公开(公告)号：US12100561B2

公开(公告)日：2024-09-24

申请号：US17481718

申请日：2021-09-22

Applicant: AVX Corporation

Inventor： Masayuki Wakatsuki ,  Yusuke Sasaki ,  Shinpei Etou

IPC: H01G9/15 ,  H01G9/00 ,  H01G9/028 ,  H01G9/032 ,  H01G9/052 ,  H01G9/07 ,  H01G9/10 ,  H01G9/04

CPC classification number: H01G9/15 ,  H01G9/0003 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/032 ,  H01G9/0525 ,  H01G9/07 ,  H01G9/10 ,  H01G2009/05

Abstract: A capacitor that comprises a capacitor element is provided. The capacitor element comprises a deoxidized and sintered anode body that is formed from a powder having a specific charge of about 35,000 μF*V/g or more. Further, a dielectric overlies the anode body and a solid electrolyte overlies the dielectric. The capacitor also exhibits a normalized aged leakage current of about 0.1% or less.

公开(公告)号：US11830681B2

公开(公告)日：2023-11-28

申请号：US17853610

申请日：2022-06-29

Applicant: TOKIN CORPORATION

Inventor： Hitoshi Takata ,  Hiromasa Tanaka

IPC: H01G9/012 ,  H01G9/15 ,  H01G9/04 ,  H01G9/052

CPC classification number: H01G9/012 ,  H01G9/15 ,  H01G9/0525 ,  H01G2009/05

Abstract: A solid electrolytic capacitor includes a capacitor element, an anode terminal and a cathode terminal. The capacitor element includes an anode body, a dielectric layer, a solid electrolytic layer, a conductive layer and an anode lead wire. The anode lead wire is partially embedded in the anode body and extends in a horizontal direction from the anode body. The anode lead wire has a thicker portion and a thinner portion. The thinner portion is positioned closer to the anode body than the thicker portion is in the horizontal direction. The anode terminal at least has a first end, a second end and an overlapping portion. The anode terminal is connected to the anode lead wire under a state where the first end of the anode terminal is positioned on the thinner portion while the overlapping portion of the anode terminal overlaps with the thicker portion.

公开(公告)号：US10074486B2

公开(公告)日：2018-09-11

申请号：US14767243

申请日：2013-12-25

Applicant: NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD. ,  NATIONAL ENGINEERING RESEARCH CENTER FOR SPECIAL METAL MATERIALS OF TANTALUM AND NIOBIUM

Inventor： Guoqi Yang ,  Aiguo Zheng ,  Xueqing Chen ,  Fukun Lin

IPC: B32B15/02 ,  H01G9/042 ,  B22F9/04 ,  H01G9/15 ,  B22F1/00 ,  H01G9/052 ,  H01G9/04

CPC classification number: H01G9/042 ,  B22F1/0007 ,  B22F9/04 ,  B22F2009/043 ,  B22F2999/00 ,  H01G9/052 ,  H01G9/0525 ,  H01G9/15 ,  H01G2009/05 ,  Y10T428/12014 ,  Y10T428/12028 ,  Y10T428/12035 ,  Y10T428/12181 ,  B22F1/0048 ,  B22F1/0055

Abstract: A method for providing a tantalum powder with a piece+block structure, comprising the following steps: 1) providing a granulous tantalum powder, and dividing same into a first part and a second part; 2) putting the first part of the tantalum powder in a ball mill for ball milling, taking the powder out after the ball milling and sieving same, and obtaining a tantalum powder in the form of a piece; 3) mixing the tantalum powder in the form of a piece and the second part of the tantalum powder to obtain a mixture, and preferably, the mixing proportion of the tantalum powder in the form of a piece and the granulous tantalum powder being 1:0.1˜1, preferably being 1:0.25˜0.8, and more preferably being 1:0.4˜0.6; and 4) performing the steps of water washing, acid washing, and nodularization on the mixture to finally obtain a tantalum powder with a piece+block structure.

公开(公告)号：US20180226204A1

公开(公告)日：2018-08-09

申请号：US15909269

申请日：2018-03-01

Applicant: KEMET Electronics Corporation

Inventor： Darius Toader ,  Victor Andoralov ,  Ralf Deisenhofer

IPC: H01G11/26 ,  H01G11/48 ,  H01G11/52 ,  H01G11/86

CPC classification number: H01G11/26 ,  H01G9/008 ,  H01G9/012 ,  H01G9/028 ,  H01G9/0425 ,  H01G9/055 ,  H01G9/151 ,  H01G11/48 ,  H01G11/52 ,  H01G11/58 ,  H01G11/74 ,  H01G11/86 ,  H01G2009/05

Abstract: An improved capacitor is described herein. The capacitor comprises a working element wherein the working element comprises an anode comprising a dielectric thereon and an anode conductive polymer layer on the dielectric. The capacitor also includes a cathode comprising a cathode conductive polymer layer and a conductive separator between the anode and said cathode. An anode lead is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode.

公开(公告)号：US20170084398A1

公开(公告)日：2017-03-23

申请号：US15362005

申请日：2016-11-28

Applicant: AVX Corporation

Inventor： Martin Biler ,  Jan Petrzilek ,  Ivana Zednickova

IPC: H01G9/10 ,  H01G9/042 ,  H01G9/012 ,  H01G9/15 ,  H01G9/052 ,  H01G9/00

CPC classification number: H01G9/10 ,  H01G2/065 ,  H01G4/228 ,  H01G9/0036 ,  H01G9/012 ,  H01G9/032 ,  H01G9/042 ,  H01G9/0525 ,  H01G9/06 ,  H01G9/08 ,  H01G9/15 ,  H01G13/003 ,  H01G2009/05 ,  Y10T29/417

Abstract: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175° C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of moisture supplied to the manganese dioxide. In this manner, the solid electrolyte is less likely to undergo an adverse reaction under extreme conditions, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.

公开(公告)号：US09514890B2

公开(公告)日：2016-12-06

申请号：US14205698

申请日：2014-03-12

Applicant: Kemet Electronics Corporation

Inventor： Brady A. Jones ,  Matthew W. Dufur ,  James Allan Fife

IPC: H01G9/042 ,  B02C17/00 ,  C22C27/02 ,  H01G9/15 ,  H01G9/00 ,  C22C30/00 ,  C22C1/04

CPC classification number: H01G9/042 ,  B02C17/00 ,  B22F1/0011 ,  B22F1/0055 ,  B22F9/04 ,  B22F2009/043 ,  B22F2301/20 ,  B22F2998/10 ,  C22C1/045 ,  C22C27/02 ,  C22C30/00 ,  H01G9/0029 ,  H01G9/0525 ,  H01G9/15 ,  H01G2009/05 ,  Y10T428/12014

Abstract: A method for increasing surface area of a valve metal particle is provided as is an improved valve metal particle provided thereby. The method includes charging a mill apparatus with a valve metal powder and a media wherein the media has an average diameter of at least 0.01 cm to no more than 0.3175 cm. The valve metal powder is then milled at an average kinetic energy of no more than 3,000 ergs per media particle to obtain a milled powder.

Abstract translation: 提供了一种用于增加阀金属颗粒的表面积的方法，因为其由此提供的改进的阀金属颗粒。 该方法包括对具有阀金属粉末和介质的平均直径为至少0.01cm至不大于0.3175cm的介质对轧制设备进行充电。 然后将阀金属粉末以每个介质颗粒的平均动能不超过3,000 ergs进行研磨以获得研磨的粉末。

公开(公告)号：US20160189874A1

公开(公告)日：2016-06-30

申请号：US14958588

申请日：2015-12-03

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Kwi Jong LEE

IPC: H01G9/042 ,  H01G9/048 ,  H01G9/00 ,  H01G9/145

CPC classification number: H01G9/048 ,  H01G9/145 ,  H01G2009/05

Abstract: An electrode structure for a capacitor, an electrolytic capacitor, and a method of manufacturing the same are provided. An electrode structure for a capacitor includes a polymer film; a thin-film electrode layer disposed on the polymer film; and a metal oxide layer disposed on the thin-film electrode layer.

Abstract translation: 提供了一种用于电容器的电极结构，电解电容器及其制造方法。 用于电容器的电极结构包括聚合物膜; 设置在聚合物膜上的薄膜电极层; 以及设置在薄膜电极层上的金属氧化物层。

公开(公告)号：US20240331952A1

公开(公告)日：2024-10-03

申请号：US18126785

申请日：2023-03-27

Applicant: KEMET Electronics Corporation

Inventor： Subarna Banerjee ,  Ajaykumar Bunha ,  John T. Kinard ,  Antony P. Chacko

IPC: H01G9/025 ,  C07F9/117 ,  H01G9/00 ,  H01G9/042 ,  H01G9/052 ,  H01G9/15

CPC classification number: H01G9/025 ,  C07F9/117 ,  H01G9/0032 ,  H01G9/042 ,  H01G9/052 ,  H01G9/15 ,  H01G2009/05 ,  H01G9/07

Abstract: An improved formation electrolyte suitable for formation of an oxide on a valve metal anode and an improved capacitor comprising an oxide formed in the formation electrolyte is provided. The formation electrolyte comprises a derivative of inositol is defined by Formula 1:






wherein:
each of R1-R6 is defined.

公开(公告)号：US20240161984A1

公开(公告)日：2024-05-16

申请号：US18485497

申请日：2023-10-12

Applicant: TDK CORPORATION

Inventor： Akira EBISAWA ,  Hideyuki KOBAYASHI ,  Takaaki MORITA

IPC: H01G9/028 ,  H01G9/012

CPC classification number: H01G9/028 ,  H01G9/012 ,  H01G2009/05

Abstract: A solid electrolytic capacitor includes: a valve metal support having an anode terminal region and a cathode forming region and forming an anode part; and a cathode part provided in a cathode forming region of the valve metal support. The cathode part includes: a solid electrolyte layer that is disposed on a surface of a dielectric layer provided at least on the cathode forming region of the valve metal support and contains a conductive polymer; a waterproof seed layer that is disposed on a surface of the solid electrolyte layer and contains a conductive material; and a metal plating layer disposed on a surface of the waterproof seed layer. A catalytic metal having catalytic activity for plating is provided on the surface of the waterproof seed layer.

公开(公告)号：US11837415B2

公开(公告)日：2023-12-05

申请号：US17570427

申请日：2022-01-07

Applicant: KYOCERA AVX Components Corporation

Inventor： Jan Petrzilek ,  Hiromasa Noborio ,  Jiri Navratil ,  Junichi Murakami

IPC: H01G9/15 ,  H01G9/012 ,  H01G9/052 ,  H01G9/08 ,  H01G9/028 ,  H01G9/04

CPC classification number: H01G9/15 ,  H01G9/012 ,  H01G9/028 ,  H01G9/0525 ,  H01G9/08 ,  H01G2009/05

Abstract: A solid electrolytic capacitor comprising a capacitor element, anode lead extending from a surface of the capacitor element, an anode termination that is in electrical connection with the anode lead, a cathode termination that is in electrical connection with the solid electrolyte, and a casing material that encapsulates the capacitor element and anode lead is provided. A barrier coating is disposed on at least a portion of the capacitor element and is in contact with the casing material. The coating contains a polymeric material that includes a fluorinated component and a non-fluorinated component. The polymeric material has a glass transition temperature of from about 10° C. to about 120° C. and a thermal decomposition temperature of about 200° C. to about 300° C.