Method of making a capacitor by anodizing aluminum foil in a glycerine-phosphate electrolyte without a pre-anodizing hydration step
    1.
    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

    IPC分类号: C25D11/06

    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。

    CAPACITOR CONTAINING ALUMINUM ANODE FOIL ANODIZED IN LOW WATER CONTENT GLYCERINE-PHOSPHATE ELECTROLYTE WITHOUT A PRE-ANODIZING HYDARATION STEP
    2.
    发明申请
    CAPACITOR CONTAINING ALUMINUM ANODE FOIL ANODIZED IN LOW WATER CONTENT GLYCERINE-PHOSPHATE ELECTROLYTE WITHOUT A PRE-ANODIZING HYDARATION STEP 有权
    电容器包含在低水含量甘油 - 磷酸盐电解质中阳极氧化铝阳极氧化铝,不经过预处理的加氢步骤

    公开(公告)号:US20090205970A1

    公开(公告)日:2009-08-20

    申请号:US12427838

    申请日:2009-04-22

    IPC分类号: C25D11/10

    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。

    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

    IPC分类号: C25D1112

    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 producing aluminum foil for electrolytic capacitors and
product thereof
    6.
    发明授权
    Method of producing aluminum foil for electrolytic capacitors and product thereof 失效
    电解电容器用铝箔的制造方法及其制造方法

    公开(公告)号:US5715133A

    公开(公告)日:1998-02-03

    申请号:US569513

    申请日:1995-12-08

    CPC分类号: H01G9/055 C25F3/04 C25F7/00

    摘要: An electrochemical cell for etching a metal workpiece such as an aluminum foil, a method for etching the foil using the electrochemical cell, and foil thus produced is provided. The cell includes an etch tank having an etch electrolyte disposed therein and containing at least a first and a second compartment each containing (i)an etch electrolyte, (ii) a cathode plate, and (iii) an ion exchange membrane separator portion comprising an ion exchange polymeric material effective to substantially retard or prevent reduction of the oxidizing agent or agents present in the etch electrolyte, the first and second compartments being arranged in the etch tank with the ion exchange membrane separator portions in facing relationship one to the other; and a metal workpiece such as an aluminum foil anode present in the etch tank and disposed between each said first and second compartments.

    摘要翻译: 提供了一种用于蚀刻诸如铝箔的金属工件的电化学电池,用于使用电化学电池蚀刻箔的方法和由此制造的箔。 电池包括具有设置在其中的蚀刻电解质的蚀刻槽,并且至少包含第一和第二隔室,每个隔室包含(i)蚀刻电解质,(ii)阴极板,和(iii)离子交换膜分离器部分, 离子交换聚合物材料有效地基本上延迟或防止蚀刻电解质中存在的氧化剂或试剂的还原,第一和第二隔室被布置在蚀刻槽中,离子交换膜分离器部分彼此面对关系; 以及存在于蚀刻槽中并设置在每个所述第一和第二隔室之间的金属工件,例如铝箔阳极。

    Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte
    7.
    发明授权
    Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte 失效
    含有铝阳极箔的电容器在低含水量甘油磷酸盐电解质中阳极氧化

    公开(公告)号:US07342773B2

    公开(公告)日:2008-03-11

    申请号:US11352050

    申请日:2006-02-10

    IPC分类号: H01G9/02

    摘要: A capacitor comprising an aluminum anode and a dielectric layer comprising phosphate doped aluminum oxide and process for making the capacitor. Furthermore, the capacitor is formed by the process of: forming an aluminum plate; pre-hydrating the aluminum; 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。 此外,电容器通过以下工序形成:形成铝板; 预水化铝; 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。

    Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte without a pre-anodizing hydration step
    8.
    发明授权
    Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte without a pre-anodizing hydration step 失效
    含有铝阳极箔的电容器在低含水量的甘油磷酸盐电解质中阳极氧化,而没有预阳极氧化水合步骤

    公开(公告)号:US07125610B2

    公开(公告)日:2006-10-24

    申请号:US10390529

    申请日:2003-03-17

    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。