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公开(公告)号：US10767003B2
公开(公告)日：2020-09-08
申请号：US15535920
申请日：2015-11-20
发明人： Arnulf Scheel , Katrin Asteman , Matthias Intelmann , Udo Merker
摘要： The present invention relates to a process for producing a liquid composition comprising a functionalized π-conjugated polythiophenes, comprising the process steps of i) providing a liquid phase comprising a) thiophene monomers of the general formula (I) wherein X,Y are identical or different and are O, S, or NR1, wherein R1 is hydrogen or an aliphatic or aromatic residue having 1 to 18 carbon atoms; A is organic residue carrying an anionic functional group; b) an oxidizing agent; and c) a solvent; ii) oxidatively polymerizing the thiophene monomers of the general formula (I) to obtain a liquid composition comprising functionalized π-conjugated polythiophenes; wherein (α1) the pH of the liquid phase provided in process step i) is adjusted to a value below 7.0, wherein the pH is determined at a temperature of 20° C.; and (α2) the chloride content of the liquid phase provided in process step i) is less than 10000 ppm, based on the total weight of the liquid phase. The present invention also relates to the liquid composition obtainable by this process, to a liquid composition comprising a functionalized π-conjugated polythiophene, wherein the com-position is characterized by a certain ratio of mass average molecular weight Mw and the molar average molecular weight Mn of the functionalized π-conjugated polythiophene, to a liquid composition comprising a functionalized π-conjugated polythiophene, wherein the functionalized π-conjugated polythiophene comprises different repeating units in a defined amount, to a process for the preparation of such a liquid composition, to a process for the preparation of a capacitor in which these liquid compositions are used for the formation of the solid electrolyte, to a capacitor obtainable by this process and to the use of the liquid compositions for the preparation of a conductive layer.
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公开(公告)号：US20200279692A1
公开(公告)日：2020-09-03
申请号：US15733097
申请日：2018-12-21
发明人： HITOSHI FUKUI , AI MAKINO , HIROSHI KOJIMA
摘要： A method for manufacturing an electrolytic capacitor includes: preparing an anode body that includes a dielectric layer, and forming a solid electrolyte layer on the dielectric layer. The forming of the solid electrolyte layer includes: forming a first conductive polymer layer on the dielectric layer, applying a first treatment liquid to the first conductive polymer layer, and forming a second conductive polymer layer after the applying of the first treatment liquid. The first conductive polymer layer includes a first conductive polymer. The first treatment liquid contains a first compound and a solvent. The first compound has a skeleton of naphthalene or anthraquinone, and includes at least one SO3-containing group bonded to the skeleton. The at least one SO3-containing group is at least one selected from a group consisting of a sulfonic acid group and a sulfonate group.
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公开(公告)号：US10755868B2
公开(公告)日：2020-08-25
申请号：US16404265
申请日：2019-05-06
发明人： Yasuhiro Tsuda
IPC分类号： H01G9/055 , H01G11/26 , H01G11/52 , H01G9/028 , H01G9/035 , H01G9/04 , H01G11/62 , H01G11/86
摘要： An electrolytic capacitor includes a capacitor element and an electrolyte solution. The capacitor element includes an anode foil, a cathode foil opposite to the anode foil, and a conductive polymer layer disposed between the anode foil and the cathode foil. A dielectric layer is formed on the anode foil. An inorganic layer is formed on the cathode foil. The conductive polymer layer includes a conductive polymer. The inorganic layer has a surface having projections and recesses. The projections form a region where the inorganic layer is in contact with the conductive polymer layer and the recesses form a region where the inorganic layer is not in contact with the conductive polymer layer. A proportion of water in the electrolyte solution ranges from 0.1% by mass to 6.0% by mass, inclusive.
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公开(公告)号：US10692657B2
公开(公告)日：2020-06-23
申请号：US15952235
申请日：2018-04-13
发明人： Yuichiro Tsubaki , Tatsuji Aoyama
摘要： An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, and an electrolyte solution. The capacitor element includes an anode body on a surface of which a dielectric layer is formed. The solid electrolyte layer is provided on the dielectric layer and includes a conductive polymer and a polymer dopant. The electrolyte solution is impregnated into the capacitor element and contains a polyhydric alcohol and a borate ester.
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35.发明授权公开(公告)号：US10685787B2
公开(公告)日：2020-06-16
申请号：US15702655
申请日：2017-09-12
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a conductive polymer layer covering at least a part of the dielectric layer. The conductive polymer layer includes a conductive polymer and a polymer dopant. The polymer dopant includes a copolymer that includes a first monomer unit and a second monomer unit. The first monomer unit has a sulfonate group. Time second monomer unit has a functional group represented by a formula (i); —CO—R1—COOH (where R1 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms, an aromatic group, or a divalent group —OR2—, R2 representing an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic group).
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公开(公告)号：US10679796B2
公开(公告)日：2020-06-09
申请号：US16128399
申请日：2018-09-11
发明人： Masanori Kashihara
摘要： A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body that is a porous sintered body, a dielectric layer disposed on a surface of the porous sintered body, an insulating material disposed on a surface of the dielectric layer, and a solid electrolyte layer disposed on a surface of the insulating material. The capacitor element has at least one corner part. An amount of the insulating material disposed in the at least one corner part of the capacitor element is larger than an amount of the insulating material disposed in a center part of the capacitor element.
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37.发明申请公开(公告)号：US20200152393A1
公开(公告)日：2020-05-14
申请号：US16741105
申请日：2020-01-13
摘要： Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion of the dielectric by applying a first slurry wherein the first slurry comprises a polyanion and a conductive polymer and wherein the polyanion and conductive polymer are in a weight ratio of greater than 3 wherein the conductive polymer and polyanion forms conductive particles with an average particle size of no more than 20 nm.
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38.发明申请公开(公告)号：US20200098526A1
公开(公告)日：2020-03-26
申请号：US16416421
申请日：2019-05-20
发明人： CHIA-YU WU
摘要： A stacked type capacitor of a stacked type capacitor package structure without carbon paste layer includes a metal foil, an oxide layer, a polymer composite layer and a silver paste layer. The oxide layer is formed on the outer surface of the metal foil to entirely enclose the metal foil. The polymer composite layer is formed on the oxide layer to partially enclose the oxide layer. The silver paste layer is directly formed on the polymer composite layer to directly enclose the polymer composite layer. The oxide layer and the polymer composite layer are connected with each other to form a first connection interface between the oxide layer and the polymer composite layer. The polymer composite layer and the silver paste layer are connected with each other without a carbon paste layer to form a second connection interface between the polymer composite layer and the silver paste layer.
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公开(公告)号：US20200075264A1
公开(公告)日：2020-03-05
申请号：US16115021
申请日：2018-08-28
申请人： VISHAY ISRAEL LTD.
发明人： Alex Eidelman , Pavel Vaisman , Yuri Stangrit , Yongjian Qiu
摘要： A hermetically sealed polymer capacitor and a method of forming the same are disclosed. The method preferably includes dispensing an amount of conductive paste inside a case and inserting one or more capacitor elements into the conductive paste. The conductive paste may surround sides of the one or more capacitor elements. Optionally, a bushing may be placed on the one or more capacitor elements. The bushing may have one or more holes that allow one or more positive leads coupled to the one or more capacitor elements to pass through. A cover is preferably welded to the opening of the case. The capacitor assembly is preferably dried to evacuate moisture from inside the case. The one or more positive leads are preferably welded to one or more metal tubes of a glass to metal seal (GTMS) in the cover to seal the capacitor assembly.
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公开(公告)号：US20200043671A1
公开(公告)日：2020-02-06
申请号：US16599190
申请日：2019-10-11
申请人： AVX Corporation
发明人： Ladislav Vilc , Silvie Vilcova , Ivan Horacek
摘要： A capacitor that is capable of exhibiting good properties under humid conditions is provided. The ability to perform under such conditions is due in part to selective control over the particular nature of the solid electrolyte and cathode coating that overlies the solid electrolyte. For example, the solid electrolyte contains pre-polymerized conductive polymer particles, which can help act as a blocking layer for any silver ions migrating through the capacitor. Likewise, the cathode coating also contains conductive metal particles (e.g., silver particles) that are dispersed within a resinous matrix. The resinous matrix includes a polymer that absorbs only a small amount of water, if any, when placed in a humid atmosphere.
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