公开(公告)号：US20250104926A1

公开(公告)日：2025-03-27

申请号：US18832334

申请日：2023-01-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuji AOYAMA ,  Yukiya SHIMOYAMA ,  Yasuhiro NISHIMURA ,  Honami SERIZAWA

IPC: H01G9/00 ,  H01G9/02 ,  H01G9/035 ,  H01G9/07 ,  H01G9/145

Abstract: A disclosed manufacturing method is a method for manufacturing an electrolytic capacitor that includes an anode foil having a dielectric layer formed on a surface thereof, a cathode foil, and a separator. The manufacturing method includes, in the following order: a polymer layer formation step of forming a conductive polymer layer containing a conductive polymer component on the separator and at least one surface selected from a surface of the dielectric layer and a surface of the cathode foil; a stacked body formation step of forming a stacked body by stacking the anode foil, the cathode foil, and the separator; a liquid application step of impregnating the conductive polymer layer included in the stacked body with a liquid that includes water and an organic compound that does not boil at 100° C. under 1 atm; a removal step of removing a portion of the liquid with which the conductive polymer layer has been impregnated, such that the organic compound remains in the conductive polymer layer; and an impregnation step of impregnating the stacked body subjected to the removal step with a liquid component.

公开(公告)号：US20250062077A1

公开(公告)日：2025-02-20

申请号：US18721554

申请日：2022-12-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhiro NISHIMURA ,  Honami SERIZAWA ,  Miyoko MASUDA ,  Tatsuji AOYAMA

IPC: H01G9/00 ,  H01G9/15

Abstract: A disclosed manufacturing method includes a laminated body formation step of forming a laminated body by laminating an anode foil, a cathode foil, and a separator such that the separator is arranged between the anode foil and the cathode foil, and a polymer layer formation step of impregnating the laminated body with a dispersion liquid containing a conductive polymer and a dispersion medium, and then evaporating at least a portion of the dispersion medium of the dispersion liquid in the laminated body to form a conductive polymer layer containing the conductive polymer in the laminated body. The laminated body formation step further includes a step of surrounding an outer periphery of the laminated body with a binding member. The separator has a protrusion part that protrudes from the binding member. In the polymer layer formation step, the laminated body is impregnated with the dispersion liquid from the protrusion part.