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公开(公告)号：US4959753A
公开(公告)日：1990-09-25
申请号：US404465
申请日：1989-09-08
申请人： Yasuo Kudoh , Sohji Tsuchiya , Toshikuni Kojima , Masao Fukuyama , Susumu Yoshimura , Kenji Kuranuki
发明人： Yasuo Kudoh , Sohji Tsuchiya , Toshikuni Kojima , Masao Fukuyama , Susumu Yoshimura , Kenji Kuranuki
摘要： A solid electrolytic capacitor comprising:an electrolyte comprising a conductive polymer (i) having a repeating unit of at least one compound selected from a heterocyclic compound and (ii) containing as a dopant at least one anion selected from a napthalenesulfonate, an alkyl naphthalenesulfonate at least one of hydrogen atoms on the naphthalene ring of which has been substituted with an alkyl group having 1 to 12 carbon atoms, an anthraquinoesulfonate, and an alkyl anthraquinonesulfonate at least one of hydrogen atoms on the anthraquinone ring of which has been substituted with an alkyl group having 1 to 12 carbon atoms;said electrolyte being provided on a valve metal on the surface of which a dielectric film is formed by anodic oxidation or anodic chemical conversion.Also disclosed is a method of manufacturing the solid electrolytic capacitor, in which the electrolyte is formed by electrolytic polymerization.
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公开(公告)号：US4943892A
公开(公告)日：1990-07-24
申请号：US331204
申请日：1989-03-31
CPC分类号： H01G9/025 , H01G9/028 , H01G9/15 , Y10T29/417
摘要： A solid electrolytic capacitor comprising a capacitor element which includes a valve metal member capable of forming a dielectric oxide film thereon, a dielectric oxide film formed on the valve metal member, a manganese oxide layer formed on the dielectric oxide film, a conductive polymer film formed on the manganese oxide film by electrolytic polymerization, and terminals formed on the valve metal member and the conductive polymer film, respectively. The solid electrolytic capacitor is improved in capacitor characteristics. A method for manufacturing the solid electrolyte is also described wherein the conductive polymer film is readily formed on the manganese dioxide layer.
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公开(公告)号：US5071521A
公开(公告)日：1991-12-10
申请号：US578161
申请日：1990-09-06
申请人： Toshikuni Kojima , Masao Fukuyama , Sohji Tsuchiya , Yasuo Kudoh
发明人： Toshikuni Kojima , Masao Fukuyama , Sohji Tsuchiya , Yasuo Kudoh
CPC分类号： H01G9/025 , Y10T29/417
摘要： A method for fabricating a solid electrolytic capacitor is described, in which a solid electrolyte is made of a conductive polymer layer and is formed on a conductive inorganic layer which is formed on a metallic foil through a dielectric film. For the formation of the conductive polymer layer, while an external electrode is not directly contacted with the conductive inorganic layer, the electrolytic polymerization reaction of a polymerizable monomer in an electrolytic solution is carried out. For this purpose, the external electrode may be covered with a conductive polymer film at the contact portion. Alternatively, the external electrode may be moved from one position to another or may be kept apart from the conductive inorganic layer during the electrolytic polymerization reaction. By this, the mechanical damages of the conductive inorganic layer with the external electrode are suppressed with good electric characteristics of the capacitor.
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公开(公告)号：US4729844A
公开(公告)日：1988-03-08
申请号：US919999
申请日：1986-10-17
CPC分类号： H01G9/028
摘要： A solid electrolyte of an electrolytic capacitor is constituted of an ion radical complex salt of N-isoamylisoquinolinium(TCNQ).sub.2, or the N-isoamylisoquinolinium(TCNQ).sub.2 and neutral TCNQ, and the solid electrolyte has high heat fusability, high heat stability and splendid infiltration ability into an anode oxide film, and is disposed between the anode oxide film and a cathode, and therefore, a capacitance, dielectric loss and life of the capacitor are improved.
摘要翻译： 电解电容器的固体电解质由N-异戊基异喹啉鎓（TCNQ）2或N-异戊基异喹啉（TCNQ）2和中性TCNQ的离子基配合盐构成，固体电解质具有高热熔融性，高热稳定性和 并且设置在阳极氧化膜和阴极之间，从而提高了电容的电容，介电损耗和寿命。
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公开(公告)号：US5117332A
公开(公告)日：1992-05-26
申请号：US705980
申请日：1991-05-28
申请人： Yasuo Kudoh , Sohji Tsuchiya , Masao Fukuyama , Toshikuni Kojima , Junji Ozaki , Yasuhiro Kobatake
发明人： Yasuo Kudoh , Sohji Tsuchiya , Masao Fukuyama , Toshikuni Kojima , Junji Ozaki , Yasuhiro Kobatake
IPC分类号： H01G9/02
摘要： A method for manufacturing a solid electrolytic capacitor is described. The method comprises providing a valve metal member which has a dielectric film and an inorganic conductive layer formed on opposite sides of the valve metal member in this order, immersing the valve metal member in an electrolytic polymerization solution, and applying an electric potential sufficient to cause electrolytic polymerization between a first polymerization electrode which is provided on said at least one side of said valve metal member through an electric insulating member and a second polymerization electrode kept away from said first polymerization electrode. Further, the valve metal member may be separated into two regions with an insulating separation layer. One region is a capacitor region and the other is an anode terminal region. The anode terminal region is enfolded or convolutely wound to improve the volumetric efficiency. Solid electrolytic capacitors manufactured by the methods are also described.
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公开(公告)号：US5140502A
公开(公告)日：1992-08-18
申请号：US667988
申请日：1991-03-12
申请人： Yasuo Kudoh , Sohji Tsuchiya , Toshikuni Kojima , Masao Fukuyama
发明人： Yasuo Kudoh , Sohji Tsuchiya , Toshikuni Kojima , Masao Fukuyama
IPC分类号： H01G9/08
CPC分类号： H01G9/08 , Y10T29/417
摘要： Solid electrolytic capacitors comprise a capacitor element having a valve metal substrate, a dielectric film formed thereon, and a conductive polymer layer formed on the dielectric film. The capacitor element is encased in a resin casing as not directly contacting the element with the resin casing. The capacitance and leakage current characteristics are improved. Alternatively, a capacitor element includes a valve metal substrate, a dielectric film, an inorganic conductive layer and a conductive polymer layer formed on the substrate in this order, wherein the conductive polymer layer is formed after anodization of the inorganic conductive layer bearing substrate. The life of the resulting capacitor is significantly prolonged. This capacitor element may be encased in a resin casing in a manner as set forth above. Methods for manufacturing the solid electrolytic capacitor are also provided.
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公开(公告)号：US4864472A
公开(公告)日：1989-09-05
申请号：US175216
申请日：1988-03-30
CPC分类号： H01G9/012 , C08G61/123 , H01G9/025 , Y10T29/417
摘要： A solid electrolytic capacitor uses a solid electrolyte wherein manganese dioxide is uniformly diffused in a polymer made by electrochemical polymerization, and the solid electrolyte is disposed between a first electrode made of valve metal and having an anodic oxide film thereon and a second electrode opposite to the first electrode. The solid electrolytic capacitor shows splendid high frequency characteristics and small leakage current.
摘要翻译： 固体电解电容器使用固体电解质，其中二氧化锰均匀扩散在通过电化学聚合制成的聚合物中，并且固体电解质设置在由阀金属制成的第一电极和其上具有阳极氧化膜的第一电极和与其相对的第二电极 第一电极。 固体电解电容器具有极高的频率特性和较小的漏电流。
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公开(公告)号：US4828738A
公开(公告)日：1989-05-09
申请号：US122231
申请日：1987-11-13
申请人： Sohji Tsuchiya , Toshikuni Kojima , Yasuo Kudoh , Susumu Yoshimura , Yasunari Hoshii , Hirohiko Itoh
发明人： Sohji Tsuchiya , Toshikuni Kojima , Yasuo Kudoh , Susumu Yoshimura , Yasunari Hoshii , Hirohiko Itoh
CPC分类号： H01G9/028
摘要： The present invention provides a solid electrolytic capacitor which comprises a first electrode comprising a valve action metal plate one surface of which is covered by an anodic oxidation film, a second electrode which faces the surface of the first electrode having the anodic oxidation film and a layer of a solid electrolyte which is placed between the first and second electrodes and comprises a salt of 7,7,8,8-tetracyanoquinodimethane with a cation of quinoline or isoquinoline the nitrogen atom of which is quarternarized with fluorinated alkyl groups, which has improved reliability at high temperature and increased capacitance, and decreases the formation of poisonous gas during pyrolysis.
摘要翻译： 本发明提供一种固体电解电容器，其包括第一电极，该第一电极包括其一个表面被阳极氧化膜覆盖的阀作用金属板，面向具有阳极氧化膜的第一电极的表面的第二电极和层 固体电解质放置在第一和第二电极之间并且包括具有喹啉或异喹啉阳离子的7,7,8,8-四氰基醌二甲烷的盐，其氮原子被氟化烷基季铵化，其具有改善的可靠性 在高温下增加电容，并减少热解过程中有毒气体的形成。
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9.发明授权Method for fabricating solid electrolytic capacitors using an organic conductive layer 失效使用有机导电层制造固体电解电容器的方法
公开(公告)号：US5223120A
公开(公告)日：1993-06-29
申请号：US795564
申请日：1991-11-21
申请人： Toshikuni Kojima , Masao Fukuyama , Yasuo Kudoh , Norishige Nanai
发明人： Toshikuni Kojima , Masao Fukuyama , Yasuo Kudoh , Norishige Nanai
CPC分类号： H01G9/0036 , H01G9/15
摘要： A method for fabricating solid electrolytic capacitors which comprises providing a valve metal foil having a dielectric film and a conductive inorganic film formed on the valve metal foil in this order, contacting an electrode for electrolytic polymerization with part of the valve metal foil wherein the electrode is made of a material incapable of undergoing anodization in an electrolytic polymerization solution, subjecting the valve metal foil to electrolytic polymerization by application of a potential between the electrode and a counter electrode to form a conductive polymer film on the conductive inorganic film, and removing the electrode along with the contacted portion of the valve metal foil. At least one conductive paste film may be formed on the conductive polymer film prior to the removal of the electrode. In addition, an insulating film may be formed on an exposed portion of the valve metal foil after the removal of the electrode. A fabrication method of a capacitor unit having at least two capacitor elements is also described.
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公开(公告)号：US5187649A
公开(公告)日：1993-02-16
申请号：US863902
申请日：1992-04-06
申请人： Yasuo Kudoh , Masao Fukuyama , Toshikuni Kojima , Norishige Nanai
发明人： Yasuo Kudoh , Masao Fukuyama , Toshikuni Kojima , Norishige Nanai
CPC分类号： H01G9/025 , Y10T29/417
摘要： A solid electrolytic capacitor comprises a valve metal member having a dielectric oxide film and a conductive underlying layer formed on the member in this order, and a conductive polymer film formed on the layer. The conductive polymer film is formed by electrolytic polymerization of a polymerizable monomer contained in an aqueous solution containing a support electrolyte and a phosphate. By the presence of the phosphate in the aqueous solution, phosphate ions dissociated from the phosphate are adsorbed on the dielectric film during the course of the electrolytic polymerization. Thus, the humidity resistance of the dielectric oxide film is improved, resulting in improvements in the capacitance and loss of the capacitor under high temperature and high humidity conditions. A fabrication method of the capacitor is also described.
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