Abstract: A solid electrolytic capacitor includes an anode formed of a valve metal and having a roughened surface layer at a surface thereof, a dielectric layer formed of a valve metal oxide and formed on the anode, a cathode formed of a conductive polymer layer formed on the dielectric layer, an anode lead formed adjacent to and integrally with the anode, and a resist formed of an insulating material and delimiting the anode and the anode lead. The anode and the anode lead have a first stepped portion having both surfaces each cut in a thickness direction and covered with the resist, and the anode lead has a second stepped portion having both surfaces each cut deeper in the thickness direction than the first stepped portion.

Abstract: A solid electrolytic capacitor manufacturing method includes a process of removing a roughened surface layer (10a?) from a distal portion (13) of a metal member (10) and from part of an intermediate portion (12) adjacent to the distal portion (13), a process of forming a resist (40) on the distal portion (13) and the intermediate portion (12) of the metal member (10), a process of forming a conductive polymer layer (30) of a conductive polymer on a proximal portion (11) of the metal member (10), and a process of removing a resist (40?) and a surface layer portion (13?) of the metal member (10) from the distal portion (13) of the metal member (10).

Abstract: The present exemplary embodiment provides a conductive polymer having high conductivity and a method for producing the same, and a conductive polymer dispersion, and further provides a solid electrolytic capacitor having low ESR and a method for producing the same. A conductive polymer is produced by a method including the steps of dissolving a sulfonic acid group-containing resin having a weight average molecular weight of 2,000 or more and 50,000 or less and a compound represented by the following formula (1) in a solvent; mixing at least one monomer selected from pyrrole, thiophene, and derivatives thereof in an obtained solution; subjecting the monomer to chemical oxidative polymerization, using a persulfate, to obtain a conductive polymer; and washing the conductive polymer to remove the compound represented by the formula (1) contained in the conductive polymer. CnHn+2(OH)n??(1) wherein n represents an integer of 3 to 6.

Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having high conductivity and a method for producing the same, and particularly provides a solid electrolytic capacitor having low ESR and a method for producing the same. In an emulsion comprising a dopant of a low molecular organic acid or a salt thereof, obtained by emulsifying a monomer providing a conductive polymer, using a nonionic surfactant, in a water, the monomer is subjected to chemical oxidative polymerization, using an oxidant, to synthesize a conductive polymer. The obtained conductive polymer is purified, and then, the purified conductive polymer and an oxidant are mixed in an aqueous solvent containing a polyacid component to produce a conductive polymer suspension.

Abstract: Provided are a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension is produced as follows: a conductive polymer is synthesized by chemical oxidative polymerization of a monomer giving a conductive polymer by using an oxidant in a solvent containing a dopant consisting of polysulfonic acid or a salt thereof; the conductive polymer is purified; and the purified conductive polymer is mixed with an oxidant in an aqueous solvent containing a polyacid component.

Abstract: An electrically conductive polymer composition has high electrical conductivity, excellent water resistance, high density, and excellent smoothness. Also disclosed is a solid electrolyte capacitor which is prevented from the reduction in electrical conductivity, has low ESR, and also has excellent reliability. Further disclosed is a method for producing the solid electrolyte capacitor. The electrically conductive polymer composition is produced by removing a dispersion medium from an electrically conductive polymer suspension, wherein the electrically conductive polymer suspension includes: an electrically conductive polymer material including a dopant composed of a polyacid or a salt thereof and an electrically conductive polymer; at least one compound (A) selected from erythritol, xylitol and pentaerythritol; and the dispersion medium.

Abstract: An exemplary aspect of the invention provides a conductive polymer suspension for providing a conductive polymer material with high conductivity and a method for producing the same, and provides a solid electrolytic capacitor with low ESR and a method for producing the same. In an exemplary embodiment, a monomer providing a conductive polymer is subjected to chemical oxidative polymerization in a solvent comprising a dopant of an organic acid or a salt thereof, using an oxidant, to synthesize the conductive polymer; the conductive polymer is purified; the purified conductive polymer and an oxidant are mixed in an aqueous solvent comprising a polyacid; and an imidazole compound is further added to produce a conductive polymer suspension.

Abstract: There is provided a method for producing a solid electrolytic capacitor having an improved capacitance appearance ratio by forming a conductive polymer layer in a few steps. A method for producing a solid electrolytic capacitor obtained by forming solid electrolyte layer 5 and cathode 6 on dielectric layer 2 formed on anode body 1, which is a porous body of a valve action metal, includes the step of forming precoat layer 3 by the steps of impregnating the porous body with polyacid, water washing, and drying.

Abstract: In a solid electrolytic capacitor whose cathode is formed by forming an oxide film 2 on an anode-body valve-action metal 1, and forming a conductive polymer layer 3, a graphite layer 4, and a silver layer 5 in succession on the oxide film, the conductive polymer layer 3 contains a sulfonic acid ester compound. In this way, a solid electrolytic capacitor having a low ESR and an excellent moisture resistance and its manufacturing method can be provided.

Abstract: 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.

Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in a solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof; purifying the conductive polymer; and mixing the purified conductive polymer and an oxidant in an aqueous solvent containing a polyacid component.

Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension can be is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in an aqueous solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof, or a polyacid having a weight average molecular weight of less than 2,000 or a salt thereof.

Abstract: A conductive polymer having high conductivity and a solid electrolytic capacitor having low ESR are provided. A conductive polymer is synthesized using as a monomer a compound of a dimer to a decamer in which 3-alkyl five-membered heterocyclic rings are bonded at positions 2 and 5, being sterically controlled. Further, this conductive polymer is used as the solid electrolyte of a solid electrolytic capacitor.

Abstract: A conductive polymer having high conductivity and a solid electrolytic capacitor having low ESR are provided. A conductive polymer is synthesized using as a monomer a compound of a dimer to a decamer in which 3-alkyl five-membered heterocyclic rings are bonded at positions 2 and 5, being sterically controlled. Further, this conductive polymer is used as the solid electrolyte of a solid electrolytic capacitor.

Abstract: A solid electrolytic capacitor manufacturing method includes a process of removing a roughened surface layer (10a?) from a distal portion (13) of a metal member (10) and from part of an intermediate portion (12) adjacent to the distal portion (13), a process of forming a resist (40) on the distal portion (13) and the intermediate portion (12) of the metal member (10), a process of forming a conductive polymer layer (30) of a conductive polymer on a proximal portion (11) of the metal member (10), and a process of removing a resist (40?) and a surface layer portion (13?) of the metal member (10) from the distal portion (13) of the metal member (10).

Abstract: In a solid electrolytic capacitor including a porous valve-acting metal, an anode conductor has a large number of pores having openings on the surface thereof according to the porosity of the valve-acting metal. A solid electrolyte layer is formed on the surface of the anode conductor so as to be filled in at least a portion of each of the pores and to close the openings thereof. Further, a cathode conductor is formed on the solid electrolyte layer. Preferably, the solid electrolyte layer has a two-layer structure with two layers having different particle sizes.

Abstract: The present invention provides an electrode and an electrochemical cell which have a high capacity and are excellent in long term reliability. The present invention relates to a cell electrode comprising at least one organic compound polymer and a carbon material as a conductive auxiliary material wherein the included organic compound polymer is a compound causing an oxidation-reduction reaction based on the electrochemical proton adsorption and desorption and wherein the carbon material is heat treated at 500° C. or higher; and relates to an electrochemical cell using the same.

Abstract: An electrochemical cell containing, as an electrode active material, a polyphenylquinoxaline compound represented by formula 1:

Abstract: This invention provides an electrode for an electrochemical cell in which an active material in an electrode material is a proton-conducting compound, wherein the electrode material comprises a nitrogen-containing heterocyclic compound or a polymer having a unit containing a nitrogen-containing heterocyclic moiety.

Abstract: This invention provides an electrode for an electrochemical cell in which an active material in an electrode material is a proton-conducting compound, wherein the electrode material comprises a nitrogen-containing heterocyclic compound or a polymer having a unit containing a nitrogen-containing heterocyclic moiety.