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    Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode
    1.
    发明授权
    Process of preparing a solid electrolytic capacitor containing a conductive polymer counter electrode 有权
    制备含有导电聚合物对电极的固体电解电容器的方法

    公开(公告)号：US06391379B1

    公开(公告)日：2002-05-21

    申请号：US09148486

    申请日：1998-09-04

    Applicant: Philip M. Lessner ,  Tsung-Yuan Su ,  Brian J. Melody ,  John T. Kinard ,  Veeriya Rajasekaran

    Inventor： Philip M. Lessner ,  Tsung-Yuan Su ,  Brian J. Melody ,  John T. Kinard ,  Veeriya Rajasekaran

    IPC: B05D512

    CPC classification number: H01G9/025 ,  H01G9/0425 ,  Y10T29/417

    Abstract: The present invention relates to a method for making a solid electrolytic capacitor having a low equivalent series resistance by impregnating a porous capacitor pellet with conductive polymer. An oxidized pellet is dipped in a high concentration conductive polymer solution to deposit the polymer in doped (conductive) form. The solution also contains a crosslinking agent to prevent redissolution of the polymer when the pellet is re-dipped. After dipping, the solvent in the polymer solution is evaporated and a conductive film formed. In order to evaporate the solvent quickly, the solvent should have a boiling point of 80-220° C. and preferably a boiling point of 100-150° C. The conductive polymer film has a low resistivity (less than 1 ohm-cm, preferably less than 0.2 ohm-cm).

    Abstract translation: 本发明涉及一种制造具有低等效串联电阻的固体电解电容器的方法，该方法是用导电聚合物浸渍多孔电容器片。 将氧化的颗粒浸入高浓度的导电聚合物溶液中以沉积聚合物的掺杂（导电）形式。 该溶液还含有一种交联剂，以防止当沉淀物重新浸渍时聚合物的再溶解。 浸渍后，蒸发聚合物溶液中的溶剂并形成导电膜。 为了快速蒸发溶剂，溶剂的沸点应为80-220℃，优选沸点为100-150℃。导电聚合物膜具有低电阻率（小于1欧姆 - 厘米2， 优选小于0.2欧姆 - 厘米）。

    Preparation of conductive polymers from stabilized precursor solutions
    2.
    发明授权
    Preparation of conductive polymers from stabilized precursor solutions 失效
    从稳定的前体溶液制备导电聚合物

    公开(公告)号：US6136372A

    公开(公告)日：2000-10-24

    申请号：US438060

    申请日：1999-11-10

    Applicant: Philip M. Lessner ,  Tsung-Yuan Su ,  Randolph S. Hahn ,  Veeriya Rajasekaran

    Inventor： Philip M. Lessner ,  Tsung-Yuan Su ,  Randolph S. Hahn ,  Veeriya Rajasekaran

    IPC: C08G61/12 ,  H01B1/12 ,  H01G9/028 ,  H01B1/00

    CPC classification number: H01B1/127 ,  H01G11/48 ,  H01G11/56 ,  Y02E60/13

    Abstract: Conductive polymers are prepared from a stabilized solution containing a monomer, an Fe(III) oxidizing agent, and a mixed solvent. The solvents are selected to stabilize the Fe(III) oxidizing agent and monomer in solution while allowing highly conducting polymers to be produced upon evaporating the lower-boiling solvent. The higher-boiling solvent does not appreciably complex with Fe(III), while the lower-boiling solvent forms a weak complex with Fe(III). The mixed-solvent system of the present invention may be used for preparing a conductive polymer counter electrode in a solid tantalum capacitor by polymerizing the monomer inside a porous tantalum pellet.

    Abstract translation: 导电聚合物由含有单体，Fe（III）氧化剂和混合溶剂的稳定溶液制备。 选择溶剂以稳定溶液中的Fe（III）氧化剂和单体，同时允许在蒸发低沸点溶剂时产生高导电性聚合物。 较高沸点溶剂与Fe（III）不明显复合，而低沸点溶剂与Fe（III）形成弱络合物。 本发明的混合溶剂系统可用于通过在多孔钽颗粒内部聚合单体来制备固体钽电容器中的导电聚合物对电极。

    Process for improving leakage and dissipation factor of solid electrolytic capacitors employing conductive polymer cathodes
    3.
    发明授权
    Process for improving leakage and dissipation factor of solid electrolytic capacitors employing conductive polymer cathodes 失效
    使用导电聚合物阴极改善固体电解电容器泄漏和耗散因子的方法

    公开(公告)号：US06191013B1

    公开(公告)日：2001-02-20

    申请号：US09461428

    申请日：1999-12-16

    Applicant: Randolph S. Hahn ,  Philip M. Lessner ,  Veeriya Rajasekaran

    Inventor： Randolph S. Hahn ,  Philip M. Lessner ,  Veeriya Rajasekaran

    IPC: H01L21265

    CPC classification number: H01G9/025 ,  H01G9/0425 ,  H01G11/48 ,  H01G11/56 ,  Y02E60/13

    Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R1—R3)—Si—(OR2)3. Each of R2 and R3 is a C1-C6 alkyl group such as methyl, ethyl, or propyl R1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.

    Abstract translation: 通过在聚合物浸渍溶液中引入硅烷偶联剂，导电聚合物膜与氧化多孔颗粒阳极的粘附性得到改善。 硅烷偶联剂的引入也降低了泄漏电流和损耗因子。 合适的硅烷是通式（R1-R3）-Si-（OR2）3的硅烷。 R2和R3各自为C1-C6烷基，例如甲基，乙基或丙基，R1可以选自多种有机官能团，如环氧，缩水甘油氧基，氨基和吡咯。 最优选的硅烷是3-缩水甘油氧基丙基三甲氧基硅烷。

    Electrolytic capacitor with improved leakage and dissipation factor
    4.
    发明授权
    Electrolytic capacitor with improved leakage and dissipation factor 有权
    电解电容器具有改善的泄漏和损耗因数

    公开(公告)号：US6072694A

    公开(公告)日：2000-06-06

    申请号：US163318

    申请日：1998-09-30

    Applicant: Randolph S. Hahn ,  Philip M. Lessner ,  Veeriya Rajasekaran

    Inventor： Randolph S. Hahn ,  Philip M. Lessner ,  Veeriya Rajasekaran

    IPC: H01G9/028 ,  H01G9/00 ,  H01G9/02 ,  H01G9/025 ,  H01G9/042 ,  H01G9/15

    CPC classification number: H01G9/025 ,  H01G11/48 ,  H01G11/56 ,  H01G9/0425 ,  Y02E60/13

    Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R.sup.1 --R.sup.3)--Si--(OR.sup.2).sub.3. Each of R.sup.2 and R.sup.3 is a C.sub.1 -C.sub.6 alkyl group such as methyl, ethyl, or propyl. R.sup.1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.

    Abstract translation: 通过在聚合物浸渍溶液中引入硅烷偶联剂，导电聚合物膜与氧化多孔颗粒阳极的粘附性得到改善。 硅烷偶联剂的引入也降低了泄漏电流和损耗因子。 合适的硅烷是通式（R1-R3）-Si-（OR2）3的硅烷。 R2和R3各自为C1-C6烷基，例如甲基，乙基或丙基。 R1可以选自各种有机官能团，例如环氧，缩水甘油氧基，氨基和吡咯。 最优选的硅烷是3-缩水甘油氧基丙基三甲氧基硅烷。

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