公开(公告)号：US11972906B2

公开(公告)日：2024-04-30

申请号：US17099733

申请日：2020-11-16

申请人： Pacesetter, Inc.

发明人： Ralph Jason Hemphill ,  James Brian Smith

IPC分类号： H01G9/00 ,  C25D11/12 ,  H01G9/045 ,  H01G9/048 ,  H01G9/07 ,  H01G9/02 ,  H01G9/055

CPC分类号： H01G9/0032 ,  C25D11/12 ,  H01G9/045 ,  H01G9/048 ,  H01G9/07 ,  H01G9/02 ,  H01G9/055

摘要： A method of producing a capacitor electrode includes forming an oxide layer on a foil. The method also includes inducing defects in the oxide layer followed by reforming the oxide layer. The oxide layer is reformed so as to generate a reformed oxide layer that is an aluminum oxide with a boehmite phase and a pseudo-boehmite phase. The amount of the boehmite phase in the reformed oxide layer is greater than the amount of the pseudo-boehmite phase in the reformed oxide layer.

公开(公告)号：US20240120154A1

公开(公告)日：2024-04-11

申请号：US18275841

申请日：2022-01-26

申请人： TOYO ALUMINIUM KABUSHIKI KAISHA

发明人： Toshifumi Taira

IPC分类号： H01G9/045 ,  B22F1/05 ,  B22F3/10 ,  B22F3/24 ,  B22F7/04 ,  C22C21/00 ,  C23C24/08 ,  C23C28/00 ,  C25D11/04 ,  H01G9/00

CPC分类号： H01G9/045 ,  B22F1/05 ,  B22F3/10 ,  B22F3/24 ,  B22F7/04 ,  C22C21/00 ,  C23C24/087 ,  C23C28/32 ,  C23C28/345 ,  C25D11/04 ,  H01G9/0029 ,  B22F2003/241 ,  B22F2007/042 ,  B22F2301/052 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00

摘要： The present invention provides an electrode material for aluminum electrolytic capacitors, the electrode material being capable of exhibiting a high capacitance required for capacitors and having suppressed equivalent series resistance (ESR), and provides a method for producing the electrode material.
The present invention provides an electrode material for aluminum electrolytic capacitors, comprising a sintered body of an aluminum alloy powder on at least one surface of a substrate, wherein the substrate is an aluminum foil substrate or an aluminum alloy foil substrate, and the aluminum alloy powder contains Fe in an amount of 2 to 499 mass ppm.

公开(公告)号：US11901134B2

公开(公告)日：2024-02-13

申请号：US17103939

申请日：2020-11-24

申请人： Pacesetter, Inc.

发明人： Ralph Jason Hemphill ,  David R. Bowen ,  Thomas F. Strange ,  Xiaofei Jiang

IPC分类号： H01G9/00 ,  H01G9/048 ,  H01G9/07 ,  H01G9/045 ,  H01G9/145 ,  H01G9/055 ,  H01G11/84

CPC分类号： H01G9/0029 ,  H01G9/0032 ,  H01G9/045 ,  H01G9/048 ,  H01G9/055 ,  H01G9/07 ,  H01G9/145 ,  H01G11/84

摘要： Fabricating a capacitor includes forming conduits in a porous layer of material. The porous layer of material has particles that each includes a dielectric on a core. The formation of the conduits causes a portion of the dielectric to convert from a first phase to a second phase. The method also includes removing at least a portion of the second phase of the dielectric from the porous layer of material.

公开(公告)号：US11823847B2

公开(公告)日：2023-11-21

申请号：US17482089

申请日：2021-09-22

申请人： TDK Electronics AG

发明人： Norbert Will ,  László Dobai ,  Péter Kerepesi ,  Csaba Tóth

IPC分类号： H01G9/00 ,  H01G9/035 ,  H01G9/042 ,  H01G9/045 ,  H01G9/06 ,  H01G9/145 ,  H01G9/15 ,  H01G9/055 ,  H01G9/02 ,  H01G9/012

CPC分类号： H01G9/055 ,  H01G9/0036 ,  H01G9/012 ,  H01G9/02 ,  H01G9/035 ,  H01G9/045 ,  H01G9/0425 ,  H01G9/06 ,  H01G9/145 ,  H01G9/151

摘要： A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a method for manufacturing a capacitor includes winding an anode foil, separators and a cathode foil around an axis to form a winding element, flooding the winding element with a polymer dispersion, wherein the polymer dispersion contains electrically conductive solid polymer particles or a polymer powder and a solvent and applying pulses of overpressure to the flooded winding element.

公开(公告)号：US11791104B2

公开(公告)日：2023-10-17

申请号：US16888650

申请日：2020-05-29

申请人： Pacesetter, Inc.

发明人： David Bowen ,  Ralph Jason Hemphill

IPC分类号： H01G9/00 ,  H01G9/04 ,  C25F3/02 ,  C25D11/20 ,  C25D11/24 ,  G01R27/26 ,  C25D11/12 ,  H01G9/045

CPC分类号： H01G9/0032 ,  C25D11/12 ,  C25D11/20 ,  C25D11/24 ,  C25F3/02 ,  G01R27/26 ,  H01G9/04 ,  H01G9/045

摘要： Fabricating an electrode for capacitor includes performing a first set of one or more preliminary oxide formation operations on a sheet of material. The method also includes performing a capacitance test on the sheet of material so as to determine the capacitance of the sheet of material after the one or more preliminary oxide formation operations. The method proceeds on a first path in response to a first result of the capacitance test and on a second path in response to a second result of the capacitance test. The first path includes performing a second set of the one or more preliminary oxide formation operations on the sheet of material so as to reduce the capacitance of the sheet of material below the determined capacitance. The second path excludes performing any preliminary oxide formation operations on the sheet of material.

公开(公告)号：US20230096578A1

公开(公告)日：2023-03-30

申请号：US18075763

申请日：2022-12-06

申请人： Solaredge Technologies Ltd.

发明人： Joel Lang ,  Ronit Romm

IPC分类号： H01G9/045 ,  H01G9/00 ,  H01G9/15 ,  H01G9/055

摘要： A composite electrode foil roll for manufacturing an electrolytic capacitor, including: bands of electrode foils; strips of an isolating material positioned along a width of the composite electrode foil roll at a plurality of locations. The plurality of locations are at equal distances and correspond to a length of an inner cavity of a case of the electrolytic capacitor. The bands of electrode foils and strips of an isolating material are alternating. A method of manufacturing the composite electrode foil roll including alternating bands of electrode foils and strips of an isolating material. The strips are positioned along a width of the composite electrode foil roll at repeated locations. The repeated locations are at equal distances corresponding to a length of an inner cavity of a case of the electrolytic capacitor.

公开(公告)号：US20230067888A1

公开(公告)日：2023-03-02

申请号：US17760356

申请日：2021-02-05

申请人： SARAS MICRO DEVICES, INC.

发明人： Venkatesh SUNDARAM ,  Markondeyaraj PULUGURTHA ,  Dewei ZHU ,  Thomas J. BECK ,  Courtney TIMMS ,  Mary PICKENS ,  Urmi RAY ,  Bart DEPROSPO ,  Kyle DASCH ,  Jen-Chwen LIN ,  Rajesh GOPALASWAMY

IPC分类号： H01G9/045 ,  H01G9/012 ,  H01G9/055 ,  H01G9/07

摘要： Multi-terminal capacitor devices and methods of making multi-terminal capacitor devices are described herein. The multi-terminal capacitor devices may include a plurality of individual capacitors arranged in a single device layer, such as high surface area capacitors. A individual capacitor may include an aluminum foil-based electrode, an aluminum oxide dielectric layer conformal with the aluminum foil-based electrode, and a conductive material electrode, such as a conducting polymer or a conductive ceramic, in conformal contact with the dielectric layer.

公开(公告)号：US11569043B2

公开(公告)日：2023-01-31

申请号：US16875178

申请日：2020-05-15

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Kenichi Ooshiro

IPC分类号： H01G9/00 ,  H01G9/045 ,  H01G9/042

摘要： According to one embodiment, an aluminum electrolytic capacitor includes an anode, a cathode, and a fiber film. The anode includes a first metal layer and a dielectric layer. The first metal layer includes aluminum. The dielectric layer is formed on the first metal layer. The cathode includes a second metal layer. The second metal layer includes aluminum. The fiber film is provided between the anode and the cathode. The fiber film includes a first layer and a second layer. The first layer includes a first fiber having a first diameter. The first layer is provided between the dielectric layer and the second layer. The second layer includes a second fiber having a second diameter smaller than the first diameter.

公开(公告)号：US20220013299A1

公开(公告)日：2022-01-13

申请号：US17482089

申请日：2021-09-22

申请人： TDK Electronics AG

发明人： Norbert Will ,  László Dobai ,  Péter Kerepesi ,  Csaba Tóth

IPC分类号： H01G9/055 ,  H01G9/00 ,  H01G9/02 ,  H01G9/042 ,  H01G9/045 ,  H01G9/145 ,  H01G9/15 ,  H01G9/06 ,  H01G9/035 ,  H01G9/012

摘要： A hybrid polymer aluminum electrolytic capacitor and a method for manufacturing a capacitor are disclosed. In an embodiment a method for manufacturing a capacitor includes winding an anode foil, separators and a cathode foil around an axis to form a winding element, flooding the winding element with a polymer dispersion, wherein the polymer dispersion contains electrically conductive solid polymer particles or a polymer powder and a solvent and applying pulses of overpressure to the flooded winding element.

公开(公告)号：US11222753B2

公开(公告)日：2022-01-11

申请号：US16558271

申请日：2019-09-02

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Miwa Ogawa ,  Naomi Kurihara

IPC分类号： H01G9/045 ,  H01G9/00 ,  H01G9/15 ,  H01G11/00

摘要： An electrode includes a core portion including a first metal, and a porous portion disposed in contact with the core portion. The porous portion includes a porous body, a first dielectric layer, and a second dielectric layer. The porous body is integrated with the core portion and includes the first metal. The first dielectric layer covers at least a part of a surface of the porous body. And the second dielectric layer covers at least a part of the first dielectric layer. The first dielectric layer includes oxide of first metal, and the second dielectric layer includes oxide of a second metal. The second metal is different from the first metal. When T is a thickness of the porous portion, the second metal is distributed to a region closer to the core portion than a position of 0.5T from a boundary between the core portion and the porous portion.