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公开(公告)号：US12112900B2
公开(公告)日：2024-10-08
申请号：US17811265
申请日：2022-07-07
摘要： An electrolytic capacitor includes a capacitor element, a liquid component, a case housing the capacitor element and the liquid component, and a sealing member sealing the case. the capacitor element includes a porous sintered body including a dielectric layer, a cathode foil facing at least a part of the porous sintered body, and a conductive polymer covering at least a part of a surface of the dielectric layer. The conductive polymer is in contact with the cathode foil. And a void in the capacitor element is impregnated with the liquid component.
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公开(公告)号：US12112898B2
公开(公告)日：2024-10-08
申请号：US17852670
申请日：2022-06-29
发明人： Yasuhiro Tamatani
摘要： An electrolytic capacitor that includes a cuboidal resin molding including a first end surface, a second end surface, a laminate of capacitor elements each including an anode and a cathode opposite to the anode, and a sealing resin sealing the laminate; a first external electrode on the first end surface of the resin molding and electrically connected to the anode exposed at the first end surface; and a second external electrode on the second end surface of the resin molding and electrically connected to the cathode exposed at the second end surface, wherein the first external electrode includes, sequentially from a side thereof adjacent to the first end surface of the resin molding, a first thermal spraying electrode layer and a second thermal spraying electrode layer in contact with the first thermal spraying electrode layer and having a higher porosity than the first thermal spraying electrode layer.
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公开(公告)号：US12100561B2
公开(公告)日：2024-09-24
申请号：US17481718
申请日：2021-09-22
申请人： AVX Corporation
发明人： Masayuki Wakatsuki , Yusuke Sasaki , Shinpei Etou
CPC分类号： H01G9/15 , H01G9/0003 , H01G9/0036 , H01G9/028 , H01G9/032 , H01G9/0525 , H01G9/07 , H01G9/10 , H01G2009/05
摘要： A capacitor that comprises a capacitor element is provided. The capacitor element comprises a deoxidized and sintered anode body that is formed from a powder having a specific charge of about 35,000 μF*V/g or more. Further, a dielectric overlies the anode body and a solid electrolyte overlies the dielectric. The capacitor also exhibits a normalized aged leakage current of about 0.1% or less.
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公开(公告)号：US12057275B2
公开(公告)日：2024-08-06
申请号：US17992882
申请日：2022-11-22
申请人： Yu-Peng Chung , Chia-Wei Li , Wen Cheng Hsu , En-Ming Chen , Che-Chih Tsao
发明人： Yu-Peng Chung , Chia-Wei Li , Wen Cheng Hsu , En-Ming Chen , Che-Chih Tsao
CPC分类号： H01G9/012 , H01G9/0029 , H01G9/0425 , H01G9/08 , H01G9/151
摘要： This invention describes a packaging structure for roll-type (wound-type) aluminum conductive polymer capacitor element. Two protective substrates are applied to sandwich a roll-type capacitor element in between with an insulating material surrounding the capacitor element also in between the protective substrates. The protective substrates comprise electrically separated anodic conductive pad and cathodic conductive pad on their surfaces and through holes that pass through the conductive pads. The capacitor element is oriented with its axis perpendicular to the two substrates. The anodic and cathodic leads of the capacitor element pass through the through holes. An anodic external terminal is plated over the anodic conductive pad and a cathodic external terminal is plated over the cathodic conductive pad so that the anodic external terminal is electrically connected to the anodic lead and the cathodic external terminal is electrically connected to the cathodic lead.
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公开(公告)号：US12027323B2
公开(公告)日：2024-07-02
申请号：US17802019
申请日：2020-02-28
发明人： Takashi Takezawa , Masakazu Hosogi
摘要： A capacitor includes a capacitor element that holds a predetermined solution between an anode foil and a cathode foil wound up with a separator in between, a body case that is formed in the shape of a bottomed tube closed at one end with a wall and open at the other end to have an opening, a liquid supply sheet that is arranged between the inner face of the case and the outer face of the element, and a sealing member that seals the opening. The solution has a sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sheet has an absorption portion that makes contact with the separator to absorb the solution and a supply portion that makes contact with the sealing member to supply it with the solution.
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公开(公告)号：US12009158B2
公开(公告)日：2024-06-11
申请号：US17786082
申请日：2020-12-15
发明人： Kazuya Koseki , Kazuhiro Nagahara , Kazuma Okura
CPC分类号： H01G9/15 , H01G9/0029 , H01G9/0425 , H01G9/055
摘要： Provided is a solid electrolytic capacitor having large capacitance, low ESR, and superior high-frequency characteristics and high-temperature endurance. The solid electrolytic capacitor is provided with: a cathode 10 having a cathode substrate 11 made of a valve metal and having an etching pit 11a; an oxide layer 12 made of an oxide of the valve metal provided on a surface of the cathode substrate 11, and a carbon coating layer 13 provided on a surface of the oxide layer 12, the carbon coating layer 13 including carbon particles and having an entry area 13a that enters the etching pit 11a and a penetration area 13b that penetrates through the oxide layer 12 and conducts with the cathode substrate 11; an anode having an anode substrate made of a valve metal, and a dielectric layer provided on a surface of the anode substrate and made of an oxide of the valve metal that composes the anode substrate; and a solid electrolyte layer including a conductive polymer provided between the carbon coating layer of the cathode and the dielectric layer of the anode.
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公开(公告)号：US20240177939A1
公开(公告)日：2024-05-30
申请号：US18430761
申请日：2024-02-02
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 coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer containing repeating thiophene units of a certain formula.
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公开(公告)号：US20240161985A1
公开(公告)日：2024-05-16
申请号：US18549498
申请日：2022-03-04
发明人： Shinji KONDOU , Kazuya YAMASAKI , Takashi KAWASAKI , Koji YOKOYAMA , Hitoshi ISHIMOTO , Yoshihisa NAGASAKI , Yuji MIYACHI
CPC分类号： H01G9/028 , H01G9/0036 , H01G9/048 , H01G9/15
摘要： An electrolytic capacitor includes an anode body, a dielectric layer that covers the anode body, a first solid electrolyte layer that covers the dielectric layer, and a second solid electrolyte layer that covers the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer that includes polypyrrole as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer that includes polythiophene as a basic skeleton. The second solid electrolyte layer has a thickness of 1 μm or more.
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公开(公告)号：US11984271B2
公开(公告)日：2024-05-14
申请号：US17651413
申请日：2022-02-16
发明人： Yukiyasu Sugihara , Norihiko Ogata , Kazuhide Gotou , Yuma Yano , Yuki Ueda , Masayuki Hogiri
CPC分类号： H01G9/048 , H01G9/0425 , H01G9/15
摘要： An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a cathode layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode layer. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.
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公开(公告)号：US20240145178A1
公开(公告)日：2024-05-02
申请号：US18408702
申请日：2024-01-10
申请人： RUBYCON CORPORATION
CPC分类号： H01G9/035 , H01G9/0036 , H01G9/028 , H01G9/151
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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