Solid State Capacitors and Method of Manufacturing Them
    11.
    发明申请
    Solid State Capacitors and Method of Manufacturing Them 审中-公开
    固态电容器及其制造方法

    公开(公告)号:US20080310080A1

    公开(公告)日:2008-12-18

    申请号:US12064051

    申请日:2006-08-18

    IPC分类号: H01G9/15 H01G9/00

    摘要: The present invention concerns the field of solid state capacitors and is directed more particularly to a method for manufacturing solid state electrolytic capacitors formed from porous conductive metal oxide anode bodies and having a cathode layer of conducting polymer, and capacitors thereby formed. There is disclosed a solid state capacitor comprising a porous anode body, a dielectric layer formed on surfaces of the porous anode body and a cathode layer formed on the dielectric layer, characterised by the combination of the anode body being formed from an electrically conducting ceramic material and the cathode layer being formed from an electrically conductive polymer material. The conducting ceramic material may be a metal oxide or nitride.

    摘要翻译: 本发明涉及固态电容器的领域,更具体地涉及由多孔导电金属氧化物阳极体形成并具有导电聚合物的阴极层和由此形成的电容器的固态电解电容器的制造方法。 公开了一种固态电容器,其包括多孔阳极体,形成在多孔阳极体的表面上的电介质层和形成在电介质层上的阴极层,其特征在于,阳极体由导电陶瓷材料 并且阴极层由导电聚合物材料形成。 导电陶瓷材料可以是金属氧化物或氮化物。

    SOLID ELECTROLYTIC CAPACITOR CONTAINING A BARRIER LAYER
    12.
    发明申请
    SOLID ELECTROLYTIC CAPACITOR CONTAINING A BARRIER LAYER 有权
    包含障碍层的固体电解电容器

    公开(公告)号:US20080232033A1

    公开(公告)日:2008-09-25

    申请号:US11689046

    申请日:2007-03-21

    申请人: Martin Biler

    发明人: Martin Biler

    IPC分类号: H01G9/15

    摘要: An electrolytic capacitor containing an anode and solid electrolyte overlying the anode is provided. The capacitor may also include a barrier layer that overlies the solid electrolyte to help protect the capacitor from its working environment. More specifically, the barrier layer may include a three-dimensional crosslinked network that provides excellent adhesion to the underlying layers, and also improved barrier properties to moisture. In this manner, the barrier layer can enable the electrolytic capacitor to increase it performance in relatively high humidity and/or high temperature environments.

    摘要翻译: 提供了包含阳极和固体电解质的电解电容器,其覆盖阳极。 电容器还可以包括覆盖固体电解质的阻挡层,以帮助保护电容器免受其工作环境的影响。 更具体地,阻挡层可以包括三维交联网络,其对下面的层提供优异的粘附性,并且还改善了对湿气的阻挡性能。 以这种方式,阻挡层可以使电解电容器在相对高的湿度和/或高温环境中增加其性能。

    Abrasive blasted conductive polymer cathode for use in a wet electrolytic capacitor
    13.
    发明授权
    Abrasive blasted conductive polymer cathode for use in a wet electrolytic capacitor 有权
    用于湿电解电容器的磨料喷射导电聚合物阴极

    公开(公告)号:US08605411B2

    公开(公告)日:2013-12-10

    申请号:US12883410

    申请日:2010-09-16

    IPC分类号: H01G2/10 H01G9/00 H01G9/04

    摘要: A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, an electrolyte, and a cathode containing a metal substrate that is abrasive blasted is provided. Abrasive blasting may accomplish a variety of different purposes. For example, it may result in a surface that is substantially uniform and macroscopically smooth, thereby increasing the consistency of conductive coatings formed thereon. While possessing a certain degree of smoothness, the abrasive blasted surface is nevertheless micro-roughened so that it contains a plurality of pits. The pits provide an increased surface area, thereby allowing for increased cathode capacitance for a given size and/or capacitors with a reduced size for a given capacitance. A conductive coating that contains a substituted polythiophene is disposed on the micro-roughened surface. The presence of the pits on the substrate enhances the degree of contact between the conductive coating and metal substrate, thereby resulting in improved mechanical robustness and electrical performance (e.g., reduced equivalent series resistance and leakage current).

    摘要翻译: 提供一种湿电解电容器,其包括含有电介质层的多孔阳极体,电解质和含有被喷砂处理的金属基板的阴极。 磨料喷砂可以实现各种不同的目的。 例如,可能导致表面基本均匀且宏观地平滑,从而增加其上形成的导电涂层的稠度。 在具有一定程度的平滑度的同时,喷砂表面仍然是微粗糙化的,使得它包含多个凹坑。 凹坑提供了增加的表面积,从而允许给定尺寸的阴极电容增加和/或给定电容的尺寸减小的电容器。 包含取代的聚噻吩的导电涂层设置在微粗糙表面上。 在衬底上存在凹坑增加了导电涂层和金属衬底之间的接触程度,从而导致改进的机械稳健性和电性能(例如,降低的等效串联电阻和漏电流)。

    Solid electrolytic capacitor containing a conductive polymer
    15.
    发明授权
    Solid electrolytic capacitor containing a conductive polymer 有权
    含有导电聚合物的固体电解电容器

    公开(公告)号:US07938866B2

    公开(公告)日:2011-05-10

    申请号:US12389454

    申请日:2009-02-20

    申请人: Martin Biler

    发明人: Martin Biler

    IPC分类号: H01G9/00

    摘要: A method for forming an electrolytic capacitor is disclosed. The method includes forming a conductive polymer coating over the dielectric layer by polymerizing a monomer in the presence of an oxidative polymerization catalyst. The conductive polymer coating is formed by dipping the anode in a polymerization solution comprising the monomer, the oxidative polymerization catalyst, and a polar solvent. The polymerization solution has a temperature of less than about 20° C. Cooling the polymerization solution further stabilizes the polymerization solution and prevents premature polymerization of the monomer(s). Thus, the resulting conductive polymer layer can be more intimately positioned with respect to the anode. As a result, the formed capacitor can exhibit better performance.

    摘要翻译: 公开了一种形成电解电容器的方法。 该方法包括通过在氧化聚合催化剂存在下聚合单体在电介质层上形成导电聚合物涂层。 通过将阳极浸渍在包含单体,氧化聚合催化剂和极性溶剂的聚合溶液中来形成导电聚合物涂层。 聚合溶液的温度低于约20℃。冷却聚合溶液进一步稳定聚合溶液并防止单体过早聚合。 因此,所得到的导电聚合物层可以相对于阳极更紧密地定位。 结果,形成的电容器可以表现出更好的性能。

    Sintered Anode Pellet Etched with an Organic Acid for Use in an Electrolytic Capacitor
    16.
    发明申请
    Sintered Anode Pellet Etched with an Organic Acid for Use in an Electrolytic Capacitor 有权
    用于电解电容器中的有机酸蚀刻的烧结阳极颗粒

    公开(公告)号:US20090185330A1

    公开(公告)日:2009-07-23

    申请号:US12017473

    申请日:2008-01-22

    IPC分类号: H01G9/042

    摘要: An electrolytic capacitor anode etched with an organic acid prior to anodic oxidation of the anode to create the dielectric layer. Without intending to be limited by theory, it is believed that the organic acid can etch away at least a portion of any oxides on the anode. This provides a relatively uniform surface for the creation of the dielectric, which in turn leads to a dielectric layer having a substantially uniform thickness and homogeneous amorphous structure and thus improved leakage current and stability. The organic acid may also have other residual benefits, such as removing any metallic impurities from the surface of the anode.

    摘要翻译: 在阳极阳极氧化之前用有机酸蚀刻的电解电容器阳极以产生电介质层。 不期望受理论限制,据信有机酸可以蚀刻掉阳极上任何氧化物的至少一部分。 这提供了用于产生电介质的相对均匀的表面,其又导致具有基本均匀的厚度和均匀的非晶结构的电介质层,从而改善了漏电流和稳定性。 有机酸还可具有其它的剩余益处,例如从阳极表面去除任何金属杂质。

    Solid electrolytic capacitor containing a conductive polymer
    17.
    发明授权
    Solid electrolytic capacitor containing a conductive polymer 有权
    含有导电聚合物的固体电解电容器

    公开(公告)号:US07515396B2

    公开(公告)日:2009-04-07

    申请号:US11689035

    申请日:2007-03-21

    申请人: Martin Biler

    发明人: Martin Biler

    IPC分类号: H01G9/02 H01G9/00

    摘要: A method for forming an electrolytic capacitor is disclosed. The method includes forming a conductive polymer coating by polymerizing a monomer in the presence of less than a stoichiometric amount of an oxidative polymerization catalyst. The present inventor has found that the use of less than the stoichiometric amount of the oxidative polymerization catalyst per mole of monomer can slow the polymerization of the monomer, creating oligomers that are shorter in length than if fully polymerized into a polymer. Without wishing to be bound by theory, it is believed that these shorter oligomers provide better penetration into the porous anode. Thus, the resulting conductive polymer layer can be more intimately positioned with respect to the anode. As a result, the formed capacitor can exhibit better performance.

    摘要翻译: 公开了一种形成电解电容器的方法。 该方法包括通过在少于化学计量的氧化聚合催化剂的存在下聚合单体形成导电聚合物涂层。 本发明人已经发现,使用少于每摩尔单体的化学计量量的氧化聚合催化剂可以减缓单体的聚合,产生长度短于聚合成聚合物的长度的低聚物。 不希望受理论束缚,据信这些较短的低聚物可以更好地渗入多孔阳极。 因此,所得到的导电聚合物层可以相对于阳极更紧密地定位。 结果,形成的电容器可以表现出更好的性能。

    Solid electrolytic capacitor containing a conductive coating formed from a colloidal dispersion
    18.
    发明授权
    Solid electrolytic capacitor containing a conductive coating formed from a colloidal dispersion 有权
    含有由胶体分散体形成的导电涂层的固体电解电容器

    公开(公告)号:US08451588B2

    公开(公告)日:2013-05-28

    申请号:US13045581

    申请日:2011-03-11

    申请人: Martin Biler

    发明人: Martin Biler

    IPC分类号: H01G9/045

    摘要: A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte overlying the dielectric, and a colloidal particle coating that overlies the solid electrolyte. The coating is formed from a colloidal particle dispersion. The particles of the dispersion contain at least two different polymer components—i.e., a conductive polymer and a latex polymer. One benefit of such a coating is that the presence of the latex polymer can help mechanically stabilize the capacitor during encapsulation due to its relatively soft nature. This helps limit delamination of the solid electrolyte and any other damage that may otherwise occur during formation of the capacitor. Furthermore, the latex polymer can also enhance the ability of the particles to be dispersed in an aqueous medium, which is desirable in various applications.

    摘要翻译: 一种固体电解电容器,其包括阳极体,覆盖在阳极体上的电介质,覆盖在电介质上的固体电解质和覆盖在固体电解质上的胶体颗粒涂层。 涂层由胶体颗粒分散体形成。 分散体的颗粒含有至少两种不同的聚合物组分,即导电聚合物和胶乳聚合物。 这种涂层的一个好处是,由于其相对柔软的性质,胶乳聚合物的存在可以帮助在封装期间机械地稳定电容器。 这有助于限制固体电解质的分层和在电容器形成期间可能发生的任何其它损坏。 此外,胶乳聚合物还可以增强颗粒分散在水性介质中的能力,这在各种应用中是期望的。

    Solid Electrolytic Capacitor Containing a Conductive Coating Formed from a Colloidal Dispersion
    19.
    发明申请
    Solid Electrolytic Capacitor Containing a Conductive Coating Formed from a Colloidal Dispersion 有权
    包含由胶体分散体形成的导电涂层的固体电解电容器

    公开(公告)号:US20120229955A1

    公开(公告)日:2012-09-13

    申请号:US13045581

    申请日:2011-03-11

    申请人: Martin Biler

    发明人: Martin Biler

    IPC分类号: H01G9/042 H01G7/00 H01G9/04

    摘要: A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte overlying the dielectric, and a colloidal particle coating that overlies the solid electrolyte. The coating is formed from a colloidal particle dispersion. The particles of the dispersion contain at least two different polymer components—i.e., a conductive polymer and a latex polymer. One benefit of such a coating is that the presence of the latex polymer can help mechanically stabilize the capacitor during encapsulation due to its relatively soft nature. This helps limit delamination of the solid electrolyte and any other damage that may otherwise occur during formation of the capacitor. Furthermore, the latex polymer can also enhance the ability of the particles to be dispersed in an aqueous medium, which is desirable in various applications.

    摘要翻译: 一种固体电解电容器,其包括阳极体,覆盖在阳极体上的电介质,覆盖在电介质上的固体电解质和覆盖在固体电解质上的胶体颗粒涂层。 涂层由胶体颗粒分散体形成。 分散体的颗粒含有至少两种不同的聚合物组分,即导电聚合物和胶乳聚合物。 这种涂层的一个好处是,由于其相对柔软的性质,胶乳聚合物的存在可以帮助在封装期间机械地稳定电容器。 这有助于限制固体电解质的分层和在电容器形成期间可能发生的任何其它损坏。 此外,胶乳聚合物还可以增强颗粒分散在水性介质中的能力,这在各种应用中是期望的。

    Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications
    20.
    发明申请
    Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications 有权
    用于高压和高温应用的固体电解电容器

    公开(公告)号:US20120106031A1

    公开(公告)日:2012-05-03

    申请号:US12916802

    申请日:2010-11-01

    IPC分类号: H01G9/025 B82Y30/00

    摘要: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe2+ or Fe3+ ions) that can lead to dielectric degradation, particularly at relatively high voltages (e.g., above about 60 volts). Furthermore, to help protect the stability of the solid electrolyte at high temperatures, 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 oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the solid electrolyte is less likely to undergo a reaction in high temperature environments, 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.

    摘要翻译: 提供了一种用于高压和高温环境的电容器组件。 更具体地,电容器组件包括固体电解电容器元件,其包含阳极体,覆盖阳极的电介质和覆盖电介质的固体电解质。 为了有助于在高电压应用中使用电容器组件,通常期望固体电解质由预先形成的导电聚合物颗粒的分散体形成。 以这种方式,电解质可以保持通常不含能够导致电介质劣化的高能自由基(例如,Fe 2+或Fe 3+离子),特别是在相对高的电压(例如高于约60伏)的情况下。 此外,为了有助于在高温下保护固体电解质的稳定性,在存在含有惰性气体的气体气氛的情况下,电容器元件被封闭并密封在壳体内。 据信壳体和惰性气体气氛能够限制供应到电容器的导电聚合物的氧气和水分的量。 以这种方式,固体电解质在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。 除了在高电压和高温环境中都能很好地工作之外,本发明的电容器组件还可以表现出高的体积效率。