Solid electrolytic capacitor for use under high temperature and humidity conditions

A solid electrolytic capacitor that is capable of exhibiting good electrical properties even under the extreme conditions of high temperature and humidity levels is provided. More particularly, the capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric. The solid electrolytecontains a conductive polymer and an organometallic coupling agent. The capacitor also contains a moisture barrier layer that overlies the solid electrolyte and is formed from a hydrophobic elastomerthat has a low surface energy such that it is not readily wettable by an aqueous medium. 本发明涉及一种固体电解电容器，其即使在高温和高湿度水平的极端条件下仍能表现出良好的电气性能。更特别地，电容器包含一电容器元件，该电容器元件包括烧结的多孔阳极体、覆盖阳极体的电介质和覆盖电介质的固体电解质。所述固体电解质包括导电聚合物和有机金属偶联剂。电容器还包括覆盖固体电解质并由疏水性弹性体形成的隔湿层，该疏水性弹性体具有低的表面能，使其不容易被含水介质润湿。