公开(公告)号：US20220223351A1

公开(公告)日：2022-07-14

申请号：US17708196

申请日：2022-03-30

Applicant: KEMET Electronics Corporation

Inventor： Yaru Shi ,  Antony P. Chacko ,  Ajaykumar Bunha

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

Abstract: Provided herein is a method for forming a capacitor and an improved capacitor formed by the method. The method comprises providing an anode with an anode lead extending therefrom. A dielectric is formed on the anode thereby forming an anodized anode. A cathode layer is formed over the dielectric wherein the cathode layer is formed by applying a conductive polymer solution or dispersion and applying a primer solution or dispersion comprising a monophosphonium or monosulfonium cation.

公开(公告)号：US10658121B2

公开(公告)日：2020-05-19

申请号：US15787126

申请日：2017-10-18

Applicant: KEMET Electronics Corporation

Inventor： Ajaykumar Bunha ,  Antony P. Chacko ,  Qingping Chen ,  Yaru Shi ,  Philip M. Lessner

IPC: H01G9/00 ,  H01G9/042 ,  C09D5/24 ,  C09D165/00 ,  C09D4/06 ,  C09D125/18 ,  C09D7/65 ,  H01G9/15 ,  H01G9/025

Abstract: A capacitor and process for forming the capacitor, is provided wherein the capacitor comprises a conductive polymer layer. The conductive polymer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.

公开(公告)号：US20200152393A1

公开(公告)日：2020-05-14

申请号：US16741105

申请日：2020-01-13

Applicant: KEMET Electronics Corporation

Inventor： Yaru Shi ,  Antony P. Chacko ,  Ajaykumar Bunha ,  Qingping Chen ,  Elisabeth Crittendon Key

IPC: H01G9/15 ,  H01G9/042 ,  H01G9/00 ,  H01G9/08 ,  H01G11/48 ,  H01G9/028

Abstract: Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion of the dielectric by applying a first slurry wherein the first slurry comprises a polyanion and a conductive polymer and wherein the polyanion and conductive polymer are in a weight ratio of greater than 3 wherein the conductive polymer and polyanion forms conductive particles with an average particle size of no more than 20 nm.

公开(公告)号：US10522296B2

公开(公告)日：2019-12-31

申请号：US16237862

申请日：2019-01-02

Applicant: KEMET Electronics Corporation

Inventor： Antony P. Chacko ,  Yaru Shi ,  Robert Ramsbottom ,  John T. Kinard ,  John Joseph Ols

IPC: H01G9/15 ,  H01G9/00 ,  H01G9/025 ,  H01G9/028 ,  H01G9/042

Abstract: A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode.

公开(公告)号：US20190311857A1

公开(公告)日：2019-10-10

申请号：US16435762

申请日：2019-06-10

Applicant: KEMET Electronics Corporation

Inventor： Ajaykumar Bunha ,  Antony P. Chacko ,  Yaru Shi ,  Qingping Chen ,  Philip M. Lessner

IPC: H01G9/00 ,  H01G9/042 ,  C09D125/18 ,  C09D5/24 ,  C09D4/06 ,  C09D165/00 ,  C08F212/14 ,  C08F12/30 ,  C09D133/14 ,  C09D7/65 ,  H01G9/15 ,  H01G9/025

Abstract: An improved capacitor is provided wherein the capacitor comprises a conductive polymer layer. The conductive polymer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.

公开(公告)号：US20190267194A1

公开(公告)日：2019-08-29

申请号：US16411915

申请日：2019-05-14

Applicant: KEMET Electronics Corporation

Inventor： Ajaykumar Bunha ,  Antony P. Chacko ,  Yaru Shi ,  Qingping Chen ,  Philip M. Lessner

IPC: H01G9/042 ,  H01M4/137 ,  H01G9/15 ,  H01G9/04 ,  H01M4/136 ,  H01G9/00

Abstract: A capacitor and a method of making a capacitor, is provided with improved reliability performance. The capacitor comprises an anode; a dielectric on the anode; and a cathode on the dielectric wherein the cathode comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented by Formula AxByCz as described herein.

公开(公告)号：US20180323015A1

公开(公告)日：2018-11-08

申请号：US16038609

申请日：2018-07-18

Applicant: KEMET Electronics Corporation

Inventor： Victor Andoralov ,  Débora Sá ,  Alexandre Guerreiro Fonseca ,  Antony P. Chacko ,  Yaru Shi ,  Philip M. Lessner

IPC: H01G11/04 ,  H01G11/52 ,  H01G11/60 ,  H01G11/32 ,  H01G11/84

CPC classification number: H01G11/04 ,  H01G11/26 ,  H01G11/32 ,  H01G11/48 ,  H01G11/52 ,  H01G11/58 ,  H01G11/60 ,  H01G11/74 ,  H01G11/84 ,  H01G11/86

Abstract: An improved capacitor is described wherein the capacitor comprises a working element. The working element comprises a first dielectric and an anode conductive polymer layer on the first dielectric. The working element also comprises a cathode and a separator between the anode conductive polymer layer and the cathode wherein the separator comprises a separator conductive polymer layer wherein at least one of the anode conductive polymer layer or the separator conductive polymer layer is crosslinked. The working element also comprises a liquid electrolyte.

公开(公告)号：US09959979B2

公开(公告)日：2018-05-01

申请号：US14183633

申请日：2014-02-19

Applicant: KEMET Electronics Corporation

Inventor： Randolph S. Hahn ,  Jeffrey Poltorak ,  Brandon Summey ,  Antony P. Chacko ,  John T. Kinard ,  Philip M. Lessner

IPC: H01G9/052 ,  H01G9/025 ,  H01G9/15 ,  H01G9/042 ,  H01G9/048 ,  H01G9/00

CPC classification number: H01G9/15 ,  H01G9/0036 ,  H01G9/0425 ,  H01G9/048

Abstract: An improved capacitor is provided wherein the improved capacitor has improved ESR. The capacitor has a fluted anode and an anode wire extending from the fluted anode. A dielectric is on the fluted anode. A conformal cathode is on the dielectric and a plated metal layer is on the carbon layer.

公开(公告)号：US09793058B2

公开(公告)日：2017-10-17

申请号：US14717414

申请日：2015-05-20

Applicant: KEMET Electronics Corporation

Inventor： Antony P. Chacko ,  Yaru Shi ,  Robert Ramsbottom ,  John T. Kinard ,  John Joseph Ols

IPC: H01G9/048 ,  H01G9/15 ,  H01G9/025 ,  H01G9/00

CPC classification number: H01G9/025 ,  H01G9/0032 ,  H01G9/0036 ,  H01G9/048 ,  H01G9/15 ,  Y10T29/42

Abstract: A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode.

公开(公告)号：US09362056B2

公开(公告)日：2016-06-07

申请号：US14063205

申请日：2013-10-25

Applicant: Kemet Electronics Corporation

Inventor： Antony P. Chacko ,  Randolph S. Hahn ,  Pablo Antonio Ruiz

IPC: H01G9/048 ,  H01G9/00 ,  H01G9/012 ,  H01G9/15 ,  C25D7/00 ,  C25D11/26 ,  H01G9/025 ,  C25D11/04

CPC classification number: H01G9/0032 ,  C25D7/00 ,  C25D11/04 ,  C25D11/26 ,  H01G9/012 ,  H01G9/025 ,  H01G9/048 ,  H01G9/15 ,  Y10T29/417

Abstract: A solid electrolytic capacitor and method for forming a solid electrolytic capacitor with high temperature leakage stability is described. The solid electrolytic capacitor has improved leakage current and is especially well suited for high temperature environments such as down-hole applications.

Abstract translation: 描述了一种固体电解电容器和形成具有高温泄漏稳定性的固体电解电容器的方法。 固体电解电容器具有改善的漏电流，特别适用于诸如井下应用的高温环境。