公开(公告)号：US10998137B2

公开(公告)日：2021-05-04

申请号：US16054554

申请日：2018-08-03

Applicant: TOKIN Corporation

Inventor： Yasuhisa Sugawara ,  Masami Ishijima ,  Kenji Araki

IPC: H01G9/07 ,  H01G9/04 ,  H01G9/10 ,  H01G9/00 ,  H01G9/035

Abstract: An electrolytic capacitor according to an aspect of the present disclosure includes a valve metal, a dielectric oxide film layer formed on a surface of the valve metal, a surface treatment agent layer formed on the dielectric oxide film layer, and an electrolyte layer formed on the surface treatment agent layer. The electrolyte layer includes a conductive polymer layer and an ionic liquid. For example, the conductive polymer layer is formed so that the conductive polymer layer is in contact with the surface treatment agent layer, and at least some of voids present in an interface between the conductive polymer layer and the surface treatment agent layer are filled with the ionic liquid.

公开(公告)号：US11908630B2

公开(公告)日：2024-02-20

申请号：US17659620

申请日：2022-04-18

Applicant: TOKIN Corporation

Inventor： Yusuke Hoshina ,  Masami Ishijima ,  Tadamasa Asami ,  Yasuhisa Sugawara

IPC: H01G9/025 ,  H01G9/00

CPC classification number: H01G9/0036 ,  H01G9/025

Abstract: A solid electrolytic capacitor according to an aspect includes an anode body made of a valve metal, a dielectric layer formed on the anode body, a solid electrolyte layer formed on the dielectric layer, and a cathode body layer formed on the solid electrolyte layer. The solid electrolyte layer includes a first layer containing a first conductive polymer doped with a monomolecular dopant, and a second conductive polymer composed of a self-doped-type conductive polymer containing a plurality of side chains containing a functional group, the functional group being able to be doped, and a second layer formed on the first layer and containing a third conductive polymer doped with a polymer dopant; and the first conductive polymer is in contact with the third conductive polymer (the second layer).

公开(公告)号：US12278060B2

公开(公告)日：2025-04-15

申请号：US17812325

申请日：2022-07-13

Applicant: TOKIN Corporation

Inventor： Yasuhisa Sugawara ,  Masami Ishijima ,  Tadamasa Asami ,  Yusuke Hoshina

IPC: H01G9/025 ,  H01G9/00 ,  H01G9/15

Abstract: A solid electrolytic capacitor according to one aspect of the present disclosure includes: an anode body made of a valve metal; a dielectric layer formed on the anode body; and a solid electrolyte layer formed on the dielectric layer. The solid electrolyte layer includes: a first conductive polymer layer formed on the dielectric layer and heterogeneously doped with a monomolecular dopant; a block layer formed on the first conductive polymer layer; and a second conductive polymer layer formed on the block layer and composed of a self-doped-type conductive polymer containing a plurality of side chains containing a functional group that can be doped. The block layer blocks a migration of the self-doped-type conductive polymer from the second conductive polymer layer into the first conductive polymer layer and/or a migration of the self-doped-type conductive polymer from the second conductive polymer layer into pores of the porous anode body.

公开(公告)号：US11791105B2

公开(公告)日：2023-10-17

申请号：US17719487

申请日：2022-04-13

Applicant: TOKIN CORPORATION

Inventor： Hitoshi Takata ,  Masami Ishijima ,  Satoshi Abe ,  Kazuaki Saito

IPC: H01G9/012 ,  H01G9/15 ,  H01G9/10

CPC classification number: H01G9/012 ,  H01G9/10 ,  H01G9/15

Abstract: A solid electrolytic capacitor includes a capacitor element, an outer anode terminal, an outer cathode terminal and an outer mold. The capacitor element has an anode lead wire, an anode body and a cathode layer. The capacitor element has an upper surface and a lower surface in an up-down direction. The outer cathode terminal and the outer anode terminal are positioned away from each other in a predetermined direction perpendicular to the up-down direction. The outer cathode terminal has an upper portion, a lower portion and a connecting portion. One of the upper portion and the lower portion is longer than a remaining one of the upper portion and the lower portion in the predetermined direction. The outer mold covers the capacitor element so that each of the outer anode terminal and the outer cathode terminal is partially exposed to an outside of the solid electrolytic capacitor.

公开(公告)号：US09105399B2

公开(公告)日：2015-08-11

申请号：US14083510

申请日：2013-11-19

Applicant: NEC TOKIN CORPORATION

Inventor： Masanori Takahashi ,  Satoshi Iwai ,  Masami Ishijima

IPC: H01G9/00 ,  H01G9/025 ,  H01G9/028 ,  H01G9/15

CPC classification number: H01G9/0036 ,  H01G9/025 ,  H01G9/028 ,  H01G9/15 ,  Y10T29/417

Abstract: A solid electrolytic capacitor according to an aspect of the present invention includes an anode conductor including a porous valve metal body, a dielectric layer formed on a surface of the anode conductor, and a solid electrolyte layer including a conductive polymer layer formed on a surface of the dielectric layer, in which the solid electrolyte layer includes a first solid electrolyte layer formed on a surface of the dielectric layer, and a second solid electrolyte layer formed on a surface of the first solid electrolyte layer, and at least one continuous or discontinuous layer containing an amine compound exists between the first and second solid electrolyte layers, and inside the second solid electrolyte layer.

Abstract translation: 根据本发明的一个方面的固体电解电容器包括：阳极导体，其包括多孔阀金属体，形成在阳极导体的表面上的电介质层和固体电解质层，所述固体电解质层包括形成在 固体电解质层包括形成在电介质层的表面上的第一固体电解质层的电介质层和形成在第一固体电解质层的表面上的第二固体电解质层，以及至少一个连续或不连续层 含有胺化合物存在于第一和第二固体电解质层之间以及第二固体电解质层内部。