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公开(公告)号：US20140321029A1
公开(公告)日：2014-10-30
申请号：US13972990
申请日：2013-08-22
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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公开(公告)号：US11342129B2
公开(公告)日：2022-05-24
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：US11282652B2
公开(公告)日：2022-03-22
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：US10079115B2
公开(公告)日：2018-09-18
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.
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公开(公告)号：US09620294B2
公开(公告)日：2017-04-11
申请号：US14585354
申请日：2014-12-30
Applicant: AVX Corporation
Inventor： Lotfi Djebara , James S. Bates , Mitchell D. Weaver
CPC classification number: H01G9/145 , A61N1/3981 , H01G9/042 , H01G9/048 , H01G9/052 , H01G9/06 , H01G9/08
Abstract: A wet electrolytic capacitor is provided. The capacitor includes a planar anode formed from a pressed and sintered powder, a cathode that includes a metal substrate that is coated with an electrochemically-active material, and a working electrolyte in communication with the planar anode and cathode. The planar anode has a recessed portion formed in at least one of its surfaces. The capacitor also includes at least one restraint that is in contact with the recessed portion and has a shape that generally corresponds with a shape of the recessed portion. The recessed portion of the planar anode allows for stabilization of the planar anode with via a restraint without increasing the dimensions of the capacitor.
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Patent Agency Ranking
公开(公告)号：US09620293B2
公开(公告)日：2017-04-11
申请号：US14542761
申请日：2014-11-17
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Radek Matousek , Ludek Kubes
CPC classification number: H01G9/10 , A61N1/3956 , H01G9/0029 , H01G9/008 , H01G9/02 , H01G9/042 , H01G9/048 , H01G9/07 , H01G9/08 , H01G9/145
Abstract: A wet electrolytic capacitor is provided that includes an anode, an anode lead, an electrolyte, a casing having a wall that defines an anode lead orifice, and a sealing assembly. The sealing assembly is connected to the casing at the anode lead orifice, and a portion of the anode lead extends through it. The sealing assembly includes an isolation tube, a metal plate, and an elastomeric ring. The tube receives the anode lead and has a first portion extending through the anode lead orifice and a second portion located in an interior of the casing. The plate is positioned adjacent to an exterior surface of the wall, covers the anode lead orifice, and contains an orifice through which the first portion of the tube extends. The ring is positioned adjacent to an interior surface of the wall and contains an orifice through which the second portion of the tube extends.
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公开(公告)号：US20160172116A1
公开(公告)日：2016-06-16
申请号：US15049612
申请日：2016-02-22
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Stanislav Zednicek , Ivan Horacek , Jan Petrzilek
CPC classification number: H01G9/0525 , H01G9/0029 , H01G9/012 , H01G9/025 , H01G9/042 , H01G9/052 , H01G9/07 , H01G9/15 , Y10T29/417
Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.
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公开(公告)号：US09269499B2
公开(公告)日：2016-02-23
申请号：US13972987
申请日：2013-08-22
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Stanislav Zednicek , Ivan Horacek , Jan Petrzilek
CPC classification number: H01G9/0525 , H01G9/0029 , H01G9/012 , H01G9/025 , H01G9/042 , H01G9/052 , H01G9/07 , H01G9/15 , Y10T29/417
Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.
Abstract translation: 提供一种包含固体电解电容器元件的电容器，其包括烧结多孔阳极体，第一阳极引线和第二阳极引线。 第一阳极引线的厚度大于第二阳极引线的厚度。 第一阳极引线的一部分嵌入在多孔阳极体中，第一阳极引线的第二部分从其表面沿纵向方向延伸。 同时，第二阳极引线电连接到阳极主体以连接到阳极端子。 在一个实施例中，第二阳极引线可以直接连接到阳极体的表面。 在另一个实施例中，第二阳极引线可以间接地连接到阳极体，例如通过连接在第一阳极引线的第二部分的端部。
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公开(公告)号：US09240285B2
公开(公告)日：2016-01-19
申请号：US13972990
申请日：2013-08-22
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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公开(公告)号：US20150055277A1
公开(公告)日：2015-02-26
申请号：US13972987
申请日：2013-08-22
Applicant: AVX Corporation
Inventor： Lotfi Djebara , Stanislav Zednicek , Ivan Horacek , Jan Petrzilek
CPC classification number: H01G9/0525 , H01G9/0029 , H01G9/012 , H01G9/025 , H01G9/042 , H01G9/052 , H01G9/07 , H01G9/15 , Y10T29/417
Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.
Abstract translation: 提供一种包含固体电解电容器元件的电容器，其包括烧结多孔阳极体，第一阳极引线和第二阳极引线。 第一阳极引线的厚度大于第二阳极引线的厚度。 第一阳极引线的一部分嵌入在多孔阳极体中，第一阳极引线的第二部分从其表面沿纵向方向延伸。 同时，第二阳极引线电连接到阳极主体以连接到阳极端子。 在一个实施例中，第二阳极引线可以直接连接到阳极体的表面。 在另一个实施例中，第二阳极引线可以间接地连接到阳极体，例如通过连接在第一阳极引线的第二部分的端部。
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