公开(公告)号：US10553365B2

公开(公告)日：2020-02-04

申请号：US16286701

申请日：2019-02-27

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek

IPC: H01G9/15 ,  H01G9/10 ,  H01G9/08 ,  H01G9/00

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.

公开(公告)号：US10224151B2

公开(公告)日：2019-03-05

申请号：US14198729

申请日：2014-03-06

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek

IPC: H01G9/10 ,  H01G9/00 ,  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.

公开(公告)号：US20190006117A1

公开(公告)日：2019-01-03

申请号：US16026260

申请日：2018-07-03

Applicant: AVX Corporation

Inventor： Lotfi Djebara ,  Martin Biler ,  Frantisek Priban

IPC: H01G9/10 ,  H01G9/012 ,  H01G9/052 ,  H01G9/07 ,  H01G9/15 ,  H01G9/00

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.

公开(公告)号：US10014120B2

公开(公告)日：2018-07-03

申请号：US15362005

申请日：2016-11-28

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek ,  Ivana Zednickova

IPC: H01G9/15 ,  H01G9/10 ,  H01G9/012 ,  H01G9/042 ,  H01G4/228 ,  H01G9/052 ,  H01G13/00 ,  H01G9/00 ,  H01G9/032 ,  H01G9/06 ,  H01G9/08 ,  H01G2/06 ,  H01G9/04

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

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.

公开(公告)号：US09793060B2

公开(公告)日：2017-10-17

申请号：US14266937

申请日：2014-05-01

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Martin Biler

IPC: H01G9/042 ,  H01G9/028 ,  H01G9/15 ,  H01G9/00 ,  H01G9/052 ,  H01G9/032

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).

公开(公告)号：US20160268053A1

公开(公告)日：2016-09-15

申请号：US14657245

申请日：2015-03-13

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Jiri Navratil ,  Martin Biler

IPC: H01G9/00 ,  H01G9/032 ,  H01G9/042 ,  H01G9/08

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.

Abstract translation: 提供一种电容器组件，其包括壳体，密封在壳体内的电容器元件以及至少部分地封装电容器元件的导热材料。 电容器元件包括烧结阳极体，覆盖阳极体的电介质和覆盖电介质的固体电解质。 根据ISO 22007-2：2014确定，导热材料具有约1W / m-K以上的热导率。

公开(公告)号：US09275799B2

公开(公告)日：2016-03-01

申请号：US13710515

申请日：2012-12-11

Applicant: AVX Corporation

Inventor： Tomas Karnik ,  Jan Petrzilek ,  Martin Biler

IPC: H01G9/052 ,  H01G9/00 ,  H01G9/145 ,  H01G9/048

CPC classification number: H01G9/0525 ,  H01G9/0029 ,  H01G9/048 ,  H01G9/052 ,  H01G9/145 ,  Y10T29/417

Abstract: A wet electrolytic capacitor that includes a sintered porous anode body containing a dielectric layer, a fluid electrolyte, and a cathode is provided. At least one longitudinally extending channel is recessed into the anode body. 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: 提供一种湿电解电容器，其包括包含电介质层，流体电解质和阴极的烧结多孔阳极体。 至少一个纵向延伸的通道凹入阳极体。 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。

公开(公告)号：US09214285B2

公开(公告)日：2015-12-15

申请号：US13858127

申请日：2013-04-08

Applicant: AVX Corporation

Inventor： Martin Biler

IPC: H01G9/00 ,  H01G9/052 ,  H01G9/012 ,  H01G9/10 ,  H01G9/15 ,  H01G11/22 ,  H01G11/48 ,  H01G2/06 ,  H01G4/228

CPC classification number: H01G9/052 ,  H01G2/065 ,  H01G4/228 ,  H01G9/012 ,  H01G9/10 ,  H01G9/15 ,  H01G11/22 ,  H01G11/48 ,  Y02E60/13

Abstract: Described is a capacitor assembly that is thermally and mechanically stable under extreme conditions. Thermal stability is provided 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. To provide good mechanical stability, the assembly contains at least one external termination (e.g., anode and/or cathode termination) extending beyond an outer periphery of a surface of the housing. The degree to which the external termination extends beyond the outer periphery relative to the dimension of the housing is selectively controlled to increase the surface area available for soldering to a circuit board.

Abstract translation: 描述了在极端条件下热和机械稳定的电容器组件。 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外壳内，从而限制供应到电容器的固体电解质的氧气和水分的量来提供热稳定性。 为了提供良好的机械稳定性，组件包含延伸超过壳体表面的外周边的至少一个外部终端（例如，阳极和/或阴极终端）。 选择性地控制外部端子相对于壳体的尺寸超出外周边的程度，以增加可用于焊接到电路板的表面积。

公开(公告)号：US20150179350A1

公开(公告)日：2015-06-25

申请号：US14634994

申请日：2015-03-02

Applicant: AVX Corporation

Inventor： Martin Biler

IPC: H01G9/145 ,  H01G9/042 ,  H01G9/048 ,  H01G9/052

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：US20150077902A1

公开(公告)日：2015-03-19

申请号：US14027321

申请日：2013-09-16

Applicant: AVX Corporation

Inventor： Jan Petrzilek ,  Martin Biler ,  Mitchell D. Weaver

IPC: H01G9/08 ,  H01G9/052 ,  C25D7/00

CPC classification number: H01G9/08 ,  C23C18/1692 ,  C23C18/44 ,  C25D3/50 ,  C25D5/34 ,  C25D5/50 ,  C25D7/00 ,  C25D11/04 ,  C25D11/26 ,  C25D13/12 ,  H01G9/0029 ,  H01G9/052

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 conductive coating disposed on a surface of a metal substrate. The casing contains a metal substrate coated with a conductive coating. The conductive coating contains a conductive polymer layer formed through anodic electrochemical polymerization (“electro-polymerization”) of a colloidal suspension on the surface of the metal substrate. The conductive coating also contains a precoat layer that is discontinuous in nature and contains a plurality of discrete projections of a conductive material that are deposited over the surface of the metal substrate in a spaced-apart fashion so that they form “island-like” structures.

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导电涂层。 壳体包含涂覆有导电涂层的金属基底。 导电涂层含有通过金属基底表面上的胶体悬浮液的阳极电化学聚合（“电聚合”）形成的导电聚合物层。 导电涂层还包含预涂层，其本质上是不连续的并且包含导电材料的多个离散的突起，其以间隔的方式沉积在金属基底的表面上，使得它们形成“岛状”结构 。