公开(公告)号：US20230223203A1

公开(公告)日：2023-07-13

申请号：US18001679

申请日：2021-07-02

Applicant: Panasonic Intellectual Property Management Co.,Ltd.

Inventor： HITOSHI FUKUI ,  MAKOTO NAGASHIMA

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

CPC classification number: H01G9/048 ,  H01G9/15 ,  H01G9/0032 ,  H01G9/0036

Abstract: A solid electrolytic capacitor element includes an anode body that includes a porous part in at least a surface layer of the anode body, a dielectric layer, and a cathode part. The cathode part includes a solid electrolyte layer that covers the at least a part of the dielectric layer. The anode body includes a first part and a second part. The first part is a cathode forming part on which the solid electrolyte layer is formed, and the second part is a part on which the solid electrolyte layer is not formed. The second part includes at least an anode part including an end of the anode body opposite to the first part. The first part is sectionalized into a plurality of regions, and the first part has a groove at a boundary between adjacent regions among the plurality of regions.

公开(公告)号：US20160351340A1

公开(公告)日：2016-12-01

申请号：US15234822

申请日：2016-08-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOUICHIROU UKA ,  MAKOTO NAGASHIMA ,  TETSURO IWASA ,  KOJI OKAMOTO

IPC: H01G9/15 ,  H01G9/04 ,  H01G9/07 ,  H01G9/028 ,  H01G9/00

CPC classification number: H01G9/15 ,  H01G9/0032 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/04 ,  H01G9/07

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a first conductive polymer layer covering at least a portion of the dielectric layer, and a second conductive polymer layer covering at least a portion of the first conductive polymer layer. The second conductive polymer layer includes a second conductive polymer and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.

Abstract translation: 电解电容器包括阳极体，在阳极体上形成的电介质层和覆盖电介质层的至少一部分的固体电解质层。 固体电解质层包括覆盖电介质层的至少一部分的第一导电聚合物层和覆盖第一导电聚合物层的至少一部分的第二导电聚合物层。 第二导电聚合物层包括第二导电聚合物和水溶性聚合物。 水溶性聚合物是包含亲水性基团的亲水性单体单元的共聚物。 亲水基团是选自羧基，酸酐基，酚羟基和C 2-3亚烷基氧基中的至少一个基团。

公开(公告)号：US20230076194A1

公开(公告)日：2023-03-09

申请号：US17759528

申请日：2021-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HITOSHI FUKUI ,  KATSUHISA ISHIZAKI ,  MASAMICHI INOUE ,  DAISUKE USA ,  MAKOTO NAGASHIMA ,  HIROMI OZAWA

IPC: H01G9/15 ,  H01G9/012 ,  H01G9/07 ,  H01G9/025

Abstract: A capacitor element includes an anode body, a dielectric layer disposed on a surface of the anode body, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. An insulating member is disposed from an outermost surface of the cathode lead-out layer to a depth of more than or equal to 0.001 μm.

公开(公告)号：US20150262754A1

公开(公告)日：2015-09-17

申请号：US14726632

申请日：2015-06-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MAKOTO NAGASHIMA ,  YOUICHIROU UKA ,  KOJI OKAMOTO ,  SHIGETAKA FURUSAWA

IPC: H01G4/33

CPC classification number: H01G4/33 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/15

Abstract: A first conductive polymer solution in which fine particles of a conductive polymer are dispersed is applied to a dielectric layer of aluminum oxide, and this solution is dried to form a first conductive polymer layer. Next, a coating solution is applied to the first conductive polymer layer, this solution containing at least one selected from an aromatic sulfonic acid having, in one molecule of the acid, a carboxyl group and a hydroxyl group, or two carboxyl groups, and a salt of the aromatic sulfonic acid. The solution is then dried to form a coating layer. Next, a second conductive polymer solution is applied to the coating layer, the solution being a solution in which fine particles of a conductive polymer are dispersed. This solution is then dried to form a second conductive polymer layer. This process gives a solid electrolyte layer of a capacitor element.

Abstract translation: 将导电聚合物的细颗粒分散在其中的第一导电聚合物溶液施加到氧化铝的电介质层上，并将该溶液干燥以形成第一导电聚合物层。 接着，向第一导电性聚合物层涂布涂布溶液，该溶液含有选自在一分子酸中含有羧基，羟基或两个羧基的芳香族磺​​酸中的至少一种，和 芳香磺酸的盐。 然后将溶液干燥以形成涂层。 接着，将第二导电聚合物溶液施加到涂层上，该溶液是其中分散有导电聚合物的细颗粒的溶液。 然后将该溶液干燥以形成第二导电聚合物层。 该方法产生电容器元件的固体电解质层。

公开(公告)号：US20190287732A1

公开(公告)日：2019-09-19

申请号：US16430480

申请日：2019-06-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROKI NAGAYAMA ,  KOUTA MUNEYASU ,  MAKOTO NAGASHIMA

IPC: H01G9/15 ,  H01G9/00 ,  H01G9/10 ,  H01G9/012

Abstract: A solid electrolytic capacitor includes an element laminated body, an anode lead, a cathode lead, a coating layer, and an outer packaging resin. In the element laminated body, a plurality of capacitor elements each having an anode part and a cathode part are laminated. The anode lead is connected to a laminated anode part of the element laminated body. The laminated anode part is a part laminated by a plurality of anode part which include the anode part. The cathode lead is connected to a laminated cathode part of the element laminated body. The laminated cathode part is a part laminated by a plurality of cathode part which include the cathode part. The coating layer fills at least a part of a gap between the plurality of capacitor elements. The outer packaging resin seals the element laminated body together with a part of the anode lead and a part of the cathode lead.

公开(公告)号：US20190148080A1

公开(公告)日：2019-05-16

申请号：US16243140

申请日：2019-01-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HITOSHI FUKUI ,  SHINYA SUZUKI ,  KOJI OKAMOTO ,  MAKOTO NAGASHIMA

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

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a first conductive polymer layer, a second conductive polymer layer, and a third conductive polymer layer that are disposed in this order from the dielectric layer. The first conductive polymer layer contains a first conductive polymer having a thiophene skeleton. The second conductive polymer layer contains a second conductive polymer having at least one of an aniline skeleton and a pyrrole skeleton. The third conductive polymer layer contains a third conductive polymer having a thiophene skeleton.

公开(公告)号：US20220415581A1

公开(公告)日：2022-12-29

申请号：US17756542

申请日：2020-12-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NAOKI UMAHASHI ,  MASATOSHI TAKESHITA ,  HITOSHI FUKUI ,  MAKOTO NAGASHIMA

IPC: H01G9/028 ,  H01G9/15

Abstract: An electrolytic capacitor includes at least one capacitor element. The at least one capacitor element includes: an anode body including an anode lead portion, and a cathode forming portion; a dielectric layer disposed on at least a surface of the cathode forming portion 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 that contains a conductive polymer, and covers at least a part of the dielectric layer. A ratio T1/T2 of a thickness T1 of the solid electrolyte layer formed at a corner portion of the anode body to a thickness T2 of the solid electrolyte layer formed at a center portion of a principal surface of the anode body is in a range from 0.8 to 1.7, inclusive, in a cross section of the at least one capacitor element.

公开(公告)号：US20220122779A1

公开(公告)日：2022-04-21

申请号：US17299773

申请日：2019-12-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAMICHI INOUE ,  SYUSAKU KOIE ,  MAKOTO NAGASHIMA

IPC: H01G9/042 ,  H01G9/025 ,  H01G9/048 ,  H01G9/00

Abstract: An electrolytic capacitor includes a capacitor element having: an anode; a dielectric layer covering at least a part of the anode body; a solid electrolyte layer covering at least a part of the dielectric layer; and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The cathode lead-out layer includes a carbon layer covering at least a part of the solid electrolyte layer, a first metal layer covering at least a part of the carbon layer, and a second metal layer covering at least a part of the first metal layer. The first metal layer contains first metal particle, and the second metal layer contains second metal particles and a second binder resin. The first metal layer contains no binder resin, or contains a first binder resin in a volume ratio smaller than a volume ratio of the second binder resin contained in the second metal layer.

公开(公告)号：US20210125787A1

公开(公告)日：2021-04-29

申请号：US16965352

申请日：2019-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KYOHEI IWAOKA ,  MAKOTO NAGASHIMA ,  SYUSAKU KOIE

IPC: H01G9/00 ,  H01G9/042 ,  H01G9/012

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer that covers at least a part of the anode body, a solid electrolyte layer that covers at least a part of the dielectric layer, and a cathode lead-out layer that covers at least a part of the solid electrolyte layer. The cathode lead-out layer includes a carbon layer and a silver-paste layer. The carbon layer is conductive and covers at least a part of the solid electrolyte layer. And the silver-paste layer covers at least a part of the carbon layer. The carbon layer contains carbon particles and silver.