Solid Electrolytic Capacitor for Use in Extreme Conditions

    公开(公告)号:US20190198255A1

    公开(公告)日:2019-06-27

    申请号:US16286701

    申请日:2019-02-27

    CPC classification number: H01G9/10 H01G9/0029 H01G9/08 H01G9/15

    Abstract: A capacitor assembly that is capable of performing under extreme conditions, such as at high temperatures and/or high voltages, is provided. The ability to perform at high temperature is achieved in part by enclosing and hermetically sealing the capacitor element within a housing in the presence of a gaseous atmosphere that contains an inert gas, thereby limiting the amount of oxygen and moisture supplied to the solid electrolyte of the capacitor element. Furthermore, the present inventors have also discovered that the ability to perform at high voltages can be achieved through a unique and controlled combination of features relating to the formation of the anode, dielectric, and solid electrolyte. For example, the solid electrolyte is formed from a combination of a conductive polymer and a hydroxy-functional nonionic polymer.

    Low profile multi-anode assembly
    104.
    发明授权

    公开(公告)号:US10014108B2

    公开(公告)日:2018-07-03

    申请号:US14657194

    申请日:2015-03-13

    CPC classification number: H01G4/224 H01G9/012 H01G9/08 H01G9/15 H01G9/26

    Abstract: A capacitor assembly configured to effectively dissipate heat when exposed to a high ripple current is provided. The assembly includes a plurality of capacitor elements, each including an anode body and lead, a dielectric layer overlying the anode body, and a solid electrolyte. Each capacitor element is defined by upper and lower major surfaces, first opposing minor surfaces, and second opposing minor surfaces. The major surfaces each have a surface area greater than that of each of the minor opposing surfaces. A hermetically sealed housing having a length, width, and height defines an interior cavity within which the plurality of capacitor elements are positioned. The ratio of the length to the height ranges from about 2 to about 80. Further, the lower major face of each capacitor element faces a lower wall of the housing, where the lower wall is defined by the housing's length and width.

    Solid Electrolytic Capacitor Assembly
    108.
    发明申请

    公开(公告)号:US20180108478A1

    公开(公告)日:2018-04-19

    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.

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