公开(公告)号：US20220359125A1

公开(公告)日：2022-11-10

申请号：US17815259

申请日：2022-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUICHIRO TSUBAKI ,  KAZUHIRO TAKATANI ,  MIYOKO MASUDA ,  KENTA CHASHIRO ,  SHUMPEI MATSUSHITA

IPC: H01G9/008 ,  H01G9/10 ,  H01G9/055 ,  H01G13/04

Abstract: A method for manufacturing an electrolytic capacitor includes a first connection step, a second connection step, a first insertion step, a housing step, and a sealing step. In the first connection step, a first internal lead having a foil shape is connected to a first electrode foil. In the second connection step, after the first connection step, a first external lead having a rod shape is connected to the first internal lead to obtain the first electrode. In the first insertion step, the first external lead is inserted into an insertion port of a sealing plate after the second connection step. In the housing step, the first electrode is housed in a container after the first insertion step. In the sealing step, an opening of the container is closed with the sealing plate after the housing step.

公开(公告)号：US20220093342A1

公开(公告)日：2022-03-24

申请号：US17540762

申请日：2021-12-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUMPEI MATSUSHITA ,  TOMOYUKI TASHIRO ,  KENTA CHASHIRO

IPC: H01G9/048 ,  H01G9/08 ,  H01G9/145 ,  H01G9/00

Abstract: An electrolytic capacitor includes a capacitor element, a first current collector, and a case. The capacitor element includes a wound body in which a first electrode foil and a second electrode foil are wound. The first electrode foil and the second electrode foil face each other. The first current collector is connected to the first electrode foil. The case houses the capacitor element and the first current collector. The first electrode foil includes a first facing portion that faces the second electrode foil and a first non-facing portion that does not face the second electrode foil. The first non-facing portion is located at a first end portion in a winding axis of the wound body. The first current collector is disposed in a vicinity of the first end portion of the wound body to be connected to the first non-facing portion of the first electrode foil.