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公开(公告)号：US08514547B2
公开(公告)日：2013-08-20
申请号：US12916788
申请日：2010-11-01
申请人： John Galvagni , Tomas Karnik , James Steven Bates , Richard Baker , Dirk H. Dreissig , Andrew Paul Ritter
发明人： John Galvagni , Tomas Karnik , James Steven Bates , Richard Baker , Dirk H. Dreissig , Andrew Paul Ritter
CPC分类号： H01G9/06 , H01G9/0425 , H01G9/052 , H01G9/145 , Y10T29/43
摘要： A wet electrolytic capacitor that contains a sintered anode positioned with an interior space of a metal casing is provided. The anode and metal casing are of a size such that the anode occupies a substantial portion of the volume of the interior space. More particularly, the anode typically occupies about 70 vol. % or more, in some embodiments about 75 vol. % or more, in some embodiments from about 80 vol. % to about 98 vol. %, and in some embodiments, from about 85 vol. % to 95 vol. % of the interior space. Among other things, the use of an anode that occupies such a large portion of the interior space enhances volumetric efficiency and other electrical properties of the resulting capacitor.
摘要翻译： 提供一种含有设置有金属外壳的内部空间的烧结阳极的湿式电解电容器。 阳极和金属外壳的尺寸使得阳极占据内部空间体积的相当大的一部分。 更具体地，阳极通常占据约70体积％。 ％或更多，在一些实施方案中为约75体积％ ％或更多，在一些实施方案中为约80体积％。 ％至约98体积％ ％，在一些实施方案中为约85体积％。 ％至95体积 ％的内部空间。 除其他之外，使用占据内部空间大部分的阳极提高了所得电容器的容积效率和其他电气特性。
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公开(公告)号：US20120106029A1
公开(公告)日：2012-05-03
申请号：US12916788
申请日：2010-11-01
申请人： John Galvagni , Tomas Karnik , James Steven Bates , Richard Baker , Dirk H. Dreissig , Andrew Paul Ritter
发明人： John Galvagni , Tomas Karnik , James Steven Bates , Richard Baker , Dirk H. Dreissig , Andrew Paul Ritter
CPC分类号： H01G9/06 , H01G9/0425 , H01G9/052 , H01G9/145 , Y10T29/43
摘要： A wet electrolytic capacitor that contains a sintered anode positioned with an interior space of a metal casing is provided. The anode and metal casing are of a size such that the anode occupies a substantial portion of the volume of the interior space. More particularly, the anode typically occupies about 70 vol. % or more, in some embodiments about 75 vol. % or more, in some embodiments from about 80 vol. % to about 98 vol. %, and in some embodiments, from about 85 vol. % to 95 vol. % of the interior space. Among other things, the use of an anode that occupies such a large portion of the interior space enhances volumetric efficiency and other electrical properties of the resulting capacitor.
摘要翻译： 提供一种含有设置有金属外壳的内部空间的烧结阳极的湿式电解电容器。 阳极和金属外壳的尺寸使得阳极占据内部空间体积的相当大的一部分。 更具体地，阳极通常占据约70体积％。 ％或更多，在一些实施方案中为约75体积％ ％或更多，在一些实施方案中为约80体积％。 ％至约98体积％ ％，在一些实施方案中为约85体积％。 ％至95体积 ％的内部空间。 除其他之外，使用占据内部空间大部分的阳极提高了所得电容器的容积效率和其他电气特性。
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公开(公告)号：US08223473B2
公开(公告)日：2012-07-17
申请号：US12408900
申请日：2009-03-23
申请人： Dirk H. Dreissig , John Galvagni
发明人： Dirk H. Dreissig , John Galvagni
IPC分类号： H01G9/00
摘要： An electrolytic capacitor that contains an anodically oxidized porous anode, cathode, and an electrolyte that contains an alkali metal salt and ionically conductive polymer is provided. The alkali metal salt forms a complex with the ionically conductive polymer and thereby improves its ionic conductivity, particularly at higher temperatures. The electrolyte also contains an organic solvent that reduces the viscosity of the electrolyte and helps lower the potential barrier to metal ion transport within the electrolyte to improve conductivity. By selectively controlling the relative amount of each of these components, the present inventors have discovered that a highly ionically conductive electrolyte may be formed that is also in the form of a viscous liquid. The liquid nature of the electrolyte enables it to more readily enter the pores of the anode via capillary forces and improve specific capacitance. Further, although a liquid, its viscous nature may inhibit the likelihood of leakage.
摘要翻译： 提供一种包含阳极氧化的多孔阳极，阴极和含有碱金属盐和离子导电聚合物的电解质的电解电容器。 碱金属盐与离子导电聚合物形成络合物，从而提高其离子电导率，特别是在较高温度下。 电解质还含有降低电解质粘度的有机溶剂，有助于降低电解液内金属离子传输的势垒，以提高电导率。 通过选择性地控制这些成分中的每一种的相对量，本发明人已经发现，可以形成也是粘性液体形式的高度离子导电的电解质。 电解液的液体性质使其能够更容易地通过毛细管力进入阳极的孔隙并提高比电容。 此外，尽管液体，其粘性也可能抑制泄漏的可能性。
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公开(公告)号：US20100238608A1
公开(公告)日：2010-09-23
申请号：US12408900
申请日：2009-03-23
申请人： Dirk H. Dreissig , John Galvagni
发明人： Dirk H. Dreissig , John Galvagni
IPC分类号： H01G9/035
摘要： An electrolytic capacitor that contains an anodically oxidized porous anode, cathode, and an electrolyte that contains an alkali metal salt and ionically conductive polymer is provided. The alkali metal salt forms a complex with the ionically conductive polymer and thereby improves its ionic conductivity, particularly at higher temperatures. The electrolyte also contains an organic solvent that reduces the viscosity of the electrolyte and helps lower the potential barrier to metal ion transport within the electrolyte to improve conductivity. By selectively controlling the relative amount of each of these components, the present inventors have discovered that a highly ionically conductive electrolyte may be formed that is also in the form of a viscous liquid. The liquid nature of the electrolyte enables it to more readily enter the pores of the anode via capillary forces and improve specific capacitance. Further, although a liquid, its viscous nature may inhibit the likelihood of leakage.
摘要翻译： 提供一种包含阳极氧化的多孔阳极，阴极和含有碱金属盐和离子导电聚合物的电解质的电解电容器。 碱金属盐与离子导电聚合物形成络合物，从而提高其离子电导率，特别是在较高温度下。 电解质还含有降低电解质粘度的有机溶剂，有助于降低电解液内金属离子传输的势垒，以提高电导率。 通过选择性地控制这些成分中的每一种的相对量，本发明人已经发现，可以形成也是粘性液体形式的高度离子导电的电解质。 电解液的液体性质使其能够更容易地通过毛细管力进入阳极的孔隙并提高比电容。 此外，尽管液体，其粘性也可能抑制泄漏的可能性。
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公开(公告)号：US08405956B2
公开(公告)日：2013-03-26
申请号：US12475743
申请日：2009-06-01
申请人： Dirk H. Dreissig , John Galvagni
发明人： Dirk H. Dreissig , John Galvagni
IPC分类号： H01G9/00
CPC分类号： H01G9/035 , H01G9/0425 , H01G9/145
摘要： A wet electrolytic capacitor that includes a porous anode body that contains a dielectric layer formed by anodic oxidation; a cathode that includes a metal substrate coated with a conductive polymer; and an aqueous electrolyte disposed in contact with the cathode and the anode is provided. The electrolyte includes a salt of a weak organic acid and water. The electrolyte has a pH of from about 5.0 to about 8.0 and an ionic conductivity of from about 0.5 to about 80 milliSiemens per centimeter or more, determined at a temperature of 25° C.
摘要翻译： 一种湿式电解电容器，包括含有通过阳极氧化形成的电介质层的多孔阳极体; 包括涂覆有导电聚合物的金属基底的阴极; 设置与阴极和阳极接触的水性电解质。 电解质包括弱有机酸和水的盐。 在25℃的温度下，电解质的pH为约5.0至约8.0，离子电导率为约0.5至约80毫西门子/厘米或更高。
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6.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
CPC分类号： H01G9/0425 , H01G9/0029 , H01G9/0036 , H01G9/028 , H01G9/048 , H01G9/055 , H01G9/06 , H01G9/145 , H01G11/32 , Y02E60/13 , Y10T29/417
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）。
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公开(公告)号：US20100302709A1
公开(公告)日：2010-12-02
申请号：US12475743
申请日：2009-06-01
申请人： Dirk H. Dreissig , John Galvagni
发明人： Dirk H. Dreissig , John Galvagni
CPC分类号： H01G9/035 , H01G9/0425 , H01G9/145
摘要： A wet electrolytic capacitor comprising a porous anode body that contains a dielectric layer formed by anodic oxidation; a cathode comprising a metal substrate coated with a conductive polymer; and an aqueous electrolyte disposed in contact with the cathode and the anode is provided. The electrolyte comprises a salt of a weak organic acid and water. The electrolyte has a pH of from about 5.0 to about 8.0 and an ionic conductivity of from about 0.5 to about 80 milliSiemens per centimeter or more, determined at a temperature of 25° C.
摘要翻译： 一种湿式电解电容器，包括含有通过阳极氧化形成的电介质层的多孔阳极体; 包括涂覆有导电聚合物的金属基底的阴极; 设置与阴极和阳极接触的水性电解质。 电解质包含弱有机酸和水的盐。 在25℃的温度下，电解质的pH为约5.0至约8.0，离子电导率为约0.5至约80毫西门子/厘米或更高。
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公开(公告)号：US20120069490A1
公开(公告)日：2012-03-22
申请号：US13192509
申请日：2011-07-28
CPC分类号： H01G9/0425 , H01G9/0036 , H01G9/028 , H01G9/06 , H01G9/145
摘要： A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, a cathode containing a metal substrate on which is disposed a conductive polymer coating, and an electrolyte is provided. The conductive polymer coating is in the form of a dispersion of particles having a relatively small size, such as an average diameter of from about 1 to about 500 nanometers, in some embodiments from about 5 to about 400 nanometers, and in some embodiments, from about 10 to about 300 nanometers. The relatively small size of the particles used in the coating increases the surface area that is available for adhering to the metal substrate, which in turn improves mechanical robustness and electrical performance (e.g., reduced equivalent series resistance and leakage current). Another benefit of employing such a dispersion for the conductive polymer coating is that it may be able to better cover crevices of the metal substrate and improve electrical contact.
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，含有导电性聚合物涂层的金属基板的阴极和电解质。 导电聚合物涂层是具有相对较小尺寸的颗粒的分散体的形式，例如平均直径为约1至约500纳米，在一些实施方案中为约5至约400纳米，并且在一些实施方案中为 约10至约300纳米。 涂层中使用的相对小的颗粒尺寸增加了可用于粘附到金属基底上的表面积，这又表现出机械坚固性和电性能（例如降低的等效串联电阻和泄漏电流）。 将这种分散体用于导电聚合物涂层的另一个好处是可以更好地覆盖金属基底的裂缝并改善电接触。
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公开(公告)号：US08345406B2
公开(公告)日：2013-01-01
申请号：US12408832
申请日：2009-03-23
摘要： An electric double layer capacitor that contains at least one electrochemical cell is provided. The cell contains electrodes (e.g., two electrodes) that each contain a porous matrix of electrochemically-active particles (e.g., carbon). An aqueous-based electrolyte is disposed in contact with the porous matrix. In accordance with the present invention, the electrolyte is provided with an anionic polymer that serves as binding agent for the electrochemically active particles and thus reduces electrolyte loss, especially at higher temperatures. Because the polymer is anionic in nature, it is generally hydrophilic and thus can retain its binding properties in the presence of water. The anionic nature of the polymer also allows it to remain stable in the presence of a corrosive polyprotic acid, which is employed in the electrolyte to enhance charge density. Thus, as a result of the present invention, a capacitor may be formed that is capable of exhibiting good electrical performance (e.g., high capacitance and low ESR), even at high temperatures (e.g., 70° C. and above).
摘要翻译： 提供包含至少一个电化学电池的双电层电容器。 电池包含各自包含电化学活性颗粒（例如碳）的多孔基质的电极（例如，两个电极）。 将水性电解质设置为与多孔基质接触。 根据本发明，电解质提供阴离子聚合物，其用作电化学活性颗粒的粘合剂，从而降低电解质损失，特别是在较高温度下。 因为聚合物本质上是阴离子的，所以它通常是亲水性的，因此可以在水的存在下保持其结合性质。 聚合物的阴离子性质还允许其在腐蚀性多酸的存在下保持稳定，其用于电解质中以增强电荷密度。 因此，作为本发明的结果，即使在高温（例如70℃以上）下也可以形成能够表现出良好的电性能（例如，高电容和低ESR）的电容器。
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公开(公告)号：US08824121B2
公开(公告)日：2014-09-02
申请号：US13192509
申请日：2011-07-28
CPC分类号： H01G9/0425 , H01G9/0036 , H01G9/028 , H01G9/06 , H01G9/145
摘要： A wet electrolytic capacitor including a porous anode body containing a dielectric layer, a cathode containing a metal substrate on which is disposed a conductive polymer coating, and an electrolyte is provided. The conductive polymer coating is in the form of a dispersion of particles having an average diameter of from about 1 to about 500 nanometers, in some embodiments from about 5 to about 400 nanometers, and in some embodiments, from about 10 to about 300 nanometers. The relatively small size of the particles used in the coating increases the surface area that is available for adhering to the metal substrate, which in turn improves mechanical robustness and electrical performance (e.g., reduced equivalent series resistance and leakage current). Another benefit of employing such a dispersion for the conductive polymer coating is that it may be able to better cover crevices of the metal substrate and improve electrical contact.
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，含有导电聚合物涂层的金属基板的阴极和电解质。 导电聚合物涂层是平均直径为约1至约500纳米，在一些实施方案中为约5至约400纳米，在一些实施方案中为约10至约300纳米的颗粒分散体的形式。 涂层中使用的相对小的颗粒尺寸增加了可用于粘附到金属基底上的表面积，这又表现出机械坚固性和电性能（例如降低的等效串联电阻和泄漏电流）。 将这种分散体用于导电聚合物涂层的另一个好处是可以更好地覆盖金属基底的裂缝并改善电接触。
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