Patent ID: 7916456
Filing Date: 2011-03-29
Classification: H01G,Y02E

Abstract:
1. A solid electrolytic capacitor comprising: an anode body made of a valve metal; a dielectric oxide layer formed on the anode body; a solid electrolyte layer formed on the dielectric oxide layer; a carbon layer formed on the solid electrolyte layer, the carbon layer containing carbon particles, and one of a first additive and a second additive, the first additive being formed from at least one of those selected from a group consisting of hydrated silica and silicate, the second additive being formed from at least one of those selected from a group consisting of a condensation product of an aromatic sulfonic acid with formaldehyde, a condensation product of an aromatic sulfonate with formaldehyde, polystyrene sulfonic acid, and polystyrene sulfonate; a conductor layer formed on the carbon layer; an anode terminal connected to the anode body; and a cathode terminal connected to the conductor layer; wherein the carbon layer contains magnesium aluminum silicate as the first additive.