公开(公告)号：US20230207224A1

公开(公告)日：2023-06-29

申请号：US18171398

申请日：2023-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NORIHIKO OGATA ,  YUMA YANO ,  KAZUHIDE GOTOU ,  YUKIYASU SUGIHARA ,  MASAYUKI HOGIRI

IPC: H01G9/15 ,  H01G9/028 ,  H01G9/052

CPC classification number: H01G9/15 ,  H01G9/028 ,  H01G9/0525

Abstract: An electrolytic capacitor includes a capacitor element that includes a porous anode body including an anode base body and a dielectric layer formed on a surface of the anode base body, and a solid electrolyte layer that covers at least a part of the dielectric layer. The anode body includes a plurality of principal surfaces, and at least a part of a surface layer of at least one principal surface of the plurality of principal surfaces of the anode body is denser than an inside of the anode body.

公开(公告)号：US20220310328A1

公开(公告)日：2022-09-29

申请号：US17651413

申请日：2022-02-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUKIYASU SUGIHARA ,  NORIHIKO OGATA ,  KAZUHIDE GOTOU ,  YUMA YANO ,  YUKI UEDA ,  MASAYUKI HOGIRI

IPC: H01G9/048 ,  H01G9/042

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a dielectric layer disposed on a surface of the anode body, a cathode layer covering at least a part of the dielectric layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode lead. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.

公开(公告)号：US20220238282A1

公开(公告)日：2022-07-28

申请号：US17562098

申请日：2021-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUKIYASU SUGIHARA ,  NORIHIKO OGATA ,  KAZUHIDE GOTOU ,  YUMA YANO ,  YUKI UEDA ,  TAKESHI MINAMIURA ,  MASAYUKI HOGIRI

IPC: H01G9/052 ,  H01G9/00

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 μm in pore diameter, and a second peak in a range of more than 0.5 μm in pore diameter.