SOLID ELECTROLYTE CAPACITOR FOR USE IN HIGH TEMPERATURE AND HIGH HUMIDITY CONDITIONS

摘要

A solid electrolyte capacitor (30) (44) is capable of exhibiting good electrical properties even under extreme conditions of high temperature and high humidity levels. More particularly, the capacitor (30) contains a capacitor element (33) which includes a sintered porous anode body (40), a dielectric which covers the anode body (40) and a solid electrolyte (44) which covers the dielectric. The solid electrolyte (44) contains a conductive polymer and an organometallic coupling agent. The capacitor (30) also contains a moisture barrier layer (63) that covers the solid electrolyte (44) and is formed from a hydrophobic elastomer that has a low surface energy so that it is not easily wettable by an aqueous medium.