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公开(公告)号：US09053854B2
公开(公告)日：2015-06-09
申请号：US13773692
申请日：2013-02-22
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Miloslav Uher , Tomas Karnik
CPC classification number: H01G9/0003 , H01G9/0032 , H01G9/0036 , H01G9/025 , H01G9/028 , H01G9/0525 , Y10T29/417
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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公开(公告)号：US20150077901A1
公开(公告)日：2015-03-19
申请号：US14027309
申请日：2013-09-16
Applicant: AVX Corporation
Inventor： Jan Petrzilek
CPC classification number: H01G9/10 , H01G9/0029 , H01G9/052 , H01G9/08 , H01G9/145
Abstract: A wet electrolytic capacitor that contains a casing within which is positioned an anode formed from an anodically oxidized sintered porous body and a fluidic working electrolyte is provided. The casing contains a composite coating disposed on a surface of a metal substrate. The composite coating includes a noble metal layer that overlies the metal substrate and a conductive polymer layer that overlies the noble metal layer.
Abstract translation: 提供一种湿电解电容器，其包含壳体，其内设有由阳极氧化的烧结多孔体和流体工作电解质形成的阳极。 壳体包含设置在金属基板的表面上的复合涂层。 复合涂层包括覆盖金属基底的贵金属层和覆盖在贵金属层上的导电聚合物层。
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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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公开(公告)号：US11763998B1
公开(公告)日：2023-09-19
申请号：US17320322
申请日：2021-05-14
Applicant: AVX Corporation
Inventor： Pavel Kucharczyk , Miloslav Uher , Jan Petrzilek
CPC classification number: H01G9/0525 , H01G9/0032 , H01G9/012 , H01G9/025 , H01G9/08 , H01G9/15 , H01G2009/05
Abstract: A solid electrolytic capacitor comprising a capacitor element that contains a sintered porous anode body formed from a valve metal powder having a specific charge of about 50,000 μF*V/g or more, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer is provided. The capacitor exhibits a normalized aged leakage current of about 8% or less and an anomalous charging current of about 1 amp or less.
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公开(公告)号：US11670461B2
公开(公告)日：2023-06-06
申请号：US17024932
申请日：2020-09-18
Applicant: AVX Corporation
Inventor： Romana Sulakova , Miloslav Uher , Jan Petrzilek
CPC classification number: H01G9/15 , C07D495/04 , C08L65/00 , H01G9/028 , H01G9/042 , H01G9/052 , H01G9/08 , H01G13/00 , C08L2203/20 , C08L2205/025 , C08L2205/14
Abstract: A capacitor that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric. The solid electrolyte contains an inner layer and an outer layer, wherein the inner layer is formed from an in situ-polymerized conductive polymer and the outer layer is formed from pre-polymerized conductive polymer particles. Further, the in-situ polymerized conductive polymer is formed from an alkylated thiophene monomer.
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Patent Agency Ranking
公开(公告)号：US11380492B1
公开(公告)日：2022-07-05
申请号：US16710039
申请日：2019-12-11
Applicant: AVX Corporation
Inventor： Pavel Kucharczyk , Miloslav Uher , Jan Petrzilek
Abstract: A solid electrolytic capacitor comprising a capacitor element that contains a sintered porous anode body formed from a valve metal powder having a specific charge of about 50,000 μF*V/g or more, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric that includes a conductive polymer is provided. The capacitor exhibits an anomalous charging current of about 0.25 amps or less when charged at a constant voltage rate increase of 120 volts per second, determined at a temperature of 23° C. and voltage of 16 volts.
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公开(公告)号：US11056285B2
公开(公告)日：2021-07-06
申请号：US16368953
申请日：2019-03-29
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Mitchell D. Weaver , Miloslav Uher
Abstract: A capacitor comprising a solid electrolytic capacitor element that contains a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte is provided. The solid electrolyte contains an interior conductive polymer layer overlying the dielectric, an adhesive film that overlies the interior conductive polymer layer, which may be formed by sequential vapor deposition. An exterior conductive polymer layer also overlies the adhesive film.
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公开(公告)号：US20210175022A1
公开(公告)日：2021-06-10
申请号：US17116044
申请日：2020-12-09
Applicant: AVX Corporation
Inventor： Pavel Kucharczyk , Miloslav Uher , Jan Petrzilek
Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body that contains tantalum, a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units. Further, the capacitor exhibits a dielectric strength of about 0.6 volts per nanometer or more. The capacitor also exhibits a charge-discharge capacitance after being subjected to 3,000 cycles of a surge voltage and an initial capacitance prior to being subjected to the surge voltage, wherein the ratio of the charge-discharge capacitance to the initial capacitance is from about 0.75 to 1.
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公开(公告)号：US20190392995A1
公开(公告)日：2019-12-26
申请号：US16445282
申请日：2019-06-19
Applicant: AVX Corporation
Inventor： Jiri Navratil , Lotfi Dejbara , Martin Biler , Jan Petrzilek
Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. An interfacial coating is disposed on at least a portion of the anode termination and/or cathode termination and is in contact with the casing material. The coating contains a hydrophobic resinous material and the adhesion strength of the casing material is about 5 newtons per square millimeter or more as determined at a temperature of about 23° C. and relative humidity of about 30%.
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公开(公告)号：US20190318881A1
公开(公告)日：2019-10-17
申请号：US16368953
申请日：2019-03-29
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Mitchell D. Weaver , Miloslav Uher
Abstract: A capacitor comprising a solid electrolytic capacitor element that contains a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte is provided. The solid electrolyte contains an interior conductive polymer layer overlying the dielectric, an adhesive film that overlies the interior conductive polymer layer, which may be formed by sequential vapor deposition. An exterior conductive polymer layer also overlies the adhesive film.
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