公开(公告)号：US20240191046A1

公开(公告)日：2024-06-13

申请号：US18583599

申请日：2024-02-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke KUBO ,  Hiroyuki ARIMA ,  Tomoyuki TASHIRO ,  Kazuhiro TAKATANI ,  Kenta CHASHIRO ,  Shumpei MATSUSHITA

IPC: C08J5/18 ,  C08J5/04 ,  H01G9/00 ,  H01G9/02

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.

公开(公告)号：US20220162404A1

公开(公告)日：2022-05-26

申请号：US17427530

申请日：2020-01-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke KUBO ,  Hiroyuki ARIMA ,  Tomoyuki TASHIRO ,  Kazuhiro TAKATANI ,  Kenta CHASHIRO ,  Shumpei MATSUSHITA

IPC: C08J5/18 ,  H01G9/00 ,  H01G9/02 ,  C08J5/04

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.

公开(公告)号：US20220102082A1

公开(公告)日：2022-03-31

申请号：US17427534

申请日：2020-01-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke KUBO ,  Shumpei MATSUSHITA ,  Kenta CHASHIRO ,  Hiroyuki ARIMA

IPC: H01G9/035 ,  H01G9/055 ,  H01G9/00 ,  H01G9/145

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.