Patent ID: 9224541
Filing Date: 2015-12-29
Classification: H01G,Y02E

Abstract:
1. A capacitor assembly comprising: a capacitor element comprising an anode formed from a sintered porous tantalum body and a dielectric, wherein a solid electrolyte overlies the anode that includes a layer in direct contact with the dielectric that is formed from poly(3,4-ethylenedioxythiophene) particles and a polymeric counterion, wherein the layer is generally free of poly(3,4-ethylenedioxythiophene) formed via in situ polymerization; a housing that defines an interior space within which the capacitor element is positioned and hermetically sealed, wherein the housing comprises opposing first and second sidewalls and a lower wall, wherein the sidewalls include a metal, wherein the interior space has a gaseous atmosphere that contains an inert gas, wherein the inert gas includes nitrogen, helium, argon, xenon, neon, krypton, radon, or a combination thereof, and wherein inert gases constitute from about 50 wt. % to 100 wt. % of the gaseous atmosphere; 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 assembly exhibits a breakdown voltage of about 60 volts or more.