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公开(公告)号：US20190279828A1
公开(公告)日：2019-09-12
申请号：US16403714
申请日：2019-05-06
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Jan Petrzilek
Abstract: A wet electrolytic capacitor containing a cathode, fluidic working electrolyte, and planar anode formed from an anodically oxidized sintered porous pellet is provided. The pellet may be formed from a pressed valve metal powder, which in turn, is formed by reacting an oxide of a valve metal compound (e.g., tantalum pentoxide) with a reducing agent that contains a metal having an oxidation state of 2 or more (e.g., magnesium). Through the use of such a powder, the present inventors have discovered that higher capacitance levels can be achieved than previously thought possible for the high voltage capacitors employed in implantable medical devices.
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公开(公告)号：US09905368B2
公开(公告)日：2018-02-27
申请号：US14817507
申请日：2015-08-04
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Ludek Kubes , Radek Matousek , Stanislav Zednicek
CPC classification number: H01G9/052 , H01G9/0032 , H01G9/012 , H01G9/025 , H01G9/028 , H01G9/07 , H01G9/15
Abstract: A solid electrolytic capacitor including a capacitor element, a first anode lead, a second anode lead, and a carrier wire. The capacitor element includes a sintered, porous anode body; a dielectric layer overlying the sintered, porous anode body; and a cathode overlying the dielectric layer that includes a solid electrolyte. The first and second anode leads each have an embedded portion positioned within the anode body and an external portion extending longitudinally from a surface of the anode body in an x-direction, while the carrier wire is positioned external to the anode body. Further, a first portion of the carrier wire is connected to the external portions of the first and second anode leads, while a second portion of the carrier wire extends longitudinally away from the surface of the anode body in the x-direction. Such an arrangement reduces the ESR and leakage current of the capacitor.
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公开(公告)号：US09842704B2
公开(公告)日：2017-12-12
申请号：US14817533
申请日：2015-08-04
Applicant: AVX Corporation
Inventor： Stanislav Zednicek , Lotfi Djebara , Ludek Kubes , Radek Matousek , Pavel Bosak , Jiri Snitil
Abstract: A solid electrolytic capacitor including a capacitor element and an anode lead assembly is provided. The capacitor element includes a sintered, porous anode body; a dielectric layer overlying the sintered, porous anode body; and a cathode overlying the dielectric layer that includes a solid electrolyte. The anode lead assembly includes an anode lead tape having an embedded portion positioned within the anode body and an external portion extending from a surface of the anode body in a longitudinal direction, where the width of the anode lead tape is greater than the height of the anode lead tape. Meanwhile, a carrier lead wire is positioned external to the anode body and includes a first portion and a second portion. The first portion has a substantially planar surface that is connected to the substantially planar surface of the external portion of the anode lead tape.
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4.发明申请公开(公告)号：US20170040116A1
公开(公告)日：2017-02-09
申请号：US14817507
申请日：2015-08-04
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Ludek Kubes , Radek Matousek , Stanislav Zednicek
CPC classification number: H01G9/052 , H01G9/0032 , H01G9/012 , H01G9/025 , H01G9/028 , H01G9/07 , H01G9/15
Abstract: A solid electrolytic capacitor including a capacitor element, a first anode lead, a second anode lead, and a carrier wire. The capacitor element includes a sintered, porous anode body; a dielectric layer overlying the sintered, porous anode body; and a cathode overlying the dielectric layer that includes a solid electrolyte. The first and second anode leads each have an embedded portion positioned within the anode body and an external portion extending longitudinally from a surface of the anode body in an x-direction, while the carrier wire is positioned external to the anode body. Further, a first portion of the carrier wire is connected to the external portions of the first and second anode leads, while a second portion of the carrier wire extends longitudinally away from the surface of the anode body in the x-direction. Such an arrangement reduces the ESR and leakage current of the capacitor.
Abstract translation: 一种固体电解电容器，包括电容器元件，第一阳极引线，第二阳极引线和载体线。 电容器元件包括烧结多孔阳极体; 覆盖烧结的多孔阳极体的电介质层; 以及覆盖包括固体电解质的电介质层的阴极。 第一和第二阳极引线各自具有位于阳极体内的嵌入部分和从x方向从阳极体的表面纵向延伸的外部部分，而载体线位于阳极体外部。 此外，承载线的第一部分连接到第一和第二阳极引线的外部部分，而载体线的第二部分在x方向上纵向延伸离开阳极体的表面。 这种布置降低了电容器的ESR和漏电流。
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公开(公告)号：US20160093446A1
公开(公告)日：2016-03-31
申请号：US14963323
申请日：2015-12-09
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Ludek Kubes
CPC classification number: H01G9/052 , H01G9/025 , H01G9/028 , H01G9/042 , H01G9/0425 , H01G9/048 , H01G9/15
Abstract: A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer and at least one metal layer. In addition to the aforementioned layers, the external coating can also include at least one conductive polymer layer that can be disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. Further, the notched geometry of the anode body itself is selected to minimize the risk of delamination of the external coating layers from the anode body. This combination of characteristics can increase the mechanical robustness of the part and improve its electrical performance.
Abstract translation: 提供一种固体电解电容器，其包括阳极体，覆盖阳极体的电介质，含有一种或多种导电聚合物并覆盖在电介质上的固体电解质，以及覆盖在固体电解质上的外部涂层。 外部涂层包括至少一个含碳层和至少一个金属层。 除了上述层之外，外部涂层还可以包括可以设置在碳质层和金属层之间的至少一个导电聚合物层。 除此之外，这种导电聚合物层可以降低在使用期间碳质层将从固体电解质分层的可能性。 此外，选择阳极体本身的切口几何形状以最小化外部涂层从阳极体分层的风险。 这种特性的组合可以增加部件的机械坚固性，并提高其电气性能。
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Patent Agency Ranking
公开(公告)号：US11328874B2
公开(公告)日：2022-05-10
申请号：US16874774
申请日：2020-05-15
Applicant: AVX Corporation
Inventor： Lotfi Djebara
Abstract: A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and that includes conductive polymer particles. The anode body has an exterior surface that spans in a longitudinal direction to define a length of the anode body, wherein at least one channel is recessed into the exterior surface of the anode body. The channel is defined by opposing sidewalls that intersect at a base, wherein the channel has a width of from about 0.4 millimeters to about 3 millimeters and a depth of from about 50 micrometers to about 350 micrometers.
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公开(公告)号：US11257628B2
公开(公告)日：2022-02-22
申请号：US16025195
申请日：2018-07-02
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Lotfi Djebara , Ladislav Vilc
Abstract: A capacitor that comprises a solid electrolytic capacitor element, a casing material that encapsulates the capacitor element, an anode termination, and a cathode termination is provided. A nanocoating is disposed on at least a portion of the capacitor element, casing material, anode termination, cathode termination, or a combination thereof. The nanocoating has an average thickness of about 2,000 nanometers or less and contains a vapor-deposited polymer.
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公开(公告)号：US20190392996A1
公开(公告)日：2019-12-26
申请号：US16448045
申请日：2019-06-21
Applicant: AVX Corporation
Inventor： Jiri Navratil , Frantisek Priban , Lotfi Djebara
Abstract: A solid electrolytic capacitor is provided that contains a casing material that encapsulates the capacitor element. The casing material is formed from a curable resinous matrix that has a coefficient of thermal expansion of about 42 ppm/° C. or less at a temperature above the glass transition temperature of the resinous matrix. Further, the capacitor exhibits an initial equivalence series resistance of about 200 mohms or less as determined at an operating frequency of 100 kHz and temperature of 23° C., and the ratio of the equivalence series resistance of the capacitor after being exposed to a temperature of 125° C. for 560 hours to the initial equivalence series resistance of the capacitor is about 2.0 or less.
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公开(公告)号：US10290430B2
公开(公告)日：2019-05-14
申请号：US14551183
申请日：2014-11-24
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Jan Petrzilek
Abstract: A wet electrolytic capacitor containing a cathode, fluidic working electrolyte, and planar anode formed from an anodically oxidized sintered porous pellet is provided. The pellet may be formed from a pressed valve metal powder, which in turn, is formed by reacting an oxide of a valve metal compound (e.g., tantalum pentoxide) with a reducing agent that contains a metal having an oxidation state of 2 or more (e.g., magnesium). Through the use of such a powder, the present inventors have discovered that higher capacitance levels can be achieved than previously thought possible for the high voltage capacitors employed in implantable medical devices.
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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
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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