公开(公告)号：US10128054B2

公开(公告)日：2018-11-13

申请号：US15149720

申请日：2016-05-09

Applicant: Kemet Electronics Corporation

Inventor： Antony P. Chacko ,  Gopakumar Sivasankarapillai ,  Yaru Shi ,  Philip M. Lessner

IPC: H01G9/00 ,  H01B1/00 ,  H01G9/042 ,  H01B1/12 ,  H01G9/028 ,  H01G9/15 ,  C09D5/24 ,  C09D177/12

Abstract: Provided herein is an improved capacitor and a method for forming an improved capacitor. The method includes providing an anode and forming a dielectric on the anode. A linear-hyperbranched polymer is formed and a conductive polymer dispersion is prepared comprising at least one conducting polymer, one polyanion and the linear-hyperbranched polymer. A layer of the conductive polymer dispersion if formed wherein said dielectric is between the anode and the layer.

公开(公告)号：US10109428B2

公开(公告)日：2018-10-23

申请号：US15672000

申请日：2017-08-08

Applicant: KEMET Electronics Corporation

Inventor： Yaru Shi ,  Antony P. Chacko ,  Hong Zhang ,  Qingping Chen ,  Lei Xu ,  Yang Jin ,  Zhen Wu

IPC: H01G9/042 ,  H01G9/15 ,  C09D5/24 ,  H01G9/00 ,  H01G9/012 ,  H01G9/07 ,  H01G9/025 ,  H01G9/028 ,  H01G9/052

Abstract: A method for forming a capacitor, a capacitor formed thereby and an improved composition for a conductive coating are described. The method includes providing an anode, forming a dielectric on the anode and forming a cathode layer over the dielectric by applying a monoamine, a weak acid and a conductive polymer.

公开(公告)号：US20180226197A1

公开(公告)日：2018-08-09

申请号：US15425168

申请日：2017-02-06

Applicant: KEMET ELECTRONICS CORPORATION

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

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

CPC classification number: H01G9/0036 ,  H01G9/0032 ,  H01G9/025 ,  H01G9/028 ,  H01G9/042 ,  H01G9/0425 ,  H01G9/15

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：US20170338047A1

公开(公告)日：2017-11-23

申请号：US15595137

申请日：2017-05-15

Applicant: KEMET Electronics Corporation

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

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

CPC classification number: H01G9/042 ,  H01G9/0036 ,  H01G9/04 ,  H01G9/15 ,  H01G2009/0014 ,  H01G2009/0404 ,  H01M4/136 ,  H01M4/137

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：US09818549B2

公开(公告)日：2017-11-14

申请号：US14482384

申请日：2014-09-10

Applicant: Kemet Electronics Corporation

Inventor： Antony P. Chacko

IPC: H01G9/042 ,  H01G9/04 ,  H01G9/00 ,  B05D5/12 ,  H01G9/028 ,  H01G9/15 ,  H01G9/048

CPC classification number: H01G9/0032 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/042 ,  H01G9/048 ,  H01G9/15 ,  H01G2009/0014 ,  H01G2009/0404

Abstract: A capacitor with an anode and a dielectric over the anode. A first conductive polymer layer is over the dielectric wherein the first conductive polymer layer comprises a polyanion and a first binder. A second conductive polymer layer is over the first conductive polymer layer wherein the second conductive polymer layer comprises a polyanion and a second binder and wherein the first binder is more hydrophilic than the second binder.

公开(公告)号：US09748043B2

公开(公告)日：2017-08-29

申请号：US13959995

申请日：2013-08-06

Applicant: Kemet Electronics Corporation

Inventor： Antony P. Chacko ,  John E. McConnell ,  Robert Ramsbottom ,  Philip M. Lessner ,  Randolph S. Hahn ,  John Bultitude

IPC: H01G9/048 ,  H01G9/00 ,  H01G9/012 ,  H01G11/26 ,  H01G9/04 ,  H01G9/042

CPC classification number: H01G9/048 ,  H01G9/0029 ,  H01G9/012 ,  H01G9/04 ,  H01G9/0425 ,  H01G11/26 ,  Y10T29/417

Abstract: A solid electrolytic capacitor is described which comprises an anode, a dielectric on the anode and a cathode on the dielectric. A conductive coating is on the cathode wherein the conductive layer comprises an exterior surface of a first high melting point metal. An adjacent layer is provided comprising a second high melting point metal, wherein the first high melting point metal and the second high melting point metal are metallurgically bonded with a low melting point metal.

公开(公告)号：US20150348715A1

公开(公告)日：2015-12-03

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: H01G9/025 ,  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.

Abstract translation: 电容器和制造电容器的方法具有改进的充电特性。 电容器具有阳极，包含导电聚合物层的阴极和邻近导电聚合物层的功函数改性剂层和在阳极和阴极之间的介电层。

公开(公告)号：US20150135496A1

公开(公告)日：2015-05-21

申请号：US14490981

申请日：2014-09-19

Applicant: Kemet Electronics Corporation

Inventor： Antony P. Chacko ,  Yang Jin ,  Randolph S. Hahn ,  Yongjian Qiu ,  Philip M. Lessner ,  Keith R. Brenneman

IPC: H01G9/00 ,  B05D1/18

CPC classification number: H01G9/0032 ,  B05D1/185 ,  B82Y99/00 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/0425 ,  H01G9/052 ,  H01G9/15 ,  Y10S977/948 ,  Y10T29/417 ,  Y10T29/43

Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer. Coverage enhancing catalyst is removed after coating and curing.

Abstract translation: 一种制备固体电解电容器的方法，包括应用覆盖增强催化剂，然后施加导电聚合物层。 涂层和固化后除去覆盖增强催化剂。

公开(公告)号：US11676770B2

公开(公告)日：2023-06-13

申请号：US17357441

申请日：2021-06-24

Applicant: KEMET Electronics Corporation

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

IPC: H01G9/028 ,  H01G9/15 ,  H01G9/00 ,  H01G9/042 ,  H01G9/08 ,  H01G11/48 ,  H01G9/052 ,  H01G9/012

CPC classification number: H01G9/15 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/0425 ,  H01G9/0525 ,  H01G9/08 ,  H01G11/48 ,  H01G9/012

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：US20220262569A1

公开(公告)日：2022-08-18

申请号：US17178631

申请日：2021-02-18

Applicant: KEMET Electronics Corporation

Inventor： Antony P. Chacko ,  John Joseph Ols ,  Ajaykumar Bunha ,  Yaru Shi

IPC: H01G4/18 ,  H01G4/005

Abstract: An improved electrolytic capacitor, and method of making the electrolytic capacitor, is provided. The electrolytic capacitor comprises an anode comprising a dielectric layer on the anode. A primary conductive polymer layer is on dielectric and a mordant layer on the primary conductive layer wherein the mordant layer comprises a mordant compound of Formula A; wherein:
each of R1-R6 is independently selected from H and —PO(OR7)2 wherein each R7 is independently selected from H, substituted or unsubstituted alkyl of 1-20 carbons, substituted or unsubstituted aryl of 6-20 carbons or an alkylaryl of 7-21 carbons; with the proviso that at least one of R1-R6 is —PO(OH)2. A secondary conductive polymer layer is on the mordant layer.