公开(公告)号：US12080489B2

公开(公告)日：2024-09-03

申请号：US17434263

申请日：2019-10-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Mitsuhisa Yoshimura ,  Shosuke Nakano ,  Hiroshi Yoshida ,  Masami Tsubaki ,  Naomi Kurihara ,  Miwa Ogawa

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

CPC classification number: H01G9/055 ,  H01G9/0032 ,  H01G9/145

Abstract: An electrode foil for an electrolytic capacitor including a metal porous portion, and a metal core portion continuous to the metal porous portion. When the metal porous portion is equally divided in three in a thickness direction of the metal porous portion into a first region, a second region, and a third region sequentially from the metal core portion side, the first region has a porosity P1, the second region has a porosity P2, and the third region has a porosity P3, satisfying P1