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公开(公告)号：US20210005395A1
公开(公告)日：2021-01-07
申请号：US16502900
申请日：2019-07-03
申请人： Pacesetter, Inc.
摘要： A chemical etch is performed on a sheet of material. An electrochemical etch is performed on the sheet of material after the chemical etch is performed on the sheet of material. A capacitor is fabricated such that an electrode included in the capacitor includes material from the sheet of material after the electrochemical etch was performed on the sheet of material. In some instances, the chemical etch included at least partially immersing the sheet of material in an etch bath that includes molybdenum. Additionally or alternately, the chemical etch can be performed for a period of time less than 60 s.
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公开(公告)号：US20200251287A1
公开(公告)日：2020-08-06
申请号：US16648476
申请日：2018-09-28
申请人： TDK Electronics AG
发明人： Laszlo Dobai
摘要： An electrolytic capacitor is disclosed. In an embodiment an electrolytic capacitor includes an anode foil, a cathode foil, a working electrolyte arranged between the anode foil and the cathode foil, a polymer layer arranged on the anode foil, wherein the polymer layer comprises PEDOT:PSS and an intermediate electrolyte arranged between the polymer layer and the working electrolyte, wherein the intermediate electrolyte is different from the working electrolyte with respect to its composition.
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公开(公告)号：US20200168406A1
公开(公告)日：2020-05-28
申请号：US16638253
申请日：2018-08-14
发明人： Atsushi Yoshida , Kazuhiro Nagahara
摘要： An object is to suppress generation of molecular hydrogen from atomic hydrogen generated in a capacitor so as to suppress a rise in pressure of the capacitor due to the increased molecular hydrogen. A capacitor (2) includes a capacitor element (6) formed by winding an anode foil (14) and a cathode foil (16), and an outer case (4) storing the capacitor element therein. A hydrogen reaction film (22) reactive with atomic hydrogen generated in the outer case is formed on a surface of the cathode foil.
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公开(公告)号：US10566141B2
公开(公告)日：2020-02-18
申请号：US15542317
申请日：2016-01-05
IPC分类号： H01G9/02 , H01G11/52 , H01M2/16 , H01G9/045 , H01M10/052 , H01M10/05 , H01M10/0525
摘要： Provided is a separator having excellent tearing strength, denseness, and impedance performance, and an aluminum electrolytic capacitor provided with the separator. The present invention constitutes a separator including beatable regenerated cellulose fibers, the separator having a CSF value X[ml] and tear index Y[mN·m2/g] within the ranges satisfying the following formulae. The present invention also constitutes an aluminum electrolytic capacitor in which at least one of the separators is used, the capacitor feeing formed by interposing the separator between an anode and a cathode. 0≤X≤300 Formula 1 15≤Y≤100 Formula 2 Y≥0.175X−2.5 Formula 3
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公开(公告)号：US20200013556A1
公开(公告)日：2020-01-09
申请号：US16483405
申请日：2017-12-07
发明人： Yuta SHIMIZU , Shuhei ENOKI , Masahiko KATANO , Toshifumi TAIRA , Kazuya FUJIMOTO , Shinya SONE
摘要： A method for producing an electrode for an aluminum electrolytic capacitor is provided that can reduce defects in a chemical formation film formed at a chemical formation voltage of 500 V or higher.For producing the electrode for an aluminum electrolytic capacitor, an aluminum electrode is brought into contact with pure water having a temperature of 70° C. or higher to form a hydrated film having a suitable film thickness on the aluminum electrode at a hydration step, and then chemical formation is performed thereon at a chemical formation voltage of 500 V or higher in a chemical formation solution having a temperature of 40° C. or higher at a chemical formation step. At the chemical formation step, when the relative velocity of the chemical formation solution to the aluminum electrode is represented by a three-dimensional velocity vector B−A and the absolute value of the velocity vector B−A is represented by |B−A|, the absolute value |B−A| of the velocity vector satisfies the following conditional formula. 3 cm/s≤|B−A|≤100 cm/s
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公开(公告)号：US20190131078A1
公开(公告)日：2019-05-02
申请号：US16094909
申请日：2017-04-11
申请人： NICHICON CORPORATION
摘要： An aluminum electrolytic capacitor includes: an exterior case of a bottomed cylindrical shape for accommodating a capacitor element in which an anode foil and a cathode foil are wound in an overlapping manner with a separator interposed therebetween; and an elastic sealing member for sealing an opening of the exterior case, wherein the exterior case is formed with, on an outer circumferential surface, a plurality of tapered concave portions whose depth in the radial direction becomes shallow from the bottomed cylindrical bottom toward the opening side, whereby a tapered raised portion, which is raised toward the center side in the radial direction, is formed on an inner circumferential surface located on the back surface of the concave portion, and the capacitor element is abutted and supported by the raised portion.
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公开(公告)号：US20180350526A1
公开(公告)日：2018-12-06
申请号：US15780447
申请日：2016-09-20
发明人： Yuta SHIMIZU , Yuya YOSHIDA , Masahiko KATANO , Shinya SONE , Masashi MEHATA , Toshifumi TAIRA
摘要： An aluminum electrode in which a porous layer made of a sintered layer of aluminum powder having an average particle diameter of 1 μm to 10 μm is laminated in a thickness of 150 μm to 3000 μm on a surface of an aluminum core material is produced by chemical formation to produce an anode for an electrolytic capacitor. In this process, an organic acid immersion step of immersing the aluminum electrode in an organic acid aqueous solution containing dodecanoic acid, benzoic acid, propanedioic acid, butanedioic acid, (E)-2-butenedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid, (E)-1-propene-1,2,3-tricarboxylic acid, or the like is carried out after a pure water boiling step and before a chemical formation step. In the chemical formation step, a phosphoric acid immersion step of immersing the aluminum electrode in an aqueous solution containing phosphate ions is carried out one or more times in the course of raising a film withstand voltage to a chemical formation voltage.
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28.发明授权公开(公告)号：US10079113B2
公开(公告)日：2018-09-18
申请号：US15381526
申请日：2016-12-16
CPC分类号： H01G9/012 , H01G9/0032 , H01G9/042 , H01G9/045 , H01G9/048 , H01G9/052 , H01G9/07 , H01G9/08 , H01G9/10 , H01G9/15
摘要： An improved capacitor is provided wherein the capacitor has improved volumetric efficiency. The capacitor comprises a capacitive element comprising an anode, a dielectric on the anode and a cathode on the dielectric. An encapsulant at least partially encases the capacitive element wherein the encapsulant comprises at least one membrane between the capacitive element and an external surface of the encapsulant.
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公开(公告)号：US10079111B2
公开(公告)日：2018-09-18
申请号：US14654722
申请日：2014-01-15
发明人： Toshifumi Taira , Kenji Muramatsu
CPC分类号： H01G9/0029 , C25F3/04 , H01B1/02 , H01G9/045 , H01G9/055
摘要： The present invention provides a production method that enables easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance, and that enables, in particular, easy production of an electrode material for aluminum electrolytic capacitor having a high capacitance regardless of the average particle diameter (D50) of aluminum powder to be used. Specifically, the present invention provides a method for producing an electrode material for aluminum electrolytic capacitor, comprising the steps of: (1) a first step of forming a film of a paste composition containing powder of at least one of aluminum and an aluminum alloy, a binder resin, and a solvent on at least one surface of a substrate, (2) a second step of sintering the film, and (3) a third step of applying an etching treatment on the sintered film.
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公开(公告)号：US09969030B2
公开(公告)日：2018-05-15
申请号：US15153369
申请日：2016-05-12
申请人： Pacesetter, Inc.
IPC分类号： B23K26/362 , H01G9/08 , H01G9/048 , H01G9/045 , H01G9/042 , H01G9/008 , H01G9/02 , H01G9/00 , B23K26/0622 , B23K26/08 , B23K103/10
CPC分类号： B23K26/362 , B23K26/0624 , B23K26/064 , B23K26/0676 , B23K26/083 , B23K26/0838 , B23K26/0846 , B23K26/0876 , B23K26/382 , B23K26/40 , B23K2101/16 , B23K2101/18 , B23K2101/38 , B23K2103/10 , H01G9/0029 , H01G9/008 , H01G9/02 , H01G9/042 , H01G9/045 , H01G9/048 , H01G9/08
摘要： A capacitor and methods of processing an anode metal foil are presented. The capacitor includes a housing, one or more anodes disposed within the housing, one or more cathodes disposed within the housing, one or more separators disposed between an adjacent anode and cathode, and an electrolyte disposed around the one or more anodes, one or more cathodes, and one or more separators within the housing. The one or more anodes each include a metal foil that includes a first plurality of tunnels through a thickness of the metal foil in a first ordered arrangement, the first ordered arrangement being a close packed hexagonal array arrangement, and having a first diameter, and a second plurality of tunnels through the thickness of the metal foil having a second ordered arrangement and a second diameter greater than the first diameter.
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