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公开(公告)号：US10770238B2
公开(公告)日：2020-09-08
申请号：US16026260
申请日：2018-07-03
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Martin Biler , Frantisek Priban
Abstract: A capacitor assembly that comprises a solid electrolytic capacitor element is provided. The capacitor assembly also comprises a casing material that encapsulates the capacitor element, an anode termination that is in electrical connection with the anode body and contains a portion that is positioned external to the casing material, and a cathode termination that is in electrical connection with the solid electrolyte and contains a portion that is positioned external to the casing material. A first hydrophobic coating is disposed in contact with the casing material and the external portion of the anode termination and a second hydrophobic coating is disposed in contact with the casing material and the external portion of the cathode termination.
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公开(公告)号：US20190172652A1
公开(公告)日：2019-06-06
申请号：US16205719
申请日：2018-11-30
Applicant: AVX Corporation
Inventor： Martin Biler , Jan Petrzilek
Abstract: A capacitor that comprises a capacitor element that includes an anode that contains a dielectric formed on a sintered porous body, a solid electrolyte overlying the anode that contains manganese dioxide, and a cathode coating is provided. The cathode coating includes a barrier layer overlying the solid electrolyte and a metallization layer overlying the barrier layer. The barrier layer contains a valve metal and the metallization layer contains a metal that exhibits an electrical resistivity of about 150 nΩ·m or less (at a temperature of 20° C.) and an electric potential of about −0.5 V or more.
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公开(公告)号：US09824826B2
公开(公告)日：2017-11-21
申请号：US14266937
申请日：2014-05-01
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
CPC classification number: H01G9/15 , H01G9/0032 , H01G9/0036 , H01G9/028 , H01G9/032 , H01G9/0525
Abstract: A solid electrolytic capacitor that contains an anode body, dielectric overlying the anode body, adhesion coating overlying the dielectric, and solid electrolyte overlying the adhesion coating. The solid electrolyte contains an inner conductive polymer layer and outer conductive polymer layer, at least one of which is formed from a plurality of pre-polymerized conductive polymer particles. Furthermore, the adhesion coating contains a discontinuous precoat layer containing a plurality of discrete nanoprojections of a manganese oxide (e.g., manganese dioxide).
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公开(公告)号：US20170148577A1
公开(公告)日：2017-05-25
申请号：US15406826
申请日：2017-01-16
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
CPC classification number: H01G9/15 , H01G9/0032 , H01G9/0036 , H01G9/025 , H01G9/028 , H01G9/0525 , H01G9/07
Abstract: A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The anode is formed from a finely divided powder (e.g., nodular or angular) having a relatively high specific charge. Despite the use of such high specific charge powders, high voltages can be achieved through a combination of features relating to the formation of the anode and solid electrolyte. For example, relatively high press densities and sintering temperatures may be employed to achieve “sinter necks” between adjacent agglomerated particles that are relatively large in size, which render the dielectric layer in the vicinity of the neck less susceptible to failure at high forming voltages.
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公开(公告)号：US20170084398A1
公开(公告)日：2017-03-23
申请号：US15362005
申请日：2016-11-28
Applicant: AVX Corporation
Inventor： Martin Biler , Jan Petrzilek , Ivana Zednickova
CPC classification number: H01G9/10 , H01G2/065 , H01G4/228 , H01G9/0036 , H01G9/012 , H01G9/032 , H01G9/042 , H01G9/0525 , H01G9/06 , H01G9/08 , H01G9/15 , H01G13/003 , H01G2009/05 , Y10T29/417
Abstract: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175° C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of moisture supplied to the manganese dioxide. In this manner, the solid electrolyte is less likely to undergo an adverse reaction under extreme conditions, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.
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Patent Agency Ranking
公开(公告)号：US20160268054A1
公开(公告)日：2016-09-15
申请号：US14657208
申请日：2015-03-13
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Jiri Navratil , Martin Biler
Abstract: A capacitor assembly for use in ultrahigh voltage environments is provided. To help achieve good performance at such high voltages, a variety of aspects of the assembly are controlled in the present invention, including the number of capacitor elements, the manner in which the capacitor elements are arranged and incorporated into the assembly, and the manner in which the capacitor elements are formed. For example, the capacitor assembly contains an anode termination to which the anode lead of a first capacitor element is electrically connected and a cathode termination to which the cathode of a second capacitor element is electrically connected. To help improve the breakdown voltage properties of the assembly, the capacitor elements are electrically connected in series such that the anode lead of the second capacitor element is also electrically connected to the cathode of the first capacitor element via a conductive member.
Abstract translation: 提供了一种用于超高压环境的电容器组件。 为了在这样的高电压下实现良好的性能，在本发明中控制组件的各种方面，包括电容器元件的数量，电容器元件的布置方式以及组装方式 电容器元件形成。 例如，电容器组件包含阳极端子，第一电容器元件的阳极引线电连接到该阳极端子，第二电容器元件的阴极电连接到阴极端子。 为了有助于提高组件的击穿电压特性，电容器元件串联电连接，使得第二电容器元件的阳极引线也经由导电构件电连接到第一电容器元件的阴极。
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公开(公告)号：US09406445B2
公开(公告)日：2016-08-02
申请号：US13941693
申请日：2013-07-15
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
CPC classification number: H01G9/025 , H01G9/0036 , H01G9/028
Abstract: A capacitor for use in relatively high voltage environments is provided. During formation, anodization may be carried out in a manner so that the dielectric layer possesses a relatively thick portion that overlies an external surface of the anode and a relatively thin portion that overlies an interior surface of the anode. In addition to employing a dielectric layer with a differential thickness, the solid electrolyte is also formed from the combination of pre-polymerized conductive polymer particles and a hydroxy-functional nonionic polymer.
Abstract translation: 提供了一种在较高电压环境中使用的电容器。 在形成期间，可以以这样的方式进行阳极氧化，使得电介质层具有覆盖在阳极的外表面上的相对厚的部分和覆盖在阳极的内表面上的相对薄的部分。 除了采用具有不同厚度的介电层之外，固体电解质也由预聚合的导电聚合物颗粒和羟基官能的非离子聚合物的组合形成。
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公开(公告)号：US08971020B2
公开(公告)日：2015-03-03
申请号：US13783634
申请日：2013-03-04
Applicant: AVX Corporation
Inventor： Martin Biler , Jan Petrzilek , Dirk H. Dreissig , Mitchell D. Weaver
CPC classification number: H01G9/0425 , C09D5/44 , C09D5/4476 , C25D9/02 , H01G9/0036 , H01G9/028 , H01G9/035 , H01G9/08 , H01G9/145
Abstract: A wet electrolytic capacitor that contains an anodically oxidized porous anode body, a cathode containing a metal substrate coated with a conductive coating, and a working electrolyte that wets the dielectric on the anode. The conductive coating contains a conductive copolymer having at least one thiophene repeating unit, as well as a pyrrole repeating unit and/or aniline repeating unit.
Abstract translation: 包含阳极氧化的多孔阳极体，含有涂覆有导电涂层的金属基底的阴极和润湿阳极上的电介质的工作电解质的湿式电解电容器。 导电涂层含有具有至少一个噻吩重复单元的导电共聚物，以及吡咯重复单元和/或苯胺重复单元。
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9.发明申请Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications 审中-公开用于高压和高温应用的固体电解电容器公开(公告)号：US20140368974A1
公开(公告)日：2014-12-18
申请号：US14474417
申请日：2014-09-02
Applicant: AVX Corporation
Inventor： Ladislav Vilc , Martin Biler , Stanislav Zednicek
CPC classification number: H01G9/10 , H01G2/10 , H01G9/0032 , H01G9/028 , H01G9/042 , H01G9/052 , H01G9/08 , H01G9/15 , H01G11/48 , H01G11/56 , Y02E60/13 , Y10T29/417
Abstract: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is 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 relatively high voltages (e.g., above about 60 volts). Furthermore, to help protect the stability of the solid electrolyte at high temperatures, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the solid electrolyte is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.
Abstract translation: 提供了一种用于高压和高温环境的电容器组件。 更具体地，电容器组件包括固体电解电容器元件，其包含阳极体，覆盖阳极的电介质和覆盖电介质的固体电解质。 为了有助于在高电压应用中使用电容器组件，通常期望固体电解质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），特别是在相对高的电压（例如高于约60伏）的情况下。 此外，为了有助于在高温下保护固体电解质的稳定性，在存在含有惰性气体的气体气氛的情况下，电容器元件被封闭并密封在壳体内。 据信壳体和惰性气体气氛能够限制供应到电容器的导电聚合物的氧气和水分的量。 以这种方式，固体电解质在高温环境中不太可能发生反应，从而增加电容器组件的热稳定性。 除了在高电压和高温环境中都能很好地发挥作用之外，本发明的电容器组件也可表现出高体积效率。
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公开(公告)号：US11004615B2
公开(公告)日：2021-05-11
申请号：US16205719
申请日：2018-11-30
Applicant: AVX Corporation
Inventor： Martin Biler , Jan Petrzilek
Abstract: A capacitor that comprises a capacitor element that includes an anode that contains a dielectric formed on a sintered porous body, a solid electrolyte overlying the anode that contains manganese dioxide, and a cathode coating is provided. The cathode coating includes a barrier layer overlying the solid electrolyte and a metallization layer overlying the barrier layer. The barrier layer contains a valve metal and the metallization layer contains a metal that exhibits an electrical resistivity of about 150 nΩ·m or less (at a temperature of 20° C.) and an electric potential of about −0.5 V or more.
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