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.

A method for forming a capacitor, a capacitor formed thereby and an improved composition for a conductive coating are described. The method includes providing an anode, forming a dielectric on the anode and forming a cathode layer over the dielectric by applying a monoamine, a weak acid and a conductive polymer.

A method for forming a capacitor, a capacitor formed thereby and an improved composition for a conductive coating are described. The method includes providing an anode, forming a dielectric on the anode and forming a cathode layer over the dielectric by applying a monoamine, a weak acid and a conductive polymer.

A method for production of a porous body containing a conductive polymer comprising impregnating a porous body with a conductive polymer composition comprising component (a) a conductive polymer and component (b) a solvent, and drying the porous body after impregnation at a temperature lower than the boiling point of the solvent by 10° C. or more, followed by drying at a temperature higher than or equal to the boiling point of the solvent.

A device such as, for example, an energy storage device or a micro-resistor, is disclosed which includes a silicon based electrode in which decreased interfacial resistance/impedance throughout the charge-mobile region of the device is provided. The decreased interfacial resistance/impedance is provided by forming an interfacial additive composite layer composed of a molten lithium containing salt layer and a layer of a Li-salt containing conductive polymeric adhesive material between the silicon based electrode and a solid polymer electrolyte layer. The presence of such an interfacial additive composite layer increases the ion and electron mobile dependent performances at the silicon based electrode interface due to significant decrease in the resistance/impedance that is observed at the respective interface as well as the impedance observed in the bulk of the device.

A device such as, for example, an energy storage device or a micro-resistor, is disclosed which includes a silicon based electrode in which decreased interfacial resistance/impedance throughout the charge-mobile region of the device is provided. The decreased interfacial resistance/impedance is provided by forming an interfacial additive composite layer composed of a molten lithium containing salt layer and a layer of a Li-salt containing conductive polymeric adhesive material between the silicon based electrode and a solid polymer electrolyte layer. The presence of such an interfacial additive composite layer increases the ion and electron mobile dependent performances at the silicon based electrode interface due to significant decrease in the resistance/impedance that is observed at the respective interface as well as the impedance observed in the bulk of the device.

A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, wherein the solid electrolyte includes a conductive polymer layer, and a moisture barrier that overlies the conductive polymer layer.

The application provides a conductive polymer, comprising a segment obtained by polymerizing a polymer monomer, wherein the polymer monomer comprises a compound represented by Formula I:

##STR00001##

wherein Y is selected from one of NH and S; R.sub.1 and R.sub.2 are independently selected from H, an optionally substituted linear or branched alkyl group, optionally substituted cycloalkyl group, optionally substituted aryl group, optionally substituted aralkyl group, optionally substituted alkoxy group or hydroxyl group, or an organic group containing at least one of a carboxyl group, sulfonic acid group and phosphate group, and at least one of R.sub.1 and R.sub.2 is an organic group containing at least one of carboxyl group, sulfonic acid group and phosphate group. Meanwhile, the application discloses a capacitor comprising the conductive polymer and a preparation method thereof. The conductive polymer provided by the application has a lower ESR and stable electrical performance.

The application provides a conductive polymer, comprising a segment obtained by polymerizing a polymer monomer, wherein the polymer monomer comprises a compound represented by Formula I:

##STR00001##

wherein Y is selected from one of NH and S; R.sub.1 and R.sub.2 are independently selected from H, an optionally substituted linear or branched alkyl group, optionally substituted cycloalkyl group, optionally substituted aryl group, optionally substituted aralkyl group, optionally substituted alkoxy group or hydroxyl group, or an organic group containing at least one of a carboxyl group, sulfonic acid group and phosphate group, and at least one of R.sub.1 and R.sub.2 is an organic group containing at least one of carboxyl group, sulfonic acid group and phosphate group. Meanwhile, the application discloses a capacitor comprising the conductive polymer and a preparation method thereof. The conductive polymer provided by the application has a lower ESR and stable electrical performance.

A capacitor with a seat plate includes a capacitor main body and a seat plate that holds the capacitor main body. The capacitor main body includes a capacitor element, a case having an opening for housing the capacitor element, a sealing member that closes the opening of the case, and a plurality of lead terminals each penetrating the sealing member and the seat plate. The seat plate includes a heat dissipation member, and has a first surface and a second surface opposite to the first surface. The heat dissipation member is exposed at the first surface and the second surface. The capacitor element is disposed at a side close to the second surface of the seat plate. The case is in contact with a region of the heat dissipation member. The region of the heat dissipation member is exposed at the second surface.