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公开(公告)号：US12176157B2
公开(公告)日：2024-12-24
申请号：US17427534
申请日：2020-01-29
Inventor： Daisuke Kubo , Shumpei Matsushita , Kenta Chashiro , Hiroyuki Arima
Abstract: A method for producing an electrolytic capacitor, the method including steps of: preparing an electrode foil; preparing a first conductive polymer dispersion containing a first conductive polymer component and a first dispersion medium; forming a first conductive polymer layer containing the first conductive polymer component, by applying the first conductive polymer dispersion to a surface of the electrode foil by a coating method, and then at least partially removing the first dispersion medium; and fabricating a capacitor element, using the electrode foil having the first conductive polymer layer.
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公开(公告)号：US12073999B2
公开(公告)日：2024-08-27
申请号：US17813606
申请日：2022-07-20
Inventor： Hiroyuki Arima , Takehiro Kobayashi
CPC classification number: H01G9/025 , H01G9/0036 , H01G9/035
Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body and an electrolyte layer. The anode body has a dielectric layer on a surface of the anode body. The electrolyte layer is disposed to be adjacent to the dielectric layer. The electrolyte layer contains a first conductive polymer and a non-aqueous solvent. The first conductive polymer is a self-doped conductive polymer.
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公开(公告)号：US12136525B2
公开(公告)日：2024-11-05
申请号：US17795802
申请日：2021-01-29
Inventor： Hiroyuki Arima , Takehiro Kobayashi
Abstract: Disclosed is an electrolytic capacitor including a capacitor element. The capacitor element includes an anode body having a dielectric layer formed at a surface of the anode body, and an electrolyte layer disposed adjacent to the dielectric layer. The electrolyte layer contains a conductive polymer doped with a dopant, conductive particles, and a non-aqueous solvent.
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公开(公告)号：US11945923B2
公开(公告)日：2024-04-02
申请号：US17427530
申请日：2020-01-29
Inventor： Daisuke Kubo , Hiroyuki Arima , Tomoyuki Tashiro , Kazuhiro Takatani , Kenta Chashiro , Shumpei Matsushita
CPC classification number: C08J5/18 , C08J5/045 , C08J5/046 , H01G9/0032 , H01G9/02 , C08J2365/00 , C08J2401/02 , C08J2433/26 , C08J2467/02 , C08J2477/00
Abstract: Disclosed is a method for producing an electrolytic capacitor, the method including the steps of preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cm3 or more and less than 0.45 g/cm3.
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