTROCONDUCTIVE POLYMER MATERIAL, ELECTROCONDUCTIVE SUBSTRATE, ELECTRODE AND SOLID ELECTROLYTIC CAPACITOR - The problem is to provide an electroconductive polymer composition in which, when a layer containing an electroconductive polymer material is formed, the thickness can arbitrarily be controlled and the layer has a high electroconductivity. The electroconductive polymer composition according to the present invention contains an electroconductive polymer, at least one of water and a water-miscible organic solvent, and a polymer having a urea group as a thickener. By the electroconductive polymer composition according to the present invention, when a layer containing an electroconductive polymer material is formed, the thickness can arbitrarily be controlled even if the amount of a thickener added is made small, and the layer containing an electroconductive polymer material having a high electroconductivity can be formed. | 05-30-2013 |
20130163149 | ELECTROCONDUCTIVE POLYMER COMPOSITION, ELECTROCONDUCTIVE POLYMER MATERIAL, ELECTROCONDUCTIVE SUBSTRATE, ELECTRODE AND SOLID ELECTROLYTIC CAPACITOR - Provided is an electroconductive polymer composition with a good film forming property. Also, provided is an clectroconductive polymer material with a high electroconductivity and a high transparency as well as an electroconductive substrate having the electroconductive polymer material on a substrate, and an electrode. Further, provided is an electronic device having the electrode as well as a solid electrolytic capacitor with a high capacitance and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer in which a dopant is doped, a water-soluble polymer resin, and a solvent which contains water and an organic solvent whose dielectric constant is higher than that of water. | 06-27-2013 |
20130163150 | ELECTROCONDUCTIVE POLYMER COMPOSITION, ELECTROCONDUCTIVE POLYMER MATERIAL, ELECTROCONDUCTIVE SUBSTRATE, ELECTRODE AND SOLID ELECTROLYTIC CAPACITOR - Provided is an electroconductive polymer composition with a good film forming property and a high electroconductivity. Also, provided is an electroconductive polymer material and an electroconductive substrate with a high electroconductivity and transparency. Further, provided is a solid electrolytic capacitor with a high capacity and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer obtained by an oxidation polymerization by using an oxidant in a reaction solution which contains at least one monomer selected from the group consisting of pyrrole, thiophene and derivatives thereof, a polyacid or a salt thereof as a dopant, and a solvent containing water and an aprotic solvent. | 06-27-2013 |
20130222978 | ELECTROCONDUCTIVE POLYMER SUSPENSION SOLUTION, ELECTROCONDUCTIVE POLYMER MATERIAL, AND ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME - The present invention provides an electroconductive polymer suspension solution and an electroconductive polymer material which has a high electroconductivity and in which the time-related deterioration of the electroconductivity is suppressed. Also, the present invention provides an electrolytic capacitor with a low ESR using the electroconductive polymer material as a solid electrolyte and a method for producing the same. | 08-29-2013 |
20130229750 | SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING THE SAME, AND ELECTROCONDUCTIVE POLYMER COMPOSITION - The present invention provides an electroconductive polymer composition for a solid electrolytic capacitor which has a high electroconductivity and an excellent heat resistance. Also, the present invention provides a solid electrolytic capacitor having a low ESR and an excellent heat resistance. | 09-05-2013 |
20130236636 | ELECTROCONDUCTIVE POLYMER SOLUTION, ELECTROCONDUCTIVE POLYMER COMPOSITION, AND SOLID ELECTROLYTIC CAPACITOR THEREWITH AND METHOD FOR PRODUCING SAME - The present invention provides an electroconductive polymer solution in which the good dispersibility is maintained and the pH is arbitrarily adjusted, and an electroconductive polymer composition having an excellent heat resistance. Further, the present invention provides a solid electrolytic capacitor having an excellent reliability. | 09-12-2013 |
20140022705 | ELECTROCONDUCTIVE POLYMER SOLUTION, ELECTROCONDUCTIVE POLYMER MATERIAL AND METHOD FOR PRODUCING SAME, AND SOLID ELECTROLYTIC CAPACITOR - This is to provide an electroconductive polymer material which has excellent adhesion to a base and excellent water resistance. Also, this is to provide a solid electrolytic capacitor which has excellent water resistance by using the same. An electroconductive polymer solution according to the present invention contains an electroconductive polymer, at least one water-soluble multivalent alcohol, and at least one oxoacid having two or more hydroxy groups. Since a resin obtained by carrying out a polycondensation reaction of the water-soluble multivalent alcohol and the oxoacid has a cross-linked structure, an electroconductive polymer having lower water-absorbing property and more excellent water resistance in comparison with a resin having a linear structure can be obtained. | 01-23-2014 |
20140092529 | ELECTROCONDUCTIVE POLYMER SOLUTION AND METHOD FOR PRODUCING THE SAME, ELECTROCONDUCTIVE POLYMER MATERIAL, AND SOLID ELECTROLYTIC CAPACITOR USING THE SAME AND METHOD FOR PRODUCING THE SAME - Provided are an electroconductive polymer solution in which the carbon material has excellent dispersibility, an electroconductive polymer material which has a high electroconductivity and which can be produced by a simple method, and a solid electrolytic capacitor and a method for producing the same which has a low ESR without increasing a leakage current. An electroconductive polymer solution according to an exemplary embodiment of the invention contains an electroconductive polymer, a polysulfonic acid or a salt thereof which functions as a dopant to the electroconductive polymer, a mixture of a polyacid and a carbon material, and a solvent. | 04-03-2014 |
20140168858 | ELECTROCONDUCTIVE POLYMER SOLUTION AND METHOD FOR PRODUCING THE SAME, ELECTROCONDUCTIVE POLYMER MATERIAL, AND SOLID ELECTROLYTIC CAPACITOR - Provided is an electroconductive polymer solution containing an electroconductive polymer having high chemical resistance and a high electroconductivity. It is an electroconductive polymer solution, containing an electroconductive polymer having thiophene, aniline, pyrrole, or a derivative thereof as a repeating unit, wherein a dopant or a salt thereof having an amide bond and an anion group is doped into the electroconductive polymer. | 06-19-2014 |
20140185192 | SOLID ELECTROLYTIC CAPACITOR - Provided is a solid electrolytic capacitor having a low initial ESR in which the ESR increase with time can be suppressed. It is a solid electrolytic capacitor, including an electroconductive polymer layer, a graphite layer on the electroconductive polymer layer, and a silver layer on the graphite layer, wherein the electroconductive polymer layer and the graphite layer, and/or, the graphite layer and the silver layer are bonded by a chemical bond. | 07-03-2014 |