Solid electrolytic capacitor assembly

    公开(公告)号:US10892095B2

    公开(公告)日:2021-01-12

    申请号:US15782080

    申请日:2017-10-12

    Abstract: A capacitor assembly that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor assembly includes a capacitor element, which comprises a porous anode body that contains a valve metal compound, a dielectric that overlies the anode body and includes an oxide of the valve metal compound, and a solid electrolyte that overlies the dielectric. The solid electrolyte includes a conductive polymer and a hydroxy-functional polymer. Further, the capacitor element comprises an organofunctional silane compound that is bonded to the oxide of the dielectric and is capable of bonding to the hydroxy-functional polymer.

    Ultrahigh voltage solid electrolytic capacitor
    36.
    发明授权
    Ultrahigh voltage solid electrolytic capacitor 有权
    超高压固体电解电容器

    公开(公告)号:US09053854B2

    公开(公告)日:2015-06-09

    申请号:US13773692

    申请日:2013-02-22

    Abstract: A capacitor for use in ultrahigh voltage environments is provided. During formation of the capacitor, the forming voltage employed during anodization is generally about 300 volts or more and at temperatures ranging from about 10° C. to about 70° C. Such conditions can substantially improve the quality and thickness of the dielectric without adversely impacting the uniformity and consistency of its surface coverage. In addition, the solid electrolyte is also formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe2+ or Fe3+ ions) that can lead to dielectric degradation, particularly at the ultrahigh voltages noted above.

    Abstract translation: 提供了一种用于超高压环境的电容器。 在形成电容器期间,在阳极氧化期间采用的成形电压通常为约300伏特或更高,并且在约10℃至约70℃的温度范围内。这样的条件可以显着改善电介质的质量和厚度,而不会有不利影响 其表面覆盖度的一致性和一致性。 此外,固体电解质也由预先形成的导电聚合物颗粒的分散体形成。 以这种方式,电解质可以保持通常不含能够导致电介质劣化的高能自由基(例如,Fe 2+或Fe 3+离子),特别是在上述超高电压下。

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