公开(公告)号：US20110122543A1

公开(公告)日：2011-05-26

申请号：US13015679

申请日：2011-01-28

申请人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

发明人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

IPC分类号： H01G9/045 ,  C25D17/10 ,  H01G9/042

CPC分类号： C25D11/26 ,  C25D5/08 ,  C25D11/005 ,  C25D11/02 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07

摘要： A method and apparatus for anodizing a porous valve metal pellet in a flowing liquid electrolyte is described. The apparatus comprises an insulative container comprised of a lower region, a central region including a cavity for holding the pellet, an upper region, and a continuous passageway extending through the lower, central, and upper regions. Lower and upper screens serving as lower and upper electrodes are disposed in the passageway in the lower and upper container regions, respectively. During anodizing, the electrolyte flows through the lower container region including the lower screen, the porous pellet and then the upper container region including the upper screen. The lower and upper screens are at an opposite electrical polarity as the pellet so that a dielectric oxide is formed on the exposed valve metal including interior portions of the pellet that are exposed to the flowing electrolyte.

摘要翻译： 描述了一种在流动的液体电解质中阳极氧化多孔阀金属颗粒的方法和装置。 该装置包括由下部区域构成的绝缘容器，包括用于保持颗粒的空腔的中心区域，上部区域和延伸穿过下部区域，中部区域和上部区域的连续通道。 用作下电极和上电极的下屏幕和​​上屏幕分别设置在下容器区域和上容器区域中的通道中。 在阳极氧化期间，电解液流过下容器区域，包括下筛网，多孔颗粒，然后包括上筛网的上容器区域。 下部和上部筛网与丸粒具有相反的电极性，使得在暴露的阀金属上形成电介质氧化物，包括暴露于流动的电解质的颗粒的内部。

公开(公告)号：US07879217B2

公开(公告)日：2011-02-01

申请号：US11565766

申请日：2006-12-01

申请人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

发明人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

IPC分类号： C25D5/08

CPC分类号： C25D11/26 ,  C25D5/08 ,  C25D11/005 ,  C25D11/02 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07

摘要： A method and apparatus for anodizing a porous valve metal pellet in a flowing liquid electrolyte is described. The apparatus comprises an insulative container comprised of a lower region, a central region including a cavity for holding the pellet, an upper region, and a continuous passageway extending through the lower, central, and upper regions. Lower and upper screens serving as lower and upper electrodes are disposed in the passageway in the lower and upper container regions, respectively. During anodizing, the electrolyte flows through the lower container region including the lower screen, the porous pellet and then the upper container region including the upper screen. The lower and upper screens are at an opposite electrical polarity as the pellet so that a dielectric oxide is formed on the exposed valve metal including interior portions of the pellet that are exposed to the flowing electrolyte.

摘要翻译： 描述了一种在流动的液体电解质中阳极氧化多孔阀金属颗粒的方法和装置。 该装置包括由下部区域构成的绝缘容器，包括用于保持颗粒的空腔的中心区域，上部区域和延伸穿过下部区域，中部区域和上部区域的连续通道。 用作下电极和上电极的下屏幕和​​上屏幕分别设置在下容器区域和上容器区域中的通道中。 在阳极氧化期间，电解液流过下容器区域，包括下筛网，多孔颗粒，然后包括上筛网的上容器区域。 下部和上部筛网与丸粒具有相反的电极性，使得在暴露的阀金属上形成电介质氧化物，包括暴露于流动的电解质的颗粒的内部。

公开(公告)号：US20070125658A1

公开(公告)日：2007-06-07

申请号：US11565766

申请日：2006-12-01

申请人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

发明人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

IPC分类号： C25D11/26

CPC分类号： C25D11/26 ,  C25D5/08 ,  C25D11/005 ,  C25D11/02 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07

摘要： A method and apparatus for anodizing a porous valve metal pellet in a flowing liquid electrolyte is described. The apparatus comprises an insulative container comprised of a lower region, a central region including a cavity for holding the pellet, an upper region, and a continuous passageway extending through the lower, central, and upper regions. Lower and upper screens serving as lower and upper electrodes are disposed in the passageway in the lower and upper container regions, respectively. During anodizing, the electrolyte flows through the lower container region including the lower screen, the porous pellet and then the upper container region including the upper screen. The lower and upper screens are at an opposite electrical polarity as the pellet so that a dielectric oxide is formed on the exposed valve metal including interior portions of the pellet that are exposed to the flowing electrolyte.

摘要翻译： 描述了一种在流动的液体电解质中阳极氧化多孔阀金属颗粒的方法和装置。 该装置包括由下部区域构成的绝缘容器，包括用于保持颗粒的空腔的中心区域，上部区域和延伸穿过下部区域，中部区域和上部区域的连续通道。 用作下电极和上电极的下屏幕和​​上屏幕分别设置在下容器区域和上容器区域中的通道中。 在阳极氧化期间，电解液流过下容器区域，包括下筛网，多孔颗粒，然后包括上筛网的上容器区域。 下部和上部筛网与丸粒具有相反的电极性，使得在暴露的阀金属上形成电介质氧化物，包括暴露于流动的电解质的颗粒的内部。

公开(公告)号：US08313621B2

公开(公告)日：2012-11-20

申请号：US13015679

申请日：2011-01-28

申请人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

发明人： David Goad ,  Neal Nesselbeck ,  Jason Hahl

IPC分类号： C25D17/00 ,  C25D11/02

CPC分类号： C25D11/26 ,  C25D5/08 ,  C25D11/005 ,  C25D11/02 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07

摘要： A method and apparatus for anodizing a porous valve metal pellet in a flowing liquid electrolyte is described. The apparatus comprises an insulative container comprised of a lower region, a central region including a cavity for holding the pellet, an upper region, and a continuous passageway extending through the lower, central, and upper regions. Lower and upper screens serving as lower and upper electrodes are disposed in the passageway in the lower and upper container regions, respectively. During anodizing, the electrolyte flows through the lower container region including the lower screen, the porous pellet and then the upper container region including the upper screen. The lower and upper screens are at an opposite electrical polarity as the pellet so that a dielectric oxide is formed on the exposed valve metal including interior portions of the pellet that are exposed to the flowing electrolyte.

摘要翻译： 描述了一种在流动的液体电解质中阳极氧化多孔阀金属颗粒的方法和装置。 该装置包括由下部区域构成的绝缘容器，包括用于保持颗粒的空腔的中心区域，上部区域和延伸穿过下部区域，中部区域和上部区域的连续通道。 用作下电极和上电极的下屏幕和​​上屏幕分别设置在下容器区域和上容器区域中的通道中。 在阳极氧化期间，电解液流过下容器区域，包括下筛网，多孔颗粒，然后包括上筛网的上容器区域。 下部和上部筛网与丸粒具有相反的电极性，使得在暴露的阀金属上形成电介质氧化物，包括暴露于流动的电解质的颗粒的内部。

公开(公告)号：US20060196774A1

公开(公告)日：2006-09-07

申请号：US11164751

申请日：2005-12-05

申请人： Yanming Liu ,  Neal Nesselbeck ,  David Goad ,  Barry Muffoletto

发明人： Yanming Liu ,  Neal Nesselbeck ,  David Goad ,  Barry Muffoletto

IPC分类号： C25D5/18

CPC分类号： C25D11/06 ,  C25D11/024 ,  C25D11/26

摘要： A method for anodizing valve metal structures to a target formation voltage is described. The valve metal structures are placed in an anodizing electrolyte and connected to a power supply that generates a source voltage to at least one current limiting device. If at least two current limiting devices are used, they are in series with the valve metal structures with the one current limiting device connected to at least one structure. The valve metal structures are then subjected to a current that decreases over time, a formation voltage that increases over time to a level below the voltage from the power supply and a power level that is self-adjusted to a level that decreases excessive heating in the structure. The invention also includes the components for the method.

摘要翻译： 描述了一种将阀金属结构阳极氧化成目标地层电压的方法。 阀金属结构被放置在阳极氧化电解质中并且连接到向至少一个限流装置产生源电压的电源。 如果使用至少两个限流装置，则它们与阀金属结构串联，其中一个限流装置连接到至少一个结构。 然后对阀金属结构进行随时间的减小的电流，随时间而增加到低于电源电压的电平的地层电压和自调节到在 结构体。 本发明还包括该方法的组件。

公开(公告)号：US07727372B2

公开(公告)日：2010-06-01

申请号：US11164751

申请日：2005-12-05

申请人： Yanming Liu ,  Neal Nesselbeck ,  David Goad ,  Barry Muffoletto

发明人： Yanming Liu ,  Neal Nesselbeck ,  David Goad ,  Barry Muffoletto

IPC分类号： C25D11/00

CPC分类号： C25D11/06 ,  C25D11/024 ,  C25D11/26

摘要： A method for anodizing valve metal structures to a target formation voltage is described. The valve metal structures are placed in an anodizing electrolyte and connected to a power supply that generates a source voltage to at least one current limiting device. If at least two current limiting devices are used, they are in series with the valve metal structures with the one current limiting device connected to at least one structure. The valve metal structures are then subjected to a current that decreases over time, a formation voltage that increases over time to a level below the voltage from the power supply and a power level that is self-adjusted to a level that decreases excessive heating in the structure. The invention also includes the components for the method.

摘要翻译： 描述了一种将阀金属结构阳极氧化成目标地层电压的方法。 阀金属结构被放置在阳极氧化电解质中并且连接到向至少一个限流装置产生源电压的电源。 如果使用至少两个限流装置，则它们与阀金属结构串联，其中一个限流装置连接到至少一个结构。 然后对阀金属结构进行随时间的减小的电流，随时间而增加到低于电源电压的电平的地层电压和自调节到在 结构体。 本发明还包括该方法的组件。

公开(公告)号：US20060191796A1

公开(公告)日：2006-08-31

申请号：US11164682

申请日：2005-12-01

申请人： Barry Muffoletto ,  David Goad ,  Neal Nesselbeck ,  Ashish Shah ,  Joseph Spaulding ,  Monica Kaforey ,  Christina Scheuer ,  Yanming Liu

发明人： Barry Muffoletto ,  David Goad ,  Neal Nesselbeck ,  Ashish Shah ,  Joseph Spaulding ,  Monica Kaforey ,  Christina Scheuer ,  Yanming Liu

IPC分类号： C25D5/18

CPC分类号： H01G9/0032 ,  C25D11/024 ,  C25D11/04 ,  C25D11/06 ,  C25D11/12 ,  C25D11/26

摘要： The present invention is directed to a method for anodizing valve metal structures to a target formation voltage with a controlled power source.

摘要翻译： 本发明涉及一种用控制电源将阀金属结构阳极氧化成目标成层电压的方法。

公开(公告)号：US20070221507A1

公开(公告)日：2007-09-27

申请号：US11677342

申请日：2007-02-21

申请人： Yanming Liu ,  David Goad ,  David Budek ,  Christina Scheuer

发明人： Yanming Liu ,  David Goad ,  David Budek ,  Christina Scheuer

IPC分类号： C25D9/00

CPC分类号： C25D11/26 ,  A61N1/3975 ,  C25D11/024 ,  C25D11/08 ,  H01G9/0032

摘要： An improved formation electrolyte and method for anodizing valve metal anodes used in electrolytic capacitors, particularly for high voltage sintered tantalum powder anode, is described. The anodizing electrolyte composition is comprised of 1) a phosphorus oxyacid and/or its salt, such as phosphoric acid and ammonium phosphate; 2) a weak inorganic acid/salt (such as boric acid, ammonium borate) or a weak carboxylic acid/salt; 3) water; and 4) a protic solvent or a mixture of two or more protic solvents. The weak mono-carboxylic acid/salt has 2 to 7 carbon atoms and the weak di- or poly-carboxylic acid/salt has 3 to 13 carbon atoms. The present electrolytes have high anodizing breakdown voltage capability and the formed dielectric oxides have improved oxide quality including good oxide hydration resistant ability, and result in more stable capacitor performance. These properties are particularly important for critical applications such as implantable cardioverter defibrillators (ICDs). Significantly, this means that fewer capacitors are needed to meet an ICD's operating voltage.

摘要翻译： 描述了用于阳极氧化用于电解电容器中的阀金属阳极，特别是用于高压烧结钽粉末阳极的改进的地层电解质和方法。 阳极氧化电解质组合物包括1）磷酸和/或其盐如磷酸和磷酸铵; 2）弱无机酸/盐（如硼酸，硼酸铵）或弱羧酸/盐; 3）水; 和4）质子溶剂或两种或更多种质子溶剂的混合物。 弱单羧酸/盐具有2至7个碳原子，弱二羧酸/多羧酸/盐具有3至13个碳原子。 本发明的电解质具有高的阳极氧化击穿电压能力，并且形成的电介质氧化物具有改善的氧化物质量，包括良好的氧化物水合抗性能，并且导致更稳定的电容器性能。 这些特性对于诸如植入式心律转复除颤器（ICD）等关键应用尤其重要。 重要的是，这意味着需要更少的电容来满足ICD的工作电压。

公开(公告)号：US20050254199A1

公开(公告)日：2005-11-17

申请号：US11128849

申请日：2005-05-13

申请人： Yanming Liu ,  Barry Muffoletto ,  David Goad

发明人： Yanming Liu ,  Barry Muffoletto ,  David Goad

IPC分类号： H01G9/00 ,  H01G9/042 ,  H01G9/052 ,  H01G9/07

CPC分类号： H01G9/042 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07 ,  Y10T29/41 ,  Y10T29/417

摘要： An oxygen plasma process for treating a dielectric oxide layer, particularly an anodic oxide, subsequent to its incorporation into an electrolytic capacitor is described. The present treatment reduces DC leakage and improves shelf life stability of the resulting capacitor in comparison to anodic oxides treated in a conventional manner. This is important for critical applications such as implantable cardioverter defibrillators where capacitor charging time and charge/discharge energy efficiency are critical.

摘要翻译： 描述了用于处理电介质氧化物层，特别是阳极氧化物的氧等离子体处理，其在其结合到电解电容器中之后。 与以常规方式处理的阳极氧化物相比，本发明的处理降低了DC泄漏并改善了所得电容器的保质期稳定性。 这对关键应用非常重要，例如其中电容器充电时间和充电/放电能量效率至关重要的植入式心律转复除颤器。

公开(公告)号：US07286336B2

公开(公告)日：2007-10-23

申请号：US11128849

申请日：2005-05-13

申请人： Yanming Liu ,  Barry Muffoletto ,  David Goad

发明人： Yanming Liu ,  Barry Muffoletto ,  David Goad

IPC分类号： H01G9/04

CPC分类号： H01G9/042 ,  H01G9/0032 ,  H01G9/052 ,  H01G9/07 ,  Y10T29/41 ,  Y10T29/417

摘要： An oxygen plasma process for treating a dielectric oxide layer, particularly an anodic oxide, subsequent to its incorporation into an electrolytic capacitor is described. The present treatment reduces DC leakage and improves shelf life stability of the resulting capacitor in comparison to anodic oxides treated in a conventional manner. This is important for critical applications such as implantable cardioverter defibrillators where capacitor charging time and charge/discharge energy efficiency are critical.

摘要翻译： 描述了用于处理电介质氧化物层，特别是阳极氧化物的氧等离子体处理，其在其结合到电解电容器中之后。 与以常规方式处理的阳极氧化物相比，本发明的处理降低了DC泄漏并改善了所得电容器的保质期稳定性。 这对关键应用非常重要，例如其中电容器充电时间和充电/放电能量效率至关重要的植入式心律转复除颤器。