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41.发明申请公开(公告)号：US20140022704A1
公开(公告)日：2014-01-23
申请号：US13941735
申请日：2013-07-15
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
CPC classification number: H01G9/15 , H01G9/0032 , H01G9/0036 , H01G9/025 , H01G9/028 , H01G9/0525 , H01G9/07
Abstract: A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The anode is formed from a finely divided powder (e.g., nodular or angular) having a relatively high specific charge. Despite the use of such high specific charge powders, high voltages can be achieved through a combination of features relating to the formation of the anode and solid electrolyte. For example, relatively high press densities and sintering temperatures may be employed to achieve “sinter necks” between adjacent agglomerated particles that are relatively large in size, which render the dielectric layer in the vicinity of the neck less susceptible to failure at high forming voltages.
Abstract translation: 提供一种固体电解电容器，其包括烧结多孔阳极，覆盖在阳极体上的电介质层和覆盖在电介质层上的固体电解质。 阳极由具有相对较高比电荷的细碎粉末（例如，结节状或角形）形成。 尽管使用这种高比电荷粉末，但通过与形成阳极和固体电解质相关的特征的组合可以实现高电压。 例如，可以采用相对较高的压制密度和烧结温度来实现尺寸相对较大的相邻附聚颗粒之间的“烧结颈部”，这使得颈部附近的电介质层在高成形电压下不易发生故障。
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公开(公告)号：US20140022703A1
公开(公告)日：2014-01-23
申请号：US13941710
申请日：2013-07-15
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
IPC: H01G9/025
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。
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公开(公告)号：US20140022702A1
公开(公告)日：2014-01-23
申请号：US13941693
申请日：2013-07-15
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
IPC: H01G9/025
CPC classification number: H01G9/025 , H01G9/0036 , H01G9/028
Abstract: A capacitor for use in relatively high voltage environments is provided. During formation, anodization may be carried out in a manner so that the dielectric layer possesses a relatively thick portion that overlies an external surface of the anode and a relatively thin portion that overlies an interior surface of the anode. In addition to employing a dielectric layer with a differential thickness, the solid electrolyte is also formed from the combination of pre-polymerized conductive polymer particles and a hydroxy-functional nonionic polymer.
Abstract translation: 提供了一种在较高电压环境中使用的电容器。 在形成期间，可以以这样的方式进行阳极氧化，使得电介质层具有覆盖在阳极的外表面上的相对厚的部分和覆盖在阳极的内表面上的相对薄的部分。 除了采用具有不同厚度的介电层之外，固体电解质也由预聚合的导电聚合物颗粒和羟基官能的非离子聚合物的组合形成。
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公开(公告)号：US20130242467A1
公开(公告)日：2013-09-19
申请号：US13783766
申请日：2013-03-04
Applicant: AVX CORPORATION
Inventor： Martin Biler
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.
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45.发明申请Wet Capacitor Cathode Containing a Conductive Coating Formed Anodic Electrochemical Polymerization of a Colloidal Suspension 有权包含导电涂层的湿电容器阴极形成阳离子电化学聚合的胶体悬浮液公开(公告)号：US20130242465A1
公开(公告)日：2013-09-19
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
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。
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Patent Agency Ranking
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：US10297393B2
公开(公告)日：2019-05-21
申请号：US14657208
申请日：2015-03-13
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Jiri Navratil , Martin Biler
Abstract: A capacitor assembly for use in ultrahigh voltage environments is provided. To help achieve good performance at such high voltages, a variety of aspects of the assembly are controlled in the present invention, including the number of capacitor elements, the manner in which the capacitor elements are arranged and incorporated into the assembly, and the manner in which the capacitor elements are formed. For example, the capacitor assembly contains an anode termination to which the anode lead of a first capacitor element is electrically connected and a cathode termination to which the cathode of a second capacitor element is electrically connected. To help improve the breakdown voltage properties of the assembly, the capacitor elements are electrically connected in series such that the anode lead of the second capacitor element is also electrically connected to the cathode of the first capacitor element via a conductive member.
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公开(公告)号：US10297392B2
公开(公告)日：2019-05-21
申请号：US15387795
申请日：2016-12-22
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
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.
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公开(公告)号：US10121600B2
公开(公告)日：2018-11-06
申请号：US15406826
申请日：2017-01-16
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
Abstract: A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The anode is formed from a finely divided powder (e.g., nodular or angular) having a relatively high specific charge. Despite the use of such high specific charge powders, high voltages can be achieved through a combination of features relating to the formation of the anode and solid electrolyte. For example, relatively high press densities and sintering temperatures may be employed to achieve “sinter necks” between adjacent agglomerated particles that are relatively large in size, which render the dielectric layer in the vicinity of the neck less susceptible to failure at high forming voltages.
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50.发明授权公开(公告)号：US09548163B2
公开(公告)日：2017-01-17
申请号：US13941735
申请日：2013-07-15
Applicant: AVX Corporation
Inventor： Jan Petrzilek , Martin Biler
CPC classification number: H01G9/15 , H01G9/0032 , H01G9/0036 , H01G9/025 , H01G9/028 , H01G9/0525 , H01G9/07
Abstract: A solid electrolytic capacitor that comprises a sintered porous anode, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer is provided. The anode is formed from a finely divided powder (e.g., nodular or angular) having a relatively high specific charge. Despite the use of such high specific charge powders, high voltages can be achieved through a combination of features relating to the formation of the anode and solid electrolyte. For example, relatively high press densities and sintering temperatures may be employed to achieve “sinter necks” between adjacent agglomerated particles that are relatively large in size, which render the dielectric layer in the vicinity of the neck less susceptible to failure at high forming voltages.
Abstract translation: 提供一种固体电解电容器，其包括烧结多孔阳极，覆盖在阳极体上的电介质层和覆盖在电介质层上的固体电解质。 阳极由具有相对较高比电荷的细碎粉末（例如，结节状或角形）形成。 尽管使用这种高比电荷粉末，但通过与形成阳极和固体电解质相关的特征的组合可以实现高电压。 例如，可以采用相对较高的压制密度和烧结温度来实现尺寸相对较大的相邻附聚颗粒之间的“烧结颈部”，这使得颈部附近的电介质层在高成形电压下不易发生故障。
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