公开(公告)号：US20250104928A1

公开(公告)日：2025-03-27

申请号：US18822362

申请日：2024-09-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： RYO KOSAKA ,  NAOKI UMAHASHI ,  TAKAHIRO YOSHII ,  DAISUKE KUBO

IPC: H01G9/028 ,  H01G9/00 ,  H01G9/048 ,  H01G9/15

Abstract: An electrolytic capacitor includes at least one capacitor element including: an anode body including a porous part in a surface layer; a dielectric layer covering at least a part of a surface of the anode body; and a solid electrolyte layer covering at least a part of the dielectric layer. The solid electrolyte layer includes, in the anode body, a first portion disposed in a void of the porous part, and a second portion disposed outside a principal surface of the anode body. The second portion includes n or more conductive polymer layers on one principal surface of the anode body. Following relational expressions are satisfied: 18. μm ≤ T ⁢ t ≤ 50. μm 9. μm ≤ Tt / n ≤ 12.5 μm where, n is an integer of 2 or more, and Tt is a thickness of the second portion on one principal surface of the anode body having the dielectric layer.

公开(公告)号：US20250095924A1

公开(公告)日：2025-03-20

申请号：US18967672

申请日：2024-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO YOSHII ,  KEI HIROTA ,  YOSHIHARU KATAOKA

IPC: H01G9/028 ,  H01G9/012 ,  H01G9/15

Abstract: A capacitor element includes an anode body including a first portion including a first end and a second portion including a second end, and a separation part disposed on a part positioned between the first end and the second end of the anode body. The conductive polymer layer includes an inner layer filled in at least a part of the porous part, and an outer layer positioned outside a principal surface of the anode body. The separation part includes an end A and an end B, the end B being positioned closer to the second end than the end A is. A filling proportion in a region C included in a cross section of a portion of the porous part from the end B to 0.05L is more than or equal to 46%, where L represents a length from the end B to an end of the cathode part at the second end side.

公开(公告)号：US20210115622A1

公开(公告)日：2021-04-22

申请号：US17257680

申请日：2019-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO YOSHII ,  RIKAKO IWASAKI

IPC: D06M11/79 ,  C01B33/16 ,  B32B5/26 ,  B32B7/05 ,  B32B7/027

Abstract: Fiber sheets each including internal pores therein are prepared. A fibrous body including the fiber sheets is formed by stacking the fiber sheets and joining the fiber sheets to each other at joining regions. Silica xerogel is put into the internal pores of each of the fiber sheets of the fibrous body by impregnation. The put silica xerogel is hydrophobized while a space is formed between the fiber sheets in a non-joining region between the joining regions of the fibrous body. This method provides a heat-insulating device resistant to a force in surface directions and having a predetermined thickness.

公开(公告)号：US20230360859A1

公开(公告)日：2023-11-09

申请号：US18245301

申请日：2021-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO YOSHII ,  KEI HIROTA ,  HIROMI OZAWA

IPC: H01G9/028 ,  H01G9/15

CPC classification number: H01G9/028 ,  H01G9/15

Abstract: An anode body, a dielectric layer disposed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer are provided. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer and containing a conjugated polymer. A solid electrolytic capacitor having excellent heat resistance is provided by using a solid electrolytic capacitor element where a full width at half maximum of a first peak is in a range from 35 cm−1 to 80 cm−1 inclusive when the first peak attributed to a CC stretching vibration derived from the conjugated polymer is fitted with a Lorentz function in a Raman spectrum of the solid electrolyte layer.

公开(公告)号：US20240412926A1

公开(公告)日：2024-12-12

申请号：US18699305

申请日：2022-09-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO YOSHII ,  KEI HIROTA ,  HIROMI OZAWA

IPC: H01G9/028 ,  H01G9/10 ,  H01G9/15

Abstract: A solid electrolytic capacitor includes a solid electrolytic capacitor element and an exterior body that seals the solid electrolytic capacitor element. The solid electrolytic capacitor element includes an anode body including a first end part and a second end part that is disposed opposite to the first end part, a dielectric layer covering at least a part of the anode body, and a cathode part covering at least a part of the dielectric layer. The at least a part of the dielectric layer is disposed on a portion of the anode body that is closer to the second end part than to the first end part. The cathode part includes a solid electrolyte layer covering the at least a part of the dielectric layer. A breaking strength of the solid electrolyte layer is 0.55 MPa or more and 45.00 MPa or less.

公开(公告)号：US20240055191A1

公开(公告)日：2024-02-15

申请号：US18258296

申请日：2022-01-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KEI HIROTA ,  TAKAHIRO YOSHII

IPC: H01G9/028 ,  H01G9/15

CPC classification number: H01G9/028 ,  H01G9/15 ,  H01G9/0036

Abstract: A solid electrolytic capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, and a cathode part covering at least a part of the dielectric layer. The cathode part includes a solid electrolyte layer covering the at least the part of the dielectric layer. The solid electrolyte layer includes a conductive polymer component containing a conjugated polymer. An oxygen permeability P1 of the solid electrolyte layer after heating at 230° C. for 5 hours is less than or equal to 1.0 cm3/m2·24 h·atm.