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公开(公告)号：US20230109930A1
公开(公告)日：2023-04-13
申请号：US18045654
申请日：2022-10-11
发明人： Yuichiro Tsubaki , Tatsuji Aoyama
摘要： An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains an acid component and a base component. A mass of the acid component in the solute is greater than a mass of the base component in the solute. The acid component contains a first aromatic compound having a hydroxyl group.
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公开(公告)号：US11508530B2
公开(公告)日：2022-11-22
申请号：US17155644
申请日：2021-01-22
发明人： Yuichiro Tsubaki , Tatsuji Aoyama
摘要： An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains an acid component and a base component. A mass of the acid component in the solute is greater than a mass of the base component in the solute. The acid component contains a first aromatic compound having a hydroxyl group.
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公开(公告)号：US20220262574A1
公开(公告)日：2022-08-18
申请号：US17612344
申请日：2020-06-18
申请人： RUBYCON CORPORATION
摘要： A solid electrolytic capacitor (1) includes an anode foil (2a) having formed thereon an oxide film, a cathode foil (2c), and a separator (2d), and is equipped with a solid electrolyte (20) formed of an electroconductive polymer compound in a fine particle form, and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20), the solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and a number of hydroxy groups of 4 or more as a first water-soluble compound (2f1), the water-soluble compound solution (30) contains one kind or multiple kinds of a glycol compound in a liquid form as a second water-soluble compound (2f2), and the second water-soluble compound (2f2) has an average molecular weight of less than 400.
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公开(公告)号：US11328874B2
公开(公告)日：2022-05-10
申请号：US16874774
申请日：2020-05-15
申请人： AVX Corporation
发明人： Lotfi Djebara
摘要： A solid electrolytic capacitor comprising a capacitor element is provided. The capacitor element comprises a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and that includes conductive polymer particles. The anode body has an exterior surface that spans in a longitudinal direction to define a length of the anode body, wherein at least one channel is recessed into the exterior surface of the anode body. The channel is defined by opposing sidewalls that intersect at a base, wherein the channel has a width of from about 0.4 millimeters to about 3 millimeters and a depth of from about 50 micrometers to about 350 micrometers.
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公开(公告)号：US20220127414A1
公开(公告)日：2022-04-28
申请号：US17201216
申请日：2021-03-15
发明人： CHIEH LIN
摘要： A method for manufacturing an electrolytic capacitor is provided. A conductive polymer solution is applied onto a porous main body. The porous main body includes a porous electrode body having an electrode material and a dielectric layer covering an outer surface of the electrode material. The conductive polymer solution contains conductive polymer particles whose average particle size ranges from 0.5 nm to 50 nm. A solid electrolyte is formed to completely or partially cover a surface of the dielectric layer. A material of the conductive polymer particles includes at least one of polythiophene having at least one sulfonic acid group and polyselenophene having at least one sulfonic acid group. An electrical conductivity of a dry membrane formed from the conductive polymer particles is higher than 25 S/cm. An amount of metal cations in the conductive polymer solution is less than 500 mg/kg.
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公开(公告)号：US11295900B2
公开(公告)日：2022-04-05
申请号：US16726376
申请日：2019-12-24
摘要： An electrolytic capacitor that includes a resin molded body having opposed first and second end surfaces, the body including a stack that includes a capacitor element with an anode exposed at the first end surface, a dielectric layer on a surface of the anode, and a cathode opposite to the anode and exposed at the second end surface, and a sealing resin that encloses the stack; a first external electrode on the first end surface of the resin molded body and electrically connected to the anode; and a second external electrode on a second end surface of the resin molded body and electrically connected to the cathode, wherein the first external electrode and the second external electrode each include a resin electrode layer containing a conductive component and a resin component.
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公开(公告)号：US20220102081A1
公开(公告)日：2022-03-31
申请号：US17420703
申请日：2020-01-23
发明人： KEI HIROTA , KYOHEI IWAOKA , HITOSHI FUKUI , DAISUKE USA , KOUTA MUNEYASU , HIROKI NAGAYAMA
摘要： A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
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公开(公告)号：US11257628B2
公开(公告)日：2022-02-22
申请号：US16025195
申请日：2018-07-02
申请人： AVX Corporation
发明人： Jan Petrzilek , Lotfi Djebara , Ladislav Vilc
摘要： A capacitor that comprises a solid electrolytic capacitor element, a casing material that encapsulates the capacitor element, an anode termination, and a cathode termination is provided. A nanocoating is disposed on at least a portion of the capacitor element, casing material, anode termination, cathode termination, or a combination thereof. The nanocoating has an average thickness of about 2,000 nanometers or less and contains a vapor-deposited polymer.
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公开(公告)号：US11227725B2
公开(公告)日：2022-01-18
申请号：US16710694
申请日：2019-12-11
发明人： Takahiro Kumakawa , Renki Yamazaki , Shinya Suzuki
摘要： A solid electrolytic capacitor having high reliability while maintaining suitable electrical characteristics, and a method for producing the same. The solid electrolytic capacitor includes a plurality of capacitor elements, an exterior body covering the plurality of capacitor elements, a contact layer metallic bonded to an anode terminal portion that is an end portion of the anode body, an anode-side electrode layer provided so as to cover the contact layer, a cathode-side electrode layer electrically connected to the cathode body, an anode-side external electrode provided on the surface of the anode-side electrode layer, and a cathode-side external electrode provided on the surface of the cathode-side electrode layer.
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公开(公告)号：US11183342B2
公开(公告)日：2021-11-23
申请号：US16536735
申请日：2019-08-09
申请人： AVX Corporation
发明人： Miloslav Uher , Kiyofumi Aoki , Pavel Kucharczyk
摘要： A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer having repeating units derived from an aniline monomer having the following general formula (I):
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