Anode Type Electrode Patents (Class 361/508)
  • Patent number: 11081278
    Abstract: A capacitor including a conductive porous base material having a plurality of pores, a dielectric layer on the conductive porous base material, an upper electrode on the dielectric layer, and an insulating material that extends into the plurality of pores.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 3, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hiromasa Saeki
  • Patent number: 10957493
    Abstract: A wet electrolytic capacitor is provided. The capacitor comprises an anode that comprises an anodically oxidized pellet formed from a pressed and sintered valve metal powder, a cathode that comprises a metal substrate coated with a conductive coating, a microporous membrane that is positioned between the anode and cathode and contains an olefin polymer having a weight-average molecular weight of about 1,000,000 grams per mole or more, and a fluidic working electrolyte in communication with the anode and the cathode.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 23, 2021
    Assignee: AVX Corporation
    Inventor: Mitchell D. Weaver
  • Patent number: 10941060
    Abstract: The present subject matter is directed to water disinfection by pulsed electric field (PEF) systems. The present subject matter relates to a pulsed electric field assembly with a separator that separates and disinfects the microorganisms in drinking water. The present subject matter relates to an anti-corrosion electrode, particularly an electrode having a zeolite coating layer serving as a protector, a process for the preparation a zeolite coating on a conducting electrode substrate, and application of the zeolite coated electrode on water electrolysis and PEF systems.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: March 9, 2021
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: King Lun Yeung, Joseph Kai Cho Kwan, Siu Ming Kwan, Oi Wa Lee, Pik Shuen Karen Hung
  • Patent number: 10903004
    Abstract: The present invention provides a capacitor including a conductive porous base material with a porous part, a dielectric layer and an upper electrode. The porous part, the dielectric layer, and the upper electrode are stacked on top of one another in this order to define a capacitance formation part. The capacitance format ion part is not present at a lateral end part of the porous part.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 26, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kensuke Aoki
  • Patent number: 10879011
    Abstract: A method for producing a solid electrolytic capacitor that includes preparing a first sheet, preparing a second sheet, covering the first sheet with an insulating material, forming an electric conductor layer on the first sheet, producing a laminated sheet by laminating the first sheet and the second sheet, producing a multilayer block body, cutting the multilayer block body to produce a plurality of multilayer body elements, and forming a first outer electrode and a second outer electrode on the plurality of multilayer body elements.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: December 29, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Furukawa, Katsutomo Aritomi, Koji Fujimoto
  • Patent number: 10777361
    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.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 15, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: Darius Toader, Victor Andoralov, Ralf Deisenhofer
  • Patent number: 10615389
    Abstract: A separator for a secondary battery includes a porous polymer sheet having a first surface, a second surface opposing the first surface, and a plurality of pores connecting the first surface to the second surface; and heat-resistant inorganic layers formed on at least one of the first surface or the second surface of the porous polymer sheet and on internal surfaces of the pores using an atomic layer deposition (ALD) process. The at least one of the first surface or the second surface and the internal surfaces of the pores have hydrophobically coated hydrophobic layers having hydrophobic functional groups on the heat-resistant inorganic layers.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 7, 2020
    Assignees: SK Innovation Co., Ltd., SK IE TECHNOLOGY CO., LTD.
    Inventors: Hye Jin Kim, Won Sub Kwack, Min Sang Park
  • Patent number: 10490362
    Abstract: A method of reducing outgassing in a supercapacitor comprised of carbon-containing electrodes and at least one ionic liquid is characterised by the steps of (a) contacting the carbon-containing electrodes with a tetrafluoroborate salt; (b) applying a potential difference across the carbon-containing electrodes whilst in contact with the salt in a cycle during which electrical charge is stored on and discharged from the electrodes; and (c) continuing further cycles of step (b) until such time as substantially no further outgassing from the system occurs.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 26, 2019
    Assignee: ZapGo Ltd
    Inventors: Stephen David Voller, Timothy Walder, Marappa Rajendran
  • Patent number: 10439199
    Abstract: An electrochemical device electrode pertaining to one mode of the present invention has a current collector, an aluminum oxide layer, a conductive layer, and an active material layer. The current collector is an aluminum foil. The aluminum oxide layer is formed on a principle surface of the current collector and contains aluminum hydroxide and aluminum oxide. The conductive layer is formed on the aluminum oxide layer and contains conductive material, while the active material layer is formed on the conductive layer.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: October 8, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Yuki Kawai
  • Patent number: 10283283
    Abstract: A separator for an electric double-layer capacitor is provided having a double-layer structure made of a fibrous layer A obtained by papermaking using a Fourdrinier net or a tanmo net, and a fibrous layer B obtained by papermaking using a cylinder net. The fibrous layer A is a layer that is refined until a CSF value decreases once to 0 ml (lower limit), and further refined until it turns to rise to 10 to 600 ml, the fibrous layer B is a layer that is refined until a CSF value of 700 to 0 ml, and the fibrous layer A and the fibrous layer B contain 70% by mass or more refinable, regenerated cellulose fibers. The density of the entire double-layer structure is 0.25 to 0.65 g/cm3, and the thickness of the same is 10 to 150 ?m.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 7, 2019
    Assignee: NIPPON KODOSHI CORPORATION
    Inventors: Takumi Ichimura, Naoki Fujimoto, Norihiro Wada, Gaku Matsuoka
  • Patent number: 10119527
    Abstract: A self-contained ion powered aircraft assembly is provided. The aircraft assembly includes a collector assembly, an emitter assembly, and a control circuit operatively connected to at least the emitter and collector assemblies and comprising a power supply configured to provide voltage to the emitter and collector assemblies. The assembly is configured, such that, when the voltage is provided from an on board power supply, the aircraft provides sufficient thrust to lift each of the collector assembly, the emitter assembly, and the entire power supply against gravity.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: November 6, 2018
    Inventor: Ethan Daniel Krauss
  • Patent number: 10026962
    Abstract: A silicon-based anode comprises an alginate-containing binder. The many carboxy groups of alginate bind to a surface of silicon, creating strong, rigid hydrogen bonds that withstand battery cycling. The alginate-containing binder provides good performance to the anode by (1) improving the capacity of the anode in comparison to other commercially-available binders, (2) improving Columbonic efficiency during charging and discharging cycles, and (3) improving stability during charging and discharging cycles.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: July 17, 2018
    Assignees: Georgia Tech Research Corporation, Clemson University Research Foundation
    Inventors: Gleb Yushin, Igor Luzinov, Bogdan Zdyrko, Oleksandr Magazynskyy, Igor Kovalenko
  • Patent number: 9966196
    Abstract: A solid electrolytic capacitor and method for making the capacitor are provided. The capacitor includes a sintered porous anode body; a sintered anode substrate; a dielectric that overlies at least a portion of the anode body and at least a portion of the anode substrate and that is also formed within at least a portion of the anode body; a solid electrolyte cathode overlying at least a portion of the dielectric that overlies the anode body; an anode termination that is electrically connected to the anode substrate; and a cathode termination that is electrically connected to the solid electrolyte. The anode body is disposed on a planar surface of the anode substrate, and both the anode body and substrate are formed from a powder of a valve metal composition. Further, the anode substrate is hermetic and impermeable to liquids.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 8, 2018
    Assignee: AVX Corporation
    Inventors: Joseph W. Paulus, John R. Sturmer
  • Patent number: 9819016
    Abstract: A composite electrode includes a sheet of carbon nanotubes (CNTs) and an electrically conductive metal. The sheet of CNTs include a surface region where carbon atoms are available. The metal is chemically bonded to at least a portion of the carbon atoms whereby a metal carbide is defined.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 14, 2017
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Farhad Forohar, Victor Bellitto, Vasant Shivran Joshi, Stanley Caulder
  • Patent number: 9779885
    Abstract: A method for pre-doping a lithium ion capacitor, including: compressing a lithium ion capacitor of the formula: C/S/A/S/C/S/A/S/C, where: /A/ is an anode coated on both sides with an anode carbon layer, and each anode carbon layer is further coated with lithium composite powder (LCP) layer; C/ is a cathode coated on one side with a layer of an cathode carbon mixture; and S is a separator; and a non-aqueous electrolyte; and conditioning the resulting compressed lithium ion capacitor, for example, at a rate of from C/20 to 4C, and the conditioning redistributes the impregnated lithium as lithium ions in the anode carbon structure. Also disclosed is an carbon coated anode having lithium composite powder (LCP) layer compressed on the carbon coated anode.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: October 3, 2017
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Rahul Suryakant Kadam
  • Patent number: 9768449
    Abstract: The present invention relates to an electrode assembly, to a method for manufacturing same, and to a battery charging and discharging method. The electrode assembly according to one embodiment of the present invention includes: an electrode collector, wherein a first electrical active material layer is stacked on the electrode collector; and a first porous conductive network layer of which at least one portion is recessed into the first electrical active material layer, wherein the first porous conductive network layer is stacked on the circumferential surface opposite to that of the first electrical active material layer contacting the electrode collector.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: September 19, 2017
    Assignee: JENAX INC.
    Inventors: Chang Hyeon Kim, Lee Hyun Shin
  • Patent number: 9419214
    Abstract: A target including: at least one refractory metal element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, and lanthanoids; at least one element selected from the group consisting of Al, Ge, Zn, Co, Cu, Ni, Fe, Si, Mg, and Ga; and at least one chalcogen element selected from the group consisting of S, Se, and Te. And a method for producing the target.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 16, 2016
    Assignee: SONY CORPORATION
    Inventors: Kazuhiro Ohba, Yuichi Kamori, Hitoshi Kimura
  • Patent number: 9384903
    Abstract: An energy storage device comprises at least one porous structure (500, 900) containing multiple channels (510), each one of which has an opening to a surface (505) of the porous structure. Each one of the channels has a first end (511) having a first average width (513) and a second end (512) having a second average width (514), with the first end being located where the channel opens to the surface of the porous structure and the second end being located at a distance from the first end as measured along a length of the channel. For at least some of the channels, the first average width is larger than the second average width.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: July 5, 2016
    Inventors: Donald S. Gardner, Wei Jin, Zhaohui Chen
  • Patent number: 9373448
    Abstract: A method of manufacturing an electrolytic capacitor includes preparing a dielectric film formed on a surface of an anode foil, forming a first conductive polymer layer on a surface of the dielectric film by immersing the anode foil in first dispersion solution including conductive polymer particles and forming a second conductive polymer layer covering the first conductive polymer layer solvent by immersing the anode foil in second dispersion solution including second conductive polymer particles and second solvent. The surface of the anode foil has plural pits formed therein. The second dispersion solution has a pH value farther from 7 than the first dispersion solution does. This configuration can suppress damages to the dielectric film.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: June 21, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryo Majima, Hitoshi Ishimoto, Tatsuji Aoyama
  • Patent number: 9085971
    Abstract: A process and a system for enhancing recovery of oil from an oil-bearing formation are provided in which water having a total dissolved solids content is filtered to remove some solids in a filter assembly, the filtered water is treated to remove some ions in a capacitive deionization assembly, and the filtered deionized water is injected into the oil-bearing formation to mobilize crude oil and enhance oil recovery from the formation.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 21, 2015
    Assignee: Shell Oil Company
    Inventors: Albert Joseph Hendrik Janssen, Guillo Alexander Schrader, Paulus Henricus Joannes Verbeek
  • Patent number: 9025313
    Abstract: In one embodiment, a structure for a energy storage device may include at one polycrystalline substrate. The grain size may be designed to be at least a size at which phonon scattering begins to dominate over grain boundary scattering in the polycrystalline substrate. The structure also includes a porous structure containing multiple channels within the polycrystalline substrate.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 5, 2015
    Assignee: Intel Corporation
    Inventor: Eric C. Hannah
  • Patent number: 9013861
    Abstract: In one embodiment a charge storage device includes first (110) and second (120) electrically conductive structures separated from each other by a separator (130). At least one of the first and second electrically conductive structures includes a porous structure containing multiple channels (111, 121). Each one of the channels has an opening (112, 122) to a surface (115, 125) of the porous structure. In another embodiment the charge storage device includes multiple nanostructures (610) and an electrolyte (650) in physical contact with at least some of the nanostructures. A material (615) having a dielectric constant of at least 3.9 may be located between the electrolyte and the nanostructures.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: April 21, 2015
    Assignee: Intel Corporation
    Inventors: Donald S. Gardner, Eric C. Hannah, Rong Chen, John L. Gustafson
  • Patent number: 9001496
    Abstract: An electrode for electric double-layer capacitor includes a collector with a protective layer containing phosphorous on its surface, and a polarizable electrode layer that is formed on this collector and can adsorb and desorb ions. An amount of a phosphorous compound per unit surface area of the collector, eluted when the collector is immersed into water, is not greater than 1.35 mg/m2 in terms of phosphorous equivalent. An electric double-layer capacitor employs this electrode for at least one of a positive electrode and a negative electrode.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 7, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomohiro Okuzawa, Motonori Morikazu
  • Patent number: 8988859
    Abstract: This document discusses capacitive elements including a first, second and third electrode arranged in a stack. The third electrode is positioned between the first and second electrode. An interconnect includes a unitary substrate shared with the first and second electrodes. The interconnect is adapted to deform to accommodate the stacked nature of the first and second electrodes. The unitary substrate includes a sintered material disposed thereon.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 24, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Gregory J. Sherwood, Jay E. Daley, Mary M. Byron, Eric Stemen, Peter Jay Kuhn
  • Patent number: 8988858
    Abstract: A negative electrode for an electrochemical capacitor includes a current collector having electric conductivity, and an electrode layer formed on a surface of the current collector and having cations stored therein. In at least a part of the electrode layer, a value of ratio Ia/Ib of peak value Ia indicating a presence of an anion decomposition compound and peak value Ib indicating a presence of an electrolyte in a spectrum of an atom forming the anion is 0.45 or more and less than 2.55 as measured using X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kiyohiro Isii, Hideki Shimamoto, Junko Fujisawa, Susumu Nomoto
  • Publication number: 20150077901
    Abstract: A wet electrolytic capacitor that contains a casing within which is positioned an anode formed from an anodically oxidized sintered porous body and a fluidic working electrolyte is provided. The casing contains a composite coating disposed on a surface of a metal substrate. The composite coating includes a noble metal layer that overlies the metal substrate and a conductive polymer layer that overlies the noble metal layer.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: AVX Corporation
    Inventor: Jan Petrzilek
  • Publication number: 20150077900
    Abstract: A wet electrolytic capacitor that contains a casing within which is positioned an anode formed from an anodically oxidized sintered porous body and a fluidic working electrolyte is provided. The casing contains a metal substrate over which is disposed a hydrogen protection layer that contains a plurality of sintered agglomerates formed from a valve metal composition. The present inventors have discovered that through careful selection of the relative particle size and distribution of the agglomerates, the resulting protection layer can effectively absorb and dissipate hydrogen radicals generated during use and/or production of the capacitor, which could otherwise lead to embrittlement and cracking of the metal substrate.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: AVX Corporation
    Inventor: Jan Petrzilek
  • Publication number: 20150077902
    Abstract: A wet electrolytic capacitor that contains a casing within which is positioned an anode formed from an anodically oxidized sintered porous body and a fluidic working electrolyte is provided. The casing contains a conductive coating disposed on a surface of a metal substrate. The casing contains a metal substrate coated with a conductive coating. The conductive coating contains a conductive polymer layer formed through anodic electrochemical polymerization (“electro-polymerization”) of a colloidal suspension on the surface of the metal substrate. The conductive coating also contains a precoat layer that is discontinuous in nature and contains a plurality of discrete projections of a conductive material that are deposited over the surface of the metal substrate in a spaced-apart fashion so that they form “island-like” structures.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: AVX Corporation
    Inventors: Jan Petrzilek, Martin Biler, Mitchell D. Weaver
  • Publication number: 20150064565
    Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
    Type: Application
    Filed: October 7, 2014
    Publication date: March 5, 2015
    Inventors: Hiroatsu TODORIKI, Yumiko SAITO, Takahiro KAWAKAMI, Kuniharu NOMOTO, Mikio YUKAWA
  • Publication number: 20150016024
    Abstract: Disclosed is a cathode active material having a core-shell structure. The core-shell cathode active material includes a core including a lithium transition metal oxide with excellent electrochemical properties and a shell formed by coating the surface of the core with a transition metal oxide. The formation of the shell by coating a transition metal oxide on the surface of the core comprising a lithium transition metal oxide prevents the structure of the lithium transition metal oxide from collapsing and inhibits the dissolution of manganese ions, enabling the fabrication of a hybrid capacitor with improved energy density and rate characteristics. Also disclosed is a method for producing the cathode active material.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 15, 2015
    Applicant: KOREA INSITIUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Won Chang CHOI, Ji Hun PARK, Martin HALIM, Joong Kee LEE, Jung Sub KIM, Kyu-Ha LEE, Bong Jo KANG, A Young KIM, Hun Gi JUNG, Yu Jin CHAE, Joo Man WOO, Yong-Ho LEE, Tae Yong KIM
  • Patent number: 8902566
    Abstract: A capacitor has a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the electrode layers. At least one of the electrode layers of this capacitor has an Al porous body, and an electrode body held in this Al porous body to polarize the electrolyte. The oxygen content in the surface of the Al porous body is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body is 3.1% by mass or less is equal to the matter that a high-resistance oxide film is hardly formed on the surface of the Al porous body. Thus, this Al porous body makes it possible to make the current collector area of the electrode layer large so that the capacitor can be improved in capacity.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: December 2, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Nobuhiro Ota, Akihisa Hosoe, Masatoshi Majima, Koji Nitta, Tomoyuki Awazu, Kazuki Okuno, Masahiro Kato, Shoichiro Sakai, Shinji Inazawa
  • Patent number: 8883351
    Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroatsu Todoriki, Yumiko Saito, Takahiro Kawakami, Kuniharu Nomoto, Mikio Yukawa
  • Patent number: 8848339
    Abstract: A capacitor and a manufacturing method thereof are provided. Two electrodes are disposed opposite to each other. Two electrode protection layers are respectively disposed on inner sides of the electrodes and include carbon particles each covered and bonded with a polymer shell. Active carbon layers are disposed on opposite inner sides of the electrode protection layers. The separator is disposed between the active carbon layers. The electrolyte fills between the electrode protection layers. The polymer shells of each electrode protection layer are bonded to the surface of the corresponding electrode by first and second functional groups. The first functional groups include thiol groups. The second functional groups include epoxy groups or carboxylic groups. The electrode protection layers serve as adhesion layers between the active carbon layers and the electrodes, and protect the electrodes from being corroded by the acid electrolyte solution.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Hsieh-Ho Tsai, Yu-Lin Hsin, Yu-Ming Lin, Li-Key Chen, Mei-Hua Wang, Chih-Kuang Chang
  • Patent number: 8848340
    Abstract: An energy storage device includes a first conductor having a first surface and a second surface. The energy storage device also includes a second conductor and a separator assembly that encloses the first conductor and that is disposed between the first and second conductors. The separator assembly also includes a first portion that covers the first surface and a second portion that covers the second surface. The first and second portions are attached to one another, and at least one of the first and second portions includes a first sheet and a second sheet that are attached to one another. The first sheet includes a first material, and the second sheet includes a second material that is different from the first material.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 30, 2014
    Assignee: Medtronic, Inc.
    Inventors: Christian S. Nielsen, Timothy T. Bomstad, Frank T. Greenwald
  • Patent number: 8842411
    Abstract: A multi-layer capacitor includes a first capacitor layer and a second capacitor layer adjacent and substantially parallel to the first capacitor layer. The second capacitor layer has a surface area that is less than the surface area of the first capacitor layer.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 23, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Jin Zhang, Wisit Lim, Conor Flannery
  • Publication number: 20140268497
    Abstract: A wet electrolytic capacitor that contains electrodes (i.e., anode and cathode) and a working electrolyte is provided. The anode and optionally the cathode include a wire assembly containing two or more individual wires. A particulate material is also disposed in contact with at least a portion of the wire assembly.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: AVX Corporation
    Inventors: Mitchell D. Weaver, Zebbie Lynn Sebald
  • Patent number: 8817452
    Abstract: Embodiments of the present invention are directed to an energy storage device and a method for manufacturing the energy storage device. The method includes accessing a metal substrate and forming plurality of carbon nanotubes (CNTs) directly on a metal substrate. The method further includes removing substantially all amorphous carbon from said plurality of CNTs and coupling the plurality of CNTs to an electrolytic separator.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 26, 2014
    Assignee: Ultora, Inc.
    Inventors: Cattlien Van Nguyen, Darrell Lee Niemann
  • Publication number: 20140218843
    Abstract: A sintered article in which a solid body is at least partially embedded includes an opening. The solid body extends across the opening so that the solid body can deform within the opening. The opening in the solid body prevents distortion of the sintered body from a planar configuration during sintering, even when the green body that is sintered is relatively thin.
    Type: Application
    Filed: April 3, 2014
    Publication date: August 7, 2014
    Applicant: EVANS CAPACITOR COMPANY
    Inventor: David A. Evans
  • Patent number: 8787000
    Abstract: A interactive electrostatic field high energy storage AC blocking capacitor in which a first a first embodiment of the invention comprises a charging plate in the form of an active interactive electrostatic field charging plate 10 being formed from electric conducting material into a three longitudinal parallel partially separated sectioned closed continuous electrical loop, comprising a mid-section 12 and two outer sections 13 and 14, one at each side of the mid-section. The charging plate in the form of an active interactive electrostatic field charging plate 10 is capacitively coupled to a negative plate 27 by a dielectric material 22 and the negative plate 27 is provided with a connector 15 for connection to an electric circuit. The mid-section 12 is provided with a connector 15 as means to connect it to a source of a charge and the two outer sections 13 and 14 being electrically connected at 16 and 17 to the mid-section 12 is such a way so they have opposing charging current flow.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: July 22, 2014
    Inventor: Paul Lenworth Mantock
  • Publication number: 20140178728
    Abstract: A method of fabricating an energy storage device with a large surface area electrode comprises: providing an electrically conductive substrate; depositing a semiconductor layer on the electrically conductive substrate, the semiconductor layer being a first electrode; anodizing the semiconductor layer, wherein the anodization forms pores in the semiconductor layer, increasing the surface area of the first electrode; after the anodization, providing an electrolyte and a second electrode to form the energy storage device. The substrate may be a continuous film and the electrode of the energy storage device may be fabricated using linear processing tools. The semiconductor may be silicon and the deposition tool may be a thermal spray tool. Furthermore, the semiconductor layer may be amorphous. The energy storage device may be rolled into a cylindrical shape. The energy storage device may be a battery, a capacitor or an ultracapacitor.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Omkaram NALAMASU, Steven VERHAVERBEKE
  • Patent number: 8749954
    Abstract: Electrode foil includes an aluminum alloy having a composition in a region at least 10 ?m deep from a surface of the foil. The composition includes aluminum as a main component and zirconium of at least 0.03 at % and at most 0.5 at %.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: June 10, 2014
    Assignee: Panasonic Corporation
    Inventors: Masashi Shoji, Hitoshi Ishimoto, Ayumi Kochi, Tomohiro Maruoka, Naomi Kurihara, Takao Sato
  • Patent number: 8749953
    Abstract: A thin energy storage device having high capacity is obtained. An energy storage device having high output is obtained. A current collector and an active material layer are formed in the same manufacturing step. The number of manufacturing steps of an energy storage device is reduced. The manufacturing cost of an energy storage device is suppressed. One embodiment of the present invention relates to an electric double layer capacitor which includes a pair of electrodes including a porous metal material, and an electrolyte provided between the pair of electrodes; or a lithium ion capacitor which includes a positive electrode that is a porous metal body functioning as a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte provided between the positive electrode and the negative electrode.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: June 10, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Junpei Momo, Yumiko Saito, Rie Matsubara, Hiroatsu Todoriki
  • Patent number: 8730650
    Abstract: Improved flow through capacitors (FTC) and methods for purifying aqueous solutions are disclosed. For example, FTC electrodes that are activated with a poly-electrolyte are disclosed.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: May 20, 2014
    Assignee: Voltea Limited
    Inventors: Hank Robert Reinhoudt, Albert Van Der Wal, Elodie Helene Mado Taboulot
  • Publication number: 20140134488
    Abstract: An electrochemical cell includes an anode having a metal material having an oxygen containing layer. The electrochemical cell also includes a cathode and an electrolyte. The anode includes a protective layer formed by reacting a D or P block precursor with the oxygen containing layer.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 15, 2014
    Applicants: The Regents of the University of California, Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Erik Menke, Grant Umeda, Bruce Dunn, Fred Wudl, Monique N. Richard, Kimber L. Stamm Masias
  • Publication number: 20140099554
    Abstract: To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.
    Type: Application
    Filed: September 20, 2013
    Publication date: April 10, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro INOUE, Ryota Tajima, Tamae Moriwaka, Junpei Momo, Teppei Oguni, Kai Kimura, Kazutaka Kuriki, Shunpei Yamazaki
  • Patent number: 8687347
    Abstract: A relatively thin planar anode for use in a wet electrolytic capacitor is provided. Through a combination of specific materials and processing techniques, the present inventors have surprisingly discovered that the resulting anode may possess a high volumetric efficiency, yet still be able to operate at a high voltage and capacitance, resulting in a capacitor with a high energy density. The anode is a pressed pellet formed from an electrically conductive powder that contains a plurality of particles (including agglomerates thereof) having a flake-like morphology. The present inventors have discovered that such a morphology can optimize packing density, which reduces the thickness of the anode and improves volumetric efficiency. Such particles can provide a short transmission line between the outer surface and interior of the anode and a highly continuous and dense wire-to-anode connection with high conductivity. The particles may also increase the breakdown voltage and help lower ESR.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: April 1, 2014
    Assignee: AVX Corporation
    Inventors: James Steven Bates, Robert Hazen Pease
  • Patent number: 8675348
    Abstract: A capacitor for an implantable medical device is presented. The capacitor includes an anode, a cathode, a separator therebetween, and an electrolyte over the anode, cathode, and separator. The electrolyte includes ingredients comprising acetic acid, ammonium acetate, phosphoric acid, and tetraethylene glycol dimethyl ether. The capacitor has an operating voltage ninety percent or greater of its formation voltage.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: March 18, 2014
    Assignee: Medtronic, Inc.
    Inventors: Mark E. Viste, John D. Norton, Joachim Hossick-Schott, Anthony W. Rorvick
  • Publication number: 20140055911
    Abstract: A laminate type energy device includes a plurality of cells, each having a laminated body of at least two layers laminated such that positive and negative electrodes are alternated, with a separator through which an electrolyte and ions are passed, interposed between the positive and negative active material electrodes, and positive and negative lead-out electrodes are exposed. Tab electrodes that allow electricity to flow outside of the laminate type energy device are joined to the lead-out electrodes via connecting portions. The cells are sealed by a sheathing laminate sheet via a sealing material covering at least the connecting portions.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 27, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Hideki SAWADA
  • Patent number: 8659876
    Abstract: An electrode foil for capacitor includes a substrate made of valve metal and a rough-surface layer on the substrate. The rough-surface layer includes a base layer on the substrate and a cover layer on the base layer. The base layer includes first fine particles made of valve metal. The cover layer includes second fine particles made of valve metal. The first fine particles have an average particle diameter larger than that of the second fine particles. This electrode foil has the rough-surface layer that can be produced stably by vapor deposition and provides an electrolytic capacitor having a large capacitance.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: February 25, 2014
    Assignee: Panasonic Corporation
    Inventor: Akiyoshi Oshima
  • Patent number: 8654508
    Abstract: Disclosed is an electrochemical capacitor which comprises an element, an electrolyte, and an outer case that houses the element and the electrolyte. The element comprises: a negative electrode that is obtained by forming a negative electrode layer on the surface of a collector, the negative electrode layer containing a carbon material in which lithium ions are absorbed; a positive electrode that is obtained by forming a positive electrode layer on the surface of a collector, the positive electrode layer absorbing ions; and a separator that is interposed between the negative electrode and the positive electrode. The electrolyte contains lithium ions. A coating film that contains lithium carbonate is formed on the surface of the carbon material that is contained in the negative electrode layer.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Keiichi Kondou, Toshiro Kume, Tomohiro Okuzawa