公开(公告)号：US11945923B2

公开(公告)日：2024-04-02

申请号：US17427530

申请日：2020-01-29

申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

发明人： Daisuke Kubo ,  Hiroyuki Arima ,  Tomoyuki Tashiro ,  Kazuhiro Takatani ,  Kenta Chashiro ,  Shumpei Matsushita

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

CPC分类号： C08J5/18 ,  C08J5/045 ,  C08J5/046 ,  H01G9/0032 ,  H01G9/02 ,  C08J2365/00 ,  C08J2401/02 ,  C08J2433/26 ,  C08J2467/02 ,  C08J2477/00

摘要： 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：US11081286B2

公开(公告)日：2021-08-03

申请号：US16562033

申请日：2019-09-05

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Shumpei Matsushita ,  Tomoyuki Tashiro ,  Takayuki Matsumoto ,  Tatsuji Aoyama

IPC分类号： H01G9/02 ,  H01G9/028 ,  H01G9/00 ,  H01G9/048 ,  H01G9/15

摘要： A method for manufacturing an electrolytic capacitor includes a first step, a second step, and a third step. In the first step, a capacitor element is formed. The capacitor element includes an anode body, a cathode body, and a separator. The anode body includes a dielectric layer formed on a surface of the anode body. And the separator is disposed between the anode body and the cathode body. In the second step, the capacitor element is impregnated with a treatment solution containing an acid component and a base component. In the third step, the capacitor element is, after the second step, impregnated with a conductive polymer dispersion in a state that a part of the treatment solution remains in the capacitor element. The conductive polymer dispersion is obtained by dispersing, in a solvent, conductive polymer particles each including polyanion. A pH of the treatment solution is higher than a pH of the conductive polymer dispersion.

公开(公告)号：US10522297B2

公开(公告)日：2019-12-31

申请号：US15852315

申请日：2017-12-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Daisuke Kubo ,  Masayuki Takahashi ,  Yukihiro Shimasaki ,  Tomoyuki Tashiro ,  Tatsuji Aoyama

IPC分类号： H01G9/02 ,  H01G9/028 ,  H01G9/035 ,  H01G9/15

摘要： A power storage device has a power storage element and an electrolytic solution. The power storage element includes an anode body, a cathode body opposed to the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator base material and a conductive polymer deposited on the separator base material. The power storage element is impregnated with the electrolytic solution. The separator has a first surface layer, which includes a first surface opposed to the anode body, and a second surface layer, which includes a second surface opposed to the cathode body. An amount of the conductive polymer deposited in a first separator half body, which is a part from a center of the separator to the first surface, is greater than an amount of the conductive polymer deposited in a second separator half body, which is a part from the center of the separator to the second surface.