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    Method of anodizing aluminum capacitor foil for use in low voltage, surface mount capacitors
    3.
    发明授权
    Method of anodizing aluminum capacitor foil for use in low voltage, surface mount capacitors 失效
    用于低电压，表面贴装电容器的铝电容器箔的阳极氧化方法

    公开(公告)号：US06540900B1

    公开(公告)日：2003-04-01

    申请号：US09977244

    申请日：2001-10-16

    申请人： John Tony Kinard ,  Brian John Melody ,  Philip Michael Lessner ,  Albert Kennedy Harrington ,  David Alexander Wheeler ,  Erik Karlsen Reed ,  Duane Earl Stenziner

    发明人： John Tony Kinard ,  Brian John Melody ,  Philip Michael Lessner ,  Albert Kennedy Harrington ,  David Alexander Wheeler ,  Erik Karlsen Reed ,  Duane Earl Stenziner

    IPC分类号： C25D1112

    CPC分类号： H01G9/0032 ,  C25D11/06 ,  C25D11/12

    摘要： Disclosed is a process for the continuous anodizing of aluminum foil for use in aluminum electrolytic capacitors. Specifically, etched anode foil is anodized to relatively low voltage in a two-step reel-to-reel process. The process is particularly useful for anodizing highly-etched aluminum foil for use in surface mount aluminum capacitors containing conductive polymer cathode material. The process is economical and provides high foil quality. Specifically, the process for anodizing aluminum foil comprises anodizing the foil in a first electrolyte a solution, passing the foil through an oven, anodizing the foil in a second anodizing solution wherein the first electrolyte solution and second electrolyte solution each comprise about 5 wt % to about 50 wt % glycerine, about 0.01 wt % to about 0.2 wt % ammonium phosphate, and de-ionized water, and wherein the foil is anodized in the first electrolyte solution for at least 3.5 minutes

    摘要翻译： 公开了用于铝电解电容器中的铝箔的连续阳极氧化的方法。 具体地说，将蚀刻的阳极箔以两步卷对卷的方式进行阳极氧化至较低的电压。 该方法对于用于含有导电聚合物阴极材料的表面贴装铝电容器中的高度蚀刻的铝箔的阳极氧化特别有用。 该方法是经济的并且提供高的箔质量。 具体地说，阳极氧化铝箔的方法包括在第一电解液中阳极氧化溶液，使箔通过烘箱，在第二阳极氧化溶液中对箔进行阳极氧化，其中第一电解质溶液和第二电解质溶液各自包含约5重量％ 约50重量％的甘油，约0.01重量％至约0.2重量％的磷酸铵和去离子水，并且其中该箔在第一电解质溶液中阳极氧化至少3.5分钟

    Method of making a capacitor by anodizing aluminum foil in a glycerine-phosphate electrolyte without a pre-anodizing hydration step
    10.
    发明授权
    Method of making a capacitor by anodizing aluminum foil in a glycerine-phosphate electrolyte without a pre-anodizing hydration step 有权
    通过在没有预阳极氧化水合步骤的情况下通过在甘油磷酸盐电解质中阳极氧化铝箔来制造电容器的方法

    公开(公告)号：US07780835B2

    公开(公告)日：2010-08-24

    申请号：US12427838

    申请日：2009-04-22

    申请人： John Tony Kinard ,  Brian John Melody ,  David Alexander Wheeler ,  Duane Earl Stenzinger ,  Albert Kennedy Harrington

    发明人： John Tony Kinard ,  Brian John Melody ,  David Alexander Wheeler ,  Duane Earl Stenzinger ,  Albert Kennedy Harrington

    IPC分类号： C25D11/06

    CPC分类号： H01G9/0032 ,  C25D5/18 ,  C25D11/06 ,  C25D11/16 ,  H01G9/045 ,  H01G9/055 ,  Y10S428/935

    摘要： A capacitor comprising an aluminum anode and a dielectric layer comprising phosphate doped aluminum oxide and process for making the capacitor. The capacitor has a CV Product of at least 9 μF−V/cm2 at 250 volts. Furthermore, the capacitor is formed by the process of: forming an aluminum plate; contacting the plate with an anodizing solution comprising glycerine, 0.1 to 1.0%, by weight, water and 0.01 to 0.5%, by weight, orthophosphate; applying a voltage to the aluminum plate and determining an initial current; maintaining the first voltage until a first measured current is no more than 50% of the initial current; increasing the voltage and redetermining the initial current; maintaining the increased voltage until a second measured current is no more than 50% of the redetermined initial current, and continuing the increasing of the voltage and maintaining the increased voltage until a final voltage is achieved.

    摘要翻译： 包括铝阳极和包含磷酸盐掺杂的氧化铝的介电层的电容器和用于制造电容器的工艺。 该电容器具有在250伏特下至少9μF-V / cm 2的CV产品。 此外，电容器通过以下工序形成：形成铝板; 使板与阳极氧化溶液接触，所述阳极氧化溶液包含0.1-1.0％（重量）的水和0.01至0.5％重量的正磷酸的甘油; 向铝板施加电压并确定初始电流; 保持第一电压，直到第一测量电流不超过初始电流的50％; 增加电压并重新确定初始电流; 维持增加的电压，直到第二测量电流不超过重新确定的初始电流的50％，并且继续增加电压并保持升高的电压直到达到最终电压。