Abstract: 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, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer containing repeating thiophene units of a certain formula.

Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body, a dielectric that overlies the anode body, a pre-coat that overlies the dielectric and that is formed from an organometallic compound, and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.

Abstract: 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, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles.

Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body that contains tantalum, a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units. Further, the capacitor exhibits a dielectric strength of about 0.6 volts per nanometer or more. The capacitor also exhibits a charge-discharge capacitance after being subjected to 3,000 cycles of a surge voltage and an initial capacitance prior to being subjected to the surge voltage, wherein the ratio of the charge-discharge capacitance to the initial capacitance is from about 0.75 to 1.

Abstract: A solid electrolytic capacitor comprising a capacitor element that contains a sintered porous anode body formed from a valve metal powder having a specific charge of about 50,000 ?F*V/g or more, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer is provided. The capacitor exhibits a normalized aged leakage current of about 8% or less and an anomalous charging current of about 1 amp or less.

Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element contains an anode body that includes tantalum, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer. The capacitor exhibits a normalized aged leakage current of about 20% or less.

Abstract: 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, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.

Abstract: A method for forming a solid electrolytic capacitor that includes an anode containing a valve metal composition, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. The method comprises forming the dielectric by a process that includes placing the anode into contact with an electrolyte containing an ionic liquid and a valve metal salt and applying a potential difference between the anode and a counter electrode to form a dielectric oxide layer.

Abstract: 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.

Abstract: 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, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.

Abstract: 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, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.

Abstract: A solid electrolytic capacitor comprising a capacitor element that contains a sintered porous anode body formed from a valve metal powder having a specific charge of about 50,000 ?F*V/g or more, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer is provided. The capacitor exhibits an anomalous charging current of about 0.25 amps or less when charged at a constant voltage rate increase of 120 volts per second, determined at a temperature of 23° C. and voltage of 16 volts.

Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body; a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric and that includes a conductive polymer and a depolarizer.

Abstract: 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, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles.

Abstract: 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.

Abstract: 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, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles.

Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body, a dielectric that overlies the anode body, a pre-coat that overlies the dielectric and that is formed from an organometallic compound, and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.

Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body that contains tantalum, a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units. Further, the capacitor exhibits a dielectric strength of about 0.6 volts per nanometer or more. The capacitor also exhibits a charge-discharge capacitance after being subjected to 3,000 cycles of a surge voltage and an initial capacitance prior to being subjected to the surge voltage, wherein the ratio of the charge-discharge capacitance to the initial capacitance is from about 0.75 to 1.

Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body; a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric and that includes a conductive polymer and a depolarizer.

Abstract: 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, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer containing repeating thiophene units of a certain formula.