公开(公告)号：US11043334B2

公开(公告)日：2021-06-22

申请号：US16784610

申请日：2020-02-07

Applicant: KEMET Electronics Corporation

Inventor： Antony P. Chacko ,  Christian L. Guerrero ,  John Joseph Ols

IPC: H01G9/052 ,  H01G9/042 ,  H01G9/00 ,  H01G11/48 ,  H01G9/15 ,  H01G9/04

Abstract: An improved capacitor is provided. The capacitor comprises an anode comprising a pressed and sintered, preferably tantalum, powder wherein the anode has edge surfaces and parallel major surfaces. The anode further comprises a first set of parallel surface protrusions and a second set of parallel surface protrusions on each parallel major surface wherein the first set of parallel surface protrusions and second set of parallel surface protrusions are not parallel and form a well therebetween. An anode wire extends from an edge surface of the edge surfaces. A dielectric is on the anode and a conductive polymer on said dielectric.

公开(公告)号：US10755864B2

公开(公告)日：2020-08-25

申请号：US16459089

申请日：2019-07-01

Applicant: KEMET Electronics Corporation

Inventor： Antony P Chacko ,  John Joseph Ols

IPC: H01G9/042 ,  H01G9/15 ,  C25D11/26 ,  H01G9/00 ,  H01G9/028 ,  C25D5/18

Abstract: Provided herein is a capacitor, and method for forming a capacitor, comprising an anode, a dielectric over the anode; a cathode over the dielectric; and the cathode comprises core shell particles.

公开(公告)号：US20190139709A1

公开(公告)日：2019-05-09

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

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：US10204743B2

公开(公告)日：2019-02-12

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

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：US20170098512A1

公开(公告)日：2017-04-06

申请号：US15379729

申请日：2016-12-15

Applicant: KEMET Electronics Corporation

Inventor： Antony P. Chacko ,  Phillip M. Lessner ,  John Joseph Ols ,  Yaru Shi ,  Qingping Chen

IPC: H01G9/048 ,  H01G9/045 ,  H01G9/15 ,  H01G9/042 ,  H01G9/00 ,  H01G9/025

CPC classification number: H01G9/045 ,  H01G9/0036 ,  H01G9/012 ,  H01G9/028 ,  H01G9/0425 ,  H01G9/08 ,  H01G9/15

Abstract: An improved process for forming an electrolytic capacitor is provided. The process comprises: providing an anode with an anode wire extending from the anode body; forming a dielectric on the anode to form an anodized anode; applying a first slurry wherein the first slurry comprises conducting polymer and polyanion, wherein the polyanion and conducting polymer are in a first weight ratio thereby forming a first slurry layer; and applying a second slurry on the first slurry layer wherein the second slurry comprises the conducting polymer and said polyanion and wherein the polyanion and the conducting polymer are in a second weight ratio wherein the second weight ratio is lower than the first weight ratio.