Thermal treatment process for valve metal nitride electrolytic capacitors having manganese oxide cathodes
    2.
    发明授权
    Thermal treatment process for valve metal nitride electrolytic capacitors having manganese oxide cathodes 失效
    具有氧化锰阴极的阀金属氮化物电解电容器的热处理工艺

    公开(公告)号:US06377443B1

    公开(公告)日:2002-04-23

    申请号:US09766583

    申请日:2001-01-23

    IPC分类号: H01G904

    CPC分类号: H01G9/0032 H01G9/0425

    摘要: An electrolytic capacitor comprising a thermally treated anode prepared by heating a manganese dioxide coated porous anodized valve metal nitride anode to a temperature of about 325° C. to about 450° C. The anode may be heated to first temperature of about 200° C. to about 250° C. for a time sufficient for the valve metal nitride anode to reach thermal equilibrium, prior to increasing the temperature to about 325° C. to about 450° C.

    摘要翻译: 一种电解电容器,其包括通过将二氧化锰涂覆的多孔阳极氧化阀金属氮化物阳极加热至约325℃至约450℃的温度制备的经热处理的阳极。阳极可被加热至约200℃的第一温度 在将温度升高至约325℃至约450℃之前,足以使阀金属氮化物阳极达到热平衡的时间达到约250℃。

    Chemical oxidative preparation of conductive polymers
    5.
    发明授权
    Chemical oxidative preparation of conductive polymers 有权
    导电聚合物的化学氧化制备

    公开(公告)号:US06334966B1

    公开(公告)日:2002-01-01

    申请号:US09705913

    申请日:2000-11-06

    IPC分类号: H01B112

    摘要: An intrinsically conductive polymer is prepared with a chemical oxidative process. The polymer is prepared by first dipping or coating a substrate with an Fe(III)-containing oxidizer solution and drying. The substrate is then dipped or coated with a monomer, such as 3,4-ethylenedioxythiophene solution, and reacted to form the conductive polymer. The monomer is dissolved in a solvent in which it has a high solubility but in which the Fe(III)-containing oxidizer has low solubility. This minimizes cross-contamination of the monomer and oxidizer dipping solutions thereby making this process suitable for high volume production. Dissolving the monomer in a solvent allows control over the stoichiometric ratio of monomer to oxidizer and prevents an excess of monomer thereby facilitating the removal of any unreacted monomer by water. The substrate is then dipped in an aqueous solution of para-toluenesulfonic acid to facilitate the removal of Fe(II) byproducts by enhancing their solubility in water and then the substrate may be washed with an aqueous solution or pure water. The process produces low ESR and low leakage valve metal capacitors with conductive polymer cathodes.

    摘要翻译: 用化学氧化法制备固有导电的聚合物。 通过首先用含Fe(III)的氧化剂溶液浸渍或涂覆基底并干燥来制备聚合物。 然后将基材浸渍或涂覆单体如3,4-亚乙基二氧噻吩溶液,并反应形成导电聚合物。 将单体溶解在其溶解度高的溶剂中,其中含有Fe(III)的氧化剂具有低溶解度。 这使得单体和氧化剂浸渍溶液的交叉污染最小化,从而使得该方法适合于大批量生产。 将单体溶解在溶剂中允许控制单体与氧化剂的化学计量比,并防止过量的单体,从而有助于通过水除去任何未反应的单体。 然后将底物浸入对甲苯磺酸的水溶液中,以便通过增加其在水中的溶解度来除去Fe(II)副产物,然后用水溶液或纯水洗涤底物。 该过程产生低导电聚合物阴极的低ESR和低泄漏阀金属电容器。

    Method of operating process for anodizing valve metals
    8.
    发明授权
    Method of operating process for anodizing valve metals 失效
    阳极氧化阀金属的操作方法

    公开(公告)号:US06235181B1

    公开(公告)日:2001-05-22

    申请号:US09265593

    申请日:1999-03-10

    IPC分类号: C25D1104

    摘要: A method of anodizing a metal comprising immersing a metal substrate into an a glycerine-based electrolytic solution and applying a constant current to produce a uniform film. The electrolytic solution additionally comprises at least one acidic organic salt, inorganic salt, or mixtures thereof. Suitable salts include dibasic potassium phosphate, P-toluene sulfonate, potassium hydrogen sulfate and monobasic potassium tartrate. The electrolytic solution may be prepared by mixing glycerine and the salt or salts, and then heating the solution to about 150 to 180° C. for about 1 to 12 hours. The prepared solution preferably has a water content of less than 0.1 wt %. Anodizing may be performed in the electrolytic solution at temperatures above about 150° C. to achieve non-thickness-limited film growth. Temperature fluctuations within the solution are reduced by the use of impellers or ultrasonic agitation.

    摘要翻译: 一种阳极氧化金属的方法,包括将金属基底浸入基于甘油的电解液中并施加恒定电流以产生均匀的膜。 电解液还包含至少一种酸性有机盐,无机盐或其混合物。 合适的盐包括磷酸氢二钾,对甲苯磺酸钾,硫酸氢钾和酒石酸钾。 电解液可以通过将甘油和盐或盐混合,然后将溶液加热至约150至180℃约1至12小时来制备。 制备的溶液优选具有小于0.1重量%的水含量。 阳极氧化可以在高于约150℃的温度下在电解液中进行,以实现非厚度限制的膜生长。 通过使用叶轮或超声波搅拌,可以降低溶液内的温度波动。

    Process for treating impregnated electrolytic capacitor anodes
    9.
    发明授权
    Process for treating impregnated electrolytic capacitor anodes 失效
    处理浸渍电解电容器阳极的方法

    公开(公告)号:US06183618B2

    公开(公告)日:2001-02-06

    申请号:US09241604

    申请日:1999-02-02

    IPC分类号: C25D502

    CPC分类号: H01G9/0029 H01G9/022

    摘要: A process for treating an impregnated electrolytic capacitor anode whereby the anode body is immersed in a liquid electrolytic solution and a voltage is applied to the anode body, whereby a current flows through and repairs flaw sites in the anode body. The liquid electrolytic solution includes an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether. Alternatively, the electrolytic solution includes an organic solvent and an alkali metal phosphate salt. Preferably, the electrolytic solution contains both an alkali metal phosphate salt and an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.

    摘要翻译: 一种用于处理浸渍的电解电容器阳极的方法,由此将阳极体浸入液体电解液中并向阳极体施加电压,由此电流流过并修复阳极体中的缺陷位置。 液体电解液包括包含聚乙二醇,聚乙二醇单甲醚和聚乙二醇二甲醚中的至少一种的有机溶剂。 或者,电解液包括有机溶剂和碱金属磷酸盐。 优选地,电解液含有碱金属磷酸盐和包含聚乙二醇,聚乙二醇单甲醚和聚乙二醇二甲醚中的至少一种的有机溶剂。