Patent ID: 8824122

Claim:
A capacitor assembly comprising: a capacitor element comprising an anode formed from an anodically oxidized, sintered porous body and a solid electrolyte overlying the anode, wherein the solid electrolyte is formed from a dispersion of conductive polymer particles, wherein the conductive polymer particles have an average diameter of from about 4 nanometers to about 50 nanometers, wherein the solid electrolyte further comprises a polymeric counterion, and wherein the solid electrolyte is generally free of conductive polymers formed via in situ polymerization; a housing that defines an interior space within which the capacitor element is positioned, wherein the interior space has a gaseous atmosphere that contains an inert gas, further wherein the housing comprises metal opposing first and second sidewalls and a metal lower wall; an anode termination that is in electrical connection with the anode body; and a cathode termination that is in electrical connection with the solid electrolyte, wherein the capacitor element is hermetically sealed within the housing, wherein the capacitor assembly exhibits a breakdown voltage of about 60 volts or more.