公开(公告)号：US08971019B2

公开(公告)日：2015-03-03

申请号：US13783766

申请日：2013-03-04

Applicant: AVX Corporation

Inventor： Martin Biler

IPC: H01G9/02 ,  H01G9/042 ,  C25D9/02 ,  H01G9/035 ,  H01G9/145 ,  C09D5/44 ,  H01G9/08

CPC classification number: H01G9/145 ,  C09D5/4476 ,  C25D9/02 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/035 ,  H01G9/0425 ,  H01G9/048 ,  H01G9/052 ,  H01G9/0525 ,  H01G9/08

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 an alkyl-substituted poly(3,4-ethylenedioxythiophene) having a certain structure. Such polymers can result in a higher degree of capacitance than many conventional types of coating materials. Further, because the polymers are generally semi-crystalline or amorphous, they can dissipate and/or absorb the heat associated with the high voltage. The degree of surface contact between the conductive coating and the surface of the metal substrate may also be enhanced in the present invention by selectively controlling the manner in which the conductive coating is formed.

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。 导电涂层含有具有一定结构的烷基取代的聚（3,4-亚乙基二氧噻吩）。 这种聚合物可以导致比许多常规类型的涂层材料更高的电容程度。 此外，因为聚合物通常是半结晶或无定形的，所以它们可以耗散和/或吸收与高电压相关的热量。 通过选择性地控制形成导电涂层的方式，本发明也可以提高导电涂层与金属基材表面之间的表面接触度。

公开(公告)号：US20140268501A1

公开(公告)日：2014-09-18

申请号：US14198729

申请日：2014-03-06

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek

IPC: H01G9/10 ,  H01G9/00

CPC classification number: H01G9/10 ,  H01G9/0029 ,  H01G9/08 ,  H01G9/15 ,  Y10T29/417

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.

Abstract translation: 提供能够在极端条件下（例如在高温和/或高电压下）执行的电容器组件。 在高温下执行的能力部分地通过在存在含有惰性气体的气体气氛的情况下将电容器元件封闭并密封在壳体内，从而限制供应到固体电解质的氧气和水分的量 电容元件。 此外，本发明人还发现，通过与阳极，电介质和固体电解质的形成相关的特征的独特且可控的组合可以实现在高电压下执行的能力。 例如，固体电解质由导电聚合物和羟基官能的非离子聚合物的组合形成。

公开(公告)号：US09928963B2

公开(公告)日：2018-03-27

申请号：US14657245

申请日：2015-03-13

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Jiri Navratil ,  Martin Biler

IPC: H01G9/00 ,  H01G9/08 ,  H01G9/15 ,  H01G9/052

CPC classification number: H01G9/0003 ,  H01G9/052 ,  H01G9/08 ,  H01G9/15

Abstract: A capacitor assembly that comprises a housing, a capacitor element that is hermetically sealed within the housing, and a thermally conductive material that at least partially encapsulates the capacitor element is provided. The capacitor element includes a sintered anode body, a dielectric overlying the anode body, and a solid electrolyte overlying the dielectric. The thermally conductive material has a thermal conductivity of about 1 W/m-K or more as determined in accordance with ISO 22007-2:2014.

公开(公告)号：US09754730B2

公开(公告)日：2017-09-05

申请号：US14657266

申请日：2015-03-13

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Jiri Navratil ,  Martin Biler

IPC: H01G9/15 ,  H01G9/08 ,  H01G9/032 ,  H01G9/028

CPC classification number: H01G9/15 ,  H01G9/028 ,  H01G9/032 ,  H01G9/08

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. A metal cylindrical housing having a lid and base, where the lid has a diameter in an −x direction and the metal cylindrical housing has a height in a −z direction, defines an interior cavity within which the plurality of capacitor elements are arranged about a central axis running along the −z direction. The ratio of the diameter to the height of the base ranges from about 1.5 to about 20. Further, the metal cylindrical housing is hermetically sealed.

公开(公告)号：US20170148574A1

公开(公告)日：2017-05-25

申请号：US15387795

申请日：2016-12-22

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Martin Biler

IPC: H01G9/025 ,  H01G9/15 ,  H01G9/052 ,  H01G9/00

CPC classification number: H01G9/025 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/052 ,  H01G9/15 ,  Y10T29/417

Abstract: A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR.

公开(公告)号：US09536673B2

公开(公告)日：2017-01-03

申请号：US13941710

申请日：2013-07-15

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Martin Biler

IPC: H01G9/00 ,  H01G9/025 ,  H01G9/028

CPC classification number: H01G9/025 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/052 ,  H01G9/15 ,  Y10T29/417

Abstract: A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR.

Abstract translation: 提供一种其电性能可在各种不同条件下稳定的电容器。 电容器的固体电解质由原位聚合的导电聚合物和羟基官能的非离子聚合物的组合形成。 这种原位聚合的导电聚合物的一个益处在于它不需要使用聚合抗衡离子（例如，聚苯乙烯磺酸阴离子）来补偿电荷，如常规的颗粒分散体，其倾向于导致离子极化和不稳定的电性能， 特别是在上述低温下。 此外，据信羟基官能的非离子聚合物可以改善聚合物和内部电介质的表面之间的接触程度，这意外地增加电容性能并降低ESR。

公开(公告)号：US09236192B2

公开(公告)日：2016-01-12

申请号：US13967462

申请日：2013-08-15

Applicant: AVX Corporation

Inventor： Martin Biler ,  Ladislav Vilc

IPC: H01G9/00 ,  H01G4/228 ,  H01G9/10 ,  H01G9/025 ,  H01G9/012 ,  H01G9/08 ,  H01G9/15

CPC classification number: H01G9/10 ,  H01G9/012 ,  H01G9/025 ,  H01G9/08 ,  H01G9/15

Abstract: A capacitor assembly that contains a solid electrolytic capacitor element positioned within a multi-layered casing is provided. The casing contains an encapsulant layer that overlies the capacitor element and a moisture barrier layer that overlies the encapsulant layer. Through careful control of the materials employed in the casing, the present inventor has discovered that the resulting capacitor assembly can be mechanically stable while also exhibiting electrical properties in the presence of high humidity levels (e.g., relative humidity of 85%). For example, the encapsulant layer may be formed from a thermoset resin (e.g., epoxy) that is capable of providing the capacitor element with mechanical stability. The moisture barrier layer may likewise be formed from a hydrophobic material.

Abstract translation: 提供一种电容器组件，其包含位于多层壳体内的固体电解电容器元件。 壳体包含覆盖电容器元件的密封剂层和覆盖在密封剂层上的防潮层。 通过仔细控制套管中使用的材料，本发明人发现所得的电容器组件可以机械稳定，同时在高湿度水平（例如相对湿度为85％）的情况下也表现出电性能。 例如，密封剂层可以由能够为电容器元件提供机械稳定性的热固性树脂（例如环氧树脂）形成。 防潮层同样可以由疏水材料形成。

公开(公告)号：US09053861B2

公开(公告)日：2015-06-09

申请号：US13783656

申请日：2013-03-04

Applicant: AVX Corporation

Inventor： Mitchell D. Weaver ,  Dirk H. Dreissig ,  Jan Petrzilek ,  Martin Biler ,  David Masheder ,  Ian Pinwill

IPC: H01G9/042 ,  C25D9/02 ,  H01G9/145 ,  C09D5/44 ,  H01G9/08 ,  C09D5/24

CPC classification number: H01G9/0425 ,  C09D5/24 ,  C09D5/4476 ,  C25D9/02 ,  H01G9/0036 ,  H01G9/028 ,  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 is formed through anodic electrochemical polymerization (“electro-polymerization”) of a precursor colloidal suspension on the surface of the substrate. The colloidal suspension includes a precursor monomer, ionic surfactant, and sulfonic acid, which when employed in combination can synergistically improve the degree of surface coverage and overall conductivity of the coating.

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。 导电涂层通过基底表面上的前体胶体悬浮液的阳极电化学聚合（“电聚合”）形成。 胶态悬浮液包括前体单体，离子表面活性剂和磺酸，当组合使用时，可以协同地提高涂层的表面覆盖度和整体导电性。

公开(公告)号：US20150049419A1

公开(公告)日：2015-02-19

申请号：US13967462

申请日：2013-08-15

Applicant: AVX Corporation

Inventor： Martin Biler ,  Ladislav Vilc

IPC: H01G9/10 ,  H01G9/025

CPC classification number: H01G9/10 ,  H01G9/012 ,  H01G9/025 ,  H01G9/08 ,  H01G9/15

Abstract: A capacitor assembly that contains a solid electrolytic capacitor element positioned within a multi-layered casing is provided. The casing contains an encapsulant layer that overlies the capacitor element and a moisture barrier layer that overlies the encapsulant layer. Through careful control of the materials employed in the casing, the present inventor has discovered that the resulting capacitor assembly can be mechanically stable while also exhibiting electrical properties in the presence of high humidity levels (e.g., relative humidity of 85%). For example, the encapsulant layer may be formed from a thermoset resin (e.g., epoxy) that is capable of providing the capacitor element with mechanical stability. The moisture barrier layer may likewise be formed from a hydrophobic material.

Abstract translation: 提供一种电容器组件，其包含位于多层壳体内的固体电解电容器元件。 壳体包含覆盖电容器元件的密封剂层和覆盖在密封剂层上的防潮层。 通过仔细控制套管中使用的材料，本发明人发现所得的电容器组件可以机械稳定，同时在高湿度水平（例如相对湿度为85％）的情况下也表现出电性能。 例如，密封剂层可以由能够为电容器元件提供机械稳定性的热固性树脂（例如环氧树脂）形成。 防潮层同样可以由疏水材料形成。

公开(公告)号：US20140268502A1

公开(公告)日：2014-09-18

申请号：US14198717

申请日：2014-03-06

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek

IPC: H01G9/052 ,  H01G9/032 ,  H01G9/00

CPC classification number: H01G9/052 ,  H01G9/0032 ,  H01G9/032 ,  H01G9/15

Abstract: A capacitor for use in relatively high voltage environments is provided. The solid electrolyte is formed from a plurality of pre-polymerized particles in the form of a dispersion. In addition, the anode is formed such that it contains at least one longitudinally extending channel is recessed therein. The channel may have a relatively high aspect ratio (length divided by width), such as about 2 or more, in some embodiments about 5 or more, in some embodiments from about 10 to about 200, in some embodiments from about 15 to about 150, in some embodiments from about 20 to about 100, and in some embodiments, from about 30 to about 60.

Abstract translation: 提供了一种在较高电压环境中使用的电容器。 固体电解质由分散体形式的多个预聚合颗粒形成。 此外，阳极形成为使得其包含至少一个纵向延伸的通道凹入其中。 通道可以具有相对高的纵横比（长度除以宽度），例如约2或更大，在一些实施方案中为约5或更多，在一些实施方案中为约10至约200，在一些实施方案中为约15至约150 ，在一些实施方案中为约20至约100，在一些实施方案中为约30至约60。