Electrolytic Device Making (e.g., Capacitor) Patents (Class 29/25.03)
  • Publication number: 20140036417
    Abstract: A solid electrolytic capacitor having grooves provided in a valve-acting metal substrate that includes a porous surface part and a non-porous body part, the bottoms of the grooves being non-porous. The valve-acting metal substrate is divided into a plurality of unit regions by the grooves, and define cathode layer formation parts in the porous surface parts for each unit region. A dielectric layer covers the surfaces of the cathode layer formation parts of the valve-acting metal substrate and the grooves between the cathode layer formation parts. A solid electrolyte layer and a cathode extraction layer cover the surface of the dielectric layer, thereby providing a sheet in which a plurality of solid electrolytic capacitor elements are prepared integrally with the grooves interposed therebetween. The sheet is cut at the grooves, and a dielectric layer is formed on the cut surfaces located around the cathode layer formation parts.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Fujimoto, Emi Matsushita, Hitoshi Kuromi, Taro Ueno, Yoshihiro Koshido
  • Patent number: 8644004
    Abstract: A first cathode lead terminal is arranged closer to one end of a cathode foil than a second cathode lead terminal, and a first anode lead terminal is arranged closer to one end of an anode foil than a second anode lead terminal. In a cross-section perpendicular to an axis, a core has a first length along a first straight line passing through the axis and a second length along a second straight line passing through the axis and orthogonal to the first straight line, and the first length is smaller than the second length. When the cathode and the anode foils are together wound around the core from each one end, the first straight line lies between the first cathode lead terminal and the first anode lead terminal and the second straight line lies between the second cathode lead terminal and the second anode lead terminal.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 4, 2014
    Assignees: SANYO Electric Co., Ltd., SAGA Sanyo Industries Co., Ltd.
    Inventor: Tetsuya Kawakubo
  • Patent number: 8644003
    Abstract: A process is provided for producing an electrolytic capacitor element that can uniformly form a highly electrically conductive polymer having a nano thickness level on a nano porous anode element substrate and suitable for use in high-capacitance electrolytic capacitors used in emergency power supplies and backup power supplies in electronic equipment. An oxide film and an electrically conductive polymer film are formed by pulsed constant current electrolysis of a monomer for an electrically conductive polymer and a nanoporous valve action metal in an electrolysis solution comprising an ionic liquid.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: February 4, 2014
    Assignee: National University Corporation, Tokyo University of Agriculture and Technology
    Inventors: Katsuhiko Naoi, Kenji Machida
  • Publication number: 20140022703
    Abstract: A capacitor whose electrical properties can be stable under a variety of different conditions is provided. The solid electrolyte of the capacitor is formed from a combination of an in situ polymerized conductive polymer and a hydroxy-functional nonionic polymer. One benefit of such an in situ polymerized conductive polymer is that it does not require the use of polymeric counterions (e.g., polystyrenesulfonic anion) to compensate for charge, as with conventional particle dispersions, which tend to result in ionic polarization and instable electrical properties, particularly at the low temperatures noted above. Further, it is believed that hydroxy-functional nonionic polymers can improve the degree of contact between the polymer and the surface of the internal dielectric, which unexpectedly increases the capacitance performance and reduces ESR.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 23, 2014
    Inventors: Jan Petrzilek, Martin Biler
  • Patent number: 8631549
    Abstract: A method for manufacturing a laminated ceramic capacitor includes a step of preparing a laminate which has a first principal surface, a second principal surface, a first end surface, a second end surface, a first side surface, and a second side surface and which includes insulating layers and internal electrodes having end portions exposed at the first or second end surface; a step of forming external electrodes on the first and second end surfaces such that plating deposits are formed on the exposed end portions of the internal electrodes so as to be connected to each other; and a step of forming thick end electrodes electrically connected to the external electrodes such that a conductive paste is applied onto edge portions of the first and second principal surfaces and first and second side surfaces of the laminate and then baked.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: January 21, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akihiro Motoki, Kenichi Kawasaki, Makoto Ogawa, Shigeyuki Kuroda, Shunsuke Takeuchi, Hideyuki Kashio
  • Publication number: 20140016246
    Abstract: An electric double layer capacitor comprises first and second electrodes, each comprising respective first and second carbon materials having distinct pore size distributions. A pore volume ratio of the first carbon material is greater than a pore volume ratio of the second carbon material. The pore volume ratio R is defined as R=V1/V, where V1 is a total volume of pores having a pore size of less than 1 nm, and V is a total volume of pores having a pore size greater than 1 nm.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Kamjula Pattabhirami Reddy
  • Publication number: 20140016245
    Abstract: Technologies are generally described for a capacitor device that includes parallel nanotubes. Such a capacitor device may include two parallel electrodes, each of which includes an array of nanotubes that extends from the surface of the respective electrode towards the other electrode. The nanotubes can be substantially parallel to each other and substantially perpendicular to the electrode from which they extend. The space between the electrodes and the nanotubes can be filled with an electrolyte or dielectric material, for example, a solution of an electrolyte solute in a suitable solvent. Such a capacitor device can have high electrode surface area but can avoid pore effects, in comparison to high surface area porous electrodes which do not have interpenetrating electrodes.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 16, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Nicholas S. Bromer
  • Publication number: 20140002957
    Abstract: Technologies are generally described for electrochemical capacitor devices. Some example electrochemical capacitor devices may include a composite electrode that includes an electrode substrate coupled to a polymeric electrochemical layer. The polymeric electrochemical layer may include: a conductive polymer electrically coupled to the electrode substrate; a solid state, ionically conductive electrolyte polymer; and non-conducting cross-links that covalently link the conductive polymer and the electrolyte polymer. Various example electrochemical capacitor devices may be constructed by laminating two of the composite electrodes against opposing sides of an ionically conducting separator membrane, and contacting the composite electrodes and the separator membrane with a liquid electrolyte. Some example electrochemical capacitor devices may display favorable performance such as symmetric charge storage, non-Faradic charge storage, and/or similar or greater capacity compared to carbon based systems.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 2, 2014
    Applicant: Emprie Technology Development LLC
    Inventor: Vincenzo Casasanta, III
  • Publication number: 20130342955
    Abstract: A semiconductor structure may implement a metal-oxide-metal capacitor. When layer design rules change from one layer to the next, the structure may change the direction of the interleaved plates of the capacitor. For example, when the metallization width or spacing design rules change from layer M3 to layer M4, the structure may run the capacitor traces in different directions (e.g., orthogonal to one another) on M3 as compared to M4. Among the layers that adhere to the same design rules, for example layers M1, M2, and M3, the structure may run the capacitor traces in the same direction in each of the layers M1, M2, and M3. In this way, the capacitor traces overlap to large extent without misalignment on layers that have the same design rules, and the structure avoids misalignment of the capacitor traces when the design rules change.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: Broadcom Corporation
    Inventors: Jiong Zhang, Joseph King, Akira Ito
  • Publication number: 20130342963
    Abstract: The arrangement for supercapacitor device comprises an electrode (1) provided with an electrically conductive element (4). It also comprises a separator element (3) fixed against a first face (4a) of the electrically conductive element (4), the arrangement being perforated with a plurality of through holes (5) which pass through both the electrically conductive element (4) and the separator element (3). The perforated separator element (3) forms a membrane that is both electrically insulating and porous to ions of an electrolyte of the supercapacitor device. The electrically conductive element (4) of the electrode (1) being perforated, the equivalent surface area of the electrodes of the supercapacitor device is dependent on the number of holes made and on their depth.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: Pascal Besesty, Gerard Bidan, Emmanuel Hadji
  • Publication number: 20130343027
    Abstract: A method of forming a stacked electronic component, and an electronic component formed by the method wherein the method includes: providing a multiplicity of electronic components wherein each electronic component comprises a first external termination and a second external termination; providing a first lead frame plate and a second lead frame plate wherein the first lead frame plate and the second lead frame plate comprises barbs and leads; providing a molded case comprising a cavity and a bottom; and forming a sandwich of electronic components in an array between the first lead frame plate and the second lead frame plate with the barbs protruding towards the electronic components and the leads extending through the bottom.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: KEMET ELECTRONICS CORPORATION
    Inventors: Maurice Perea, Allen Hill, Reggie Phillips
  • Publication number: 20130342966
    Abstract: To provide a solid electrolytic capacitor capable of high performance, the capacitor including: an anode element made of tantalum or niobium; a dielectric film disposed on the anode element; and a solid electrolytic layer disposed on the dielectric film, the dielectric film including: a first dielectric film made of an oxide of the tantalum or niobium, formed on a surface of the anode element; and a second dielectric film made of a composite metal oxide having a perovskite structure, formed on the first dielectric film.
    Type: Application
    Filed: March 8, 2012
    Publication date: December 26, 2013
    Applicants: SAGA SANYO INDUSTRIES CO., LTD., SANYO ELECTRIC CO., LTD.
    Inventor: Kazutoyo Horio
  • Publication number: 20130335885
    Abstract: The invention relates to electrical engineering. The multi-element electrochemical capacitor of this invention comprises at least one layer of electrical insulation film with alternating opposite-polarity electrode films placed thereon in succession and interspaced by a porous ion-permeable separator, coiled into a roll. Each electrode sheet is a substrate of nonwoven polymer material at a high pore ratio, with at least one electrode in the form of an electrochemically active layer attached to one side or both sides thereof, or embedded within the same. The capacitor also comprises contact electrodes.
    Type: Application
    Filed: April 19, 2011
    Publication date: December 19, 2013
    Inventors: Yuriy Midhatovich Ginatulin, Andrey Viktorovich Desyatov, Anton Vladimirovich Asseyev, Aleksandr Petruvich Kubyshkin, Sergey Ivanovich Sirotin, Lyubov Vladimirovna Bulibekova, Lyubov Densunovna Li
  • Patent number: 8607424
    Abstract: A method and apparatus for a reverse metal-insulator-metal (MIM) capacitor. The apparatus includes a lower metal layer, a bottom electrode, and an upper metal layer. The lower metal layer is disposed above a substrate layer. The bottom electrode is disposed above the lower metal layer and coupled to the lower metal layer. The upper metal layer is disposed above the bottom electrode. The upper metal layer comprises a top electrode of a metal-insulator-metal (MIM) capacitor.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: December 17, 2013
    Assignee: Cypress Semiconductor Corp.
    Inventors: Vladimir Korobov, Oliver Pohland
  • Publication number: 20130329334
    Abstract: In a ceramic electronic component, a first internal electrode includes a first opposed section and a first extraction section. The first opposed section is opposed to a second internal electrode with a ceramic layer interposed therebetween. The first extraction section is located closer to a first end surface than the first opposed section. The first extraction section is connected to a first external electrode. The number of cross-linked sections per unit area in the first extraction section is less than the number of cross-linked sections per unit area in the first opposed section.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 12, 2013
    Inventors: Takashi HIRAMATSU, Kunihiko HAMADA
  • Publication number: 20130326849
    Abstract: A fluid dispersion obtained by mixing oxide particles and water is sprayed to a raw aluminum foil from a direction opposite to a travelling direction of the raw aluminum foil while the raw aluminum foil is allowed to travel. In this way, a roll-pressed mark of the raw aluminum foil is eliminated, and thus aluminum foil for aluminum electrolytic capacitor electrode is produced. Pyramidal-shaped recesses each having an acute angle tip are present all over a surface of the aluminum foil.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicant: Panasonic Corporation
    Inventors: Masami Tsubaki, Mitsuhisa Yoshimura, Hayato Kato, Katsuyoshi Shingu, Tatsushi Ota, Kazuo Fujiwara
  • Patent number: 8605411
    Abstract: A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, an electrolyte, and a cathode containing a metal substrate that is abrasive blasted is provided. Abrasive blasting may accomplish a variety of different purposes. For example, it may result in a surface that is substantially uniform and macroscopically smooth, thereby increasing the consistency of conductive coatings formed thereon. While possessing a certain degree of smoothness, the abrasive blasted surface is nevertheless micro-roughened so that it contains a plurality of pits. The pits provide an increased surface area, thereby allowing for increased cathode capacitance for a given size and/or capacitors with a reduced size for a given capacitance. A conductive coating that contains a substituted polythiophene is disposed on the micro-roughened surface.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: December 10, 2013
    Assignee: AVX Corporation
    Inventors: Martin Biler, John Galvagni, Dirk H. Dreissig, Zebbie Lynn Sebald, Frantisek Priban
  • Patent number: 8605410
    Abstract: To provide a thin-film capacitor capable of improving the stability of electric connection between an internal electrode layer and a connection electrode. The thin-film capacitor comprises: two or more dielectric layers deposited above a base electrode; an internal electrode layer being deposited between the dielectric layers and having a projecting portion which projects from the dielectric layer when seen from a laminating direction; and a connection electrode electrically connected to the internal electrode layer via at least a part of a surface and an end face of the internal electrode layer included in the projecting portion, wherein a ratio L/t between a projection amount L of the projecting portion of the internal electrode layer with respect to the dielectric layer and a thickness t of the internal electrode layer is 0.5 to 120.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: December 10, 2013
    Assignee: TDK Corporation
    Inventors: Yasunobu Oikawa, Yoshihiko Yano
  • Publication number: 20130318779
    Abstract: The invention relates to a method for sealing an impregnation opening of an energy storage assembly including a housing, the opening (24) being provided in one of the walls of the housing and having an outer aperture (24E) and an inner aperture (24I), the method comprising: a step of inserting, into the opening through the outer aperture, at least one end portion of a head of a tool that is rotated in a direction corresponding to the axis of the opening, in order to heat an area of the housing in the vicinity of the opening, the head including at least a first cross-section at the base thereof, and a second cross-section that is smaller than the first cross-section at the end thereof; once the area is heated, a step of translating the tool in the direction of the inner aperture so as to move the material in the direction of the inner aperture and to seal the opening by means of the resolidification of the material.
    Type: Application
    Filed: February 10, 2012
    Publication date: December 5, 2013
    Inventor: Erwan Vigneras
  • Publication number: 20130321986
    Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body and a relatively large width and/or thickness anode lead tape is provided. The tape is electrically connected to the anode body for connection to an anode termination. Further, the tape has a width that is at least about 20% of the width of the anode body to improve the points of contact between the anode body and tape to reduce ESR. A portion of the tape extends from a surface of the anode body in a longitudinal direction. At least one notch can be formed in the portion of the tape that extends from the anode body. The notch can be formed via a laser or by cutting, punching, or sawing and can serve as the point of electrical connection between the anode termination and the lead tape.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 5, 2013
    Applicant: AVX CORPORATION
    Inventors: Lotfi Djebara, Pavel Bosak, Ludek Kubes
  • Patent number: 8597376
    Abstract: Provided are a porous valve metal thin film having a great surface area, a method for the production thereof, and a thin film capacitor having a great capacity density utilizing the thin film as an anode. The porous valve metal thin film is produced by preparing a thin film in which a valve metal and a hetero-phase component have a particle diameter within a range of from 1 nm to 1 ?m and the valve metal and the hetero-phase component are uniformly distributed, subjecting the thin film to a heat treatment so as to adjust the particle diameter and to appropriately sinter the film, and removing the hetero-phase portion.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 3, 2013
    Assignee: Sumitomo Metal Mining Co., Ltd
    Inventors: Toshiyuki Osako, Tetsufumi Komukai
  • Publication number: 20130314845
    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.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Applicant: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, John E. McConnell, Robert Ramsbottom, Philip M. Lessner, Randolph S. Hahn, John Bultitude
  • Patent number: 8591601
    Abstract: A method of making an active electrode material is provided. Activated carbon having between about 70 and 98 percent microporous activated carbon particles of a total amount of activated carbon by weight and between about 2 and 30 percent mesoporous activated carbon particles of the total amount of activated carbon by weight is provided. Binder is provided. The activated carbon and the binder is mixed to form an active electrode material mixture. In some implementations, a method of making an electrode film includes forming a film of active electrode material comprising activated carbon having between about 70 and 98 percent microporous activated carbon particles of a total amount of activated carbon by weight and between about 2 and 30 percent mesoporous activated carbon particles of the total amount of activated carbon by weight. The method further includes bonding the film to a current collector to form an electrode film.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: November 26, 2013
    Assignee: Maxwell Technologies, Inc.
    Inventors: Linda Zhong, Xiaomei Xi
  • Patent number: 8591600
    Abstract: A method for fabricating electrode structures within a honeycomb substrate having a plurality of elongated channels is provided that is particularly adaptable for producing an ultracapacitor. In this method, the nozzle of a co-extrusion device simultaneously feeds a current collector along a central axis of one of the channels while simultaneously injecting a paste containing an electrode material so that the interior of the channel becomes completely filled with electrode paste at the same rate that the current collector is fed. Such co-extrusion as performed simultaneously at both sides of the ceramic substrate to rapidly form electrode structures within substantially all the channels of the substrate. The resulting ultracapacitor is capable of storing large amounts of electrical energy per unit volume in a structure which is relatively quick and easy to manufacture.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: November 26, 2013
    Assignee: Corning Incorporated
    Inventors: William James Miller, Huan-Hung Sheng
  • Publication number: 20130309539
    Abstract: A method for producing an electric storage device having a bus bar and an electric storage element equipped with an external terminal includes the steps of: arranging the electric storage element having the external terminal, positioning a resin member having either one of a receiving portion or a projection relative to the electric storage element, arranging the bus bar having the other one of the receiving portion or the projection on the external terminal, connecting the bus bar to the external terminal, and inserting the projection into the receiving portion in the step of arranging the bus bar.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 21, 2013
    Applicant: LITHIUM ENERGY JAPAN
    Inventors: Toshiki YOSHIOKA, Toshiki Kusunoki
  • Publication number: 20130308248
    Abstract: A supercapacitor, in particular an asymmetric supercapacitor, comprising an electrode, wherein the electrode is magnetically modified and comprises MnO2. The electrode can comprise a mixture comprising MnO2 and at least one magnetic material, wherein the magnetic material comprises SmCo5. The supercapacitor can also comprise an aqueous electrolyte having a pH of 5-9. The electrode serves in the asymmetric supercapacitor through pseudocapacitance. Higher capacitance and efficiency can be observed.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 21, 2013
    Applicant: The University of Iowa Research Fundation
    Inventor: The University of Iowa Research Fundation
  • Publication number: 20130305504
    Abstract: Provided is a gang socket with which capacitor elements can be manufactured without contaminating chemical conversion treatment liquids or semiconductor layer forming liquids even when the chemical conversion treatment liquids and semiconductor layer forming liquids are corrosive and with which heat treatment can be carried out without obstacles even when heat treatment is carried out during the manufacture of the capacitor elements. This gang socket (1) is provided with a plurality of conductive socket main units (2) provided with insertion openings (37) and an insulator part (5) forming a plurality of receiving parts (6) that can accommodate at least part of the socket main units (2) and provided with a plurality of small openings (7) connecting to the bottom surface of the receiving parts (6) on a bottom surface (5b). The insulator part (5) is constituted of a material having heat resistance and corrosion resistance.
    Type: Application
    Filed: October 13, 2011
    Publication date: November 21, 2013
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazumi Naito, Masahiro Suzuki
  • Publication number: 20130298363
    Abstract: Manufacturing methods for the formation of positive electrodes and the balancing of Coulombic capacities of positive and negative electrodes for use in a heterogeneous electrochemical capacitor (HES) having a PbO2|H2SO4|C system. Exemplary methods make it possible to manufacture capacitors with both non-formed and pre-formed positive electrodes. Capacitors produced by the exemplary methods may be used, for example, as secondary power sources to level loads of power networks, power electric vehicles, cellular and mobile communications, emergency lighting systems, telecommunications, and solar and wind energy storage devices.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 14, 2013
    Applicant: UNIVERSAL SUPERCAPACITORS LLC
    Inventors: Samvel Kazaryan, Gamir Kharisov, Sergey Litvinenko, Sergey Razumov
  • Publication number: 20130294013
    Abstract: The object of the present invention is to provide a condenser that exhibits excellent conductivity of the solid electrolyte layer, and has a low ESR, a high degree of heat resistance, and a high withstand voltage. A condenser of the present invention includes an anode composed of a valve metal, a dielectric layer formed by oxidation of the surface of the anode, and a solid electrolyte layer formed on the surface of the dielectric layer, wherein the solid electrolyte layer contains a ?-conjugated conductive polymer, a polyanion, and an amide compound.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 7, 2013
    Applicant: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Tailu NING, Kazuyoshi Yoshida, Yasushi Masahiro, Sou Matsubayashi, Rika Abe, Mitsuaki Negishi
  • Patent number: 8574319
    Abstract: A solid electrolytic capacitor is provided that includes a capacitor element having a dielectric coating, a solid electrolyte, and a cathode lead portion formed in order on a surface of an anode portion having an anode lead portion. The cathode lead portion is electrically connected to a cathode terminal by a connecting portion, and the connecting portion is formed of a sintered body of a metal.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 5, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Keiko Matsuoka
  • Publication number: 20130283603
    Abstract: At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.
    Type: Application
    Filed: June 21, 2013
    Publication date: October 31, 2013
    Inventors: Takuya MIWA, Kuniharu Nomoto, Nobuhiro Inoue
  • Publication number: 20130283580
    Abstract: The present invention relates to the method of increasing the working voltage of electrical double layer capacitor with enhanced working voltage, which has electrodes fabricated from porous carbon powder in which the pore sizes and the specific surface are created by extracting the non-carbon atoms from the carbon-rich organic or mineral compounds. The method is performed by step-by-step treatment of supercapacitor with the conditioning voltage (Uc), which is increased gradually up to the working voltage (Uw) by the voltage step (?Uc) which is less or equal to 0.3 V.
    Type: Application
    Filed: October 31, 2011
    Publication date: October 31, 2013
    Applicant: OÜ SKEKETON TECHNOLOGIES
    Inventors: Jaan Leis, Mati Arulepp, Anti Perkson
  • Publication number: 20130286542
    Abstract: This invention provides a method of manufacture of the electrochemical system of the electric double layer prismatic capacitor from electrically connected in parallel of semi-wound packages of micro/mesoporous carbon composite electrode pairs separated by porous cage. According to the method the pre-made carbon film will be covered with a layer of aluminum foil layer using a vacuum deposition method thus forming a current collector of an electrochemical system. Subsequently the pairs of electrodes are formed from a carbon composite electrode which are wounded or flipped to flat packages so that the ends of current collectors protruding from folded packages are joined together in parallel and thereafter the ends of current collectors are connected correspondingly to the positive and negative current terminal of the electric double layer capacitor.
    Type: Application
    Filed: September 5, 2011
    Publication date: October 31, 2013
    Applicant: OÜ SKELETON TECHNOLOGIES
    Inventors: Vello Madiberk, Jaan Leis, Mati Arulepp, Kusta Rumma, Anti Perkson
  • Publication number: 20130279080
    Abstract: A capacitor element includes an anode foil, the first oxide film on a surface of the anode foil, a solid electrolyte layer formed using ?-conjugated conductive polymer dispersing material on the first oxide film, and a cathode foil on the solid electrolyte layer. The cathode foil faces the first oxide film across the solid electrolyte layer. An electrolytic capacitor includes the capacitor element, an anode terminal connected to the anode foil, and a second oxide film on a surface of the anode terminal. The second oxide film provided on the anode terminal has higher water repellency than the first oxide film provided on the anode foil. This electrolytic capacitor can reduce a leakage current.
    Type: Application
    Filed: February 15, 2012
    Publication date: October 24, 2013
    Applicant: Panasonic Corporation
    Inventors: Tatsuji Aoyama, Yuuki Murata, Hiroyuki Matsuura, Hidehiro Sasaki, Kazuyo Saito, Yukiya Shimoyama, Jyunya Kushizaki
  • Publication number: 20130279076
    Abstract: An energy storage device includes a first electrode and a second electrode comprising nanostructures. The nanostructures comprise defects that increase charge storage capabilities of the energy storage device. A method of fabricating an energy storage device includes producing a nanomaterial comprising nanostructures and generating defects in the nanomaterial using an electrophilic or nucleophilic additive for increasing charge storage capability of the nanomaterial.
    Type: Application
    Filed: November 2, 2011
    Publication date: October 24, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Prabhakar R. Bandaru, Mark Hoefer
  • Publication number: 20130279078
    Abstract: A capacitor containing a solid electrolytic capacitor element that includes a sintered porous anode body and an anode lead assembly is provided. The lead assembly is electrically connected to the anode body for connection to an anode termination. The lead assembly contains at least a first lead wire comprising at least one notch that is located on an embedded portion of the first lead wire. The at least one notch can be formed by crimping the lead wire prior to embedding the lead wire within the anode body. The at least one lead wire is embedded within the anode body and extends from a surface of the anode body in a longitudinal direction. The resulting geometry of the lead wire increases the points of contact between the anode body and the lead wire after post-sintering shrinkage of the anode body to improve the electrical capabilities of the solid electrolytic capacitor.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: AVX CORPORATION
    Inventors: Lotfi Djebara, Jiri Kobza
  • Publication number: 20130279077
    Abstract: A capacitor containing a solid electrolytic capacitor element having a porous anode body and an anode lead assembly is provided. At least one wire of the lead assembly is electrically connected to the anode body for connection to an anode termination. The lead assembly contains first and second lead wires embedded within the anode body and extending therefrom in a longitudinal direction. The first and second wires are bonded/fused together during sintering of the anode body (i.e., “sinter bonded”). The bond may be metallurgical, covalent, electrostatic, etc. Sinter bonding of the wires reduces the path length and resistance for current flow within the anode body, thus reducing ESR. This is particularly useful for anode bodies formed from powders of a high specific charge, which tend to shrink away from the wires after sintering. The sinter bonded wires also result in a lead assembly that is more robust and mechanically stable.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: AVX CORPORATION
    Inventors: Lotfi Djebara, Ludek Kubes, Pavel Bosak
  • Patent number: 8562695
    Abstract: A method of manufacturing a solid electrolytic capacitor includes steps (a) to (d). The step (a) forms at least two punched apertures in a metal plate, thereby forming a rung section between adjacent two of the punched apertures, the rung section having surfaces as a pair appearing as a result of formation of the punched apertures. The step (b) cuts the rung section out of the metal plate to form a pad member, the length of the rung section corresponding to a distance between the surfaces being determined to be the height of the pad member. The step (c) mounts the pad member on an anode terminal such that one of the surfaces faces the anode terminal. The step (d) electrically connects an anode section of a capacitor element to the other of the surfaces and electrically connects a cathode section of the capacitor element to the cathode terminal.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 22, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Hayatoshi Ihara
  • Publication number: 20130271090
    Abstract: Embodiments described herein relate to compositions, devices, and methods for storage of energy (e.g., electrical energy). In some cases, devices including polyacetylene-containing polymers are provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 17, 2013
    Inventors: Ian W. Hunter, Timothy M. Swager, Zhengguo Zhu
  • Patent number: 8559163
    Abstract: The present invention relates to a reaction vessel for producing a capacitor element, which is used for forming a semiconductor layer by means of energization on two or more electric conductors each having formed on the surface thereof a dielectric layer simultaneously, by immersing the electric conductors into an electrolyte in the reaction vessel, the vessel comprising two or more negative electrode plates corresponding to the individual electric conductors and two or more constant current sources electrically connected to each of the negative electrode plates; production method for a group of capacitor elements using the reaction vessel and a capacitor using the capacitor element. According to the present invention, a large number of capacitors which each uses a semiconductor layer as one part electrode with a narrow appearance capacitance distribution can be obtained simultaneously.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: October 15, 2013
    Assignee: Showa Denko K. K.
    Inventors: Kazumi Naito, Katutoshi Tamura
  • Publication number: 20130258554
    Abstract: Provided is a solid electrolytic capacitor which retains a high capacitance and a low ESR and has high heat resistance. The solid electrolytic capacitor (10) is obtained by winding a porous anode foil (11) having a dielectric layer formed thereon and a cathode foil (14) together with separators (15) each interposed therebetween, the separators (15) having a solid electrolyte (13) supported thereon. Each layer of the solid electrolyte comprises a conductive composite (a) of a cationized conductive polymer with a polymer anion, a first hydroxy compound (b) having four or more hydroxy groups, and a second hydroxy compound (c) having an amino group and one or more hydroxy groups, the content of the conductive composite (a), in terms of mass proportion, being lower than that of the first hydroxy compound (b) and higher than that of the second hydroxy compound (c).
    Type: Application
    Filed: March 11, 2011
    Publication date: October 3, 2013
    Applicant: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Sachiko Ode, Tailu Ning
  • Publication number: 20130257389
    Abstract: A supercapacitor is provided with a method for fabricating the supercapacitor. The method provides dried hexacyanometallate particles having a chemical formula AmM1xM2y(CN)6.pH2O with a Prussian Blue hexacyanometallate, crystal structure, where A is an alkali or alkaline-earth cation, and M1 and M2 are metals with 2+ or 3+ valance positions. The variable m is in the range of 0.5 to 2, x is in the range of 0.5 to 1.5, y is in the range of 0.5 to 1.5, and p is in the range of 0 to 6. The hexacyanometallate particles are mixed with a binder and electronic conductor powder, to form a cathode comprising AmM1xM2y(CN)6.pH2O. The method also forms an activated carbon anode and a membrane separating the cathode from the anode, permeable to A and A? cations. Finally, an electrolyte is added with a metal salt including A? cations. The electrolyte may be aqueous.
    Type: Application
    Filed: September 4, 2012
    Publication date: October 3, 2013
    Inventors: Yuhao Lu, Sean Andrew Vail, Hidayat Kisdarjono, Jong-Jan Lee
  • Publication number: 20130250486
    Abstract: An improved solid electrolytic capacitor and method of forming a solid electrolytic capacitor is described. The method includes forming an anode comprising a valve metal or conductive oxide of a valve metal wherein an anode lead extension protrudes from the anode. A dielectric is formed on the anode and a cathode layer is formed on the dielectric. The anode, dielectric, and cathode layer are encased in a non-conducting material and the anode lead extension is exposed outside of the encasement at a side surface. A conductive metal layer is adhered to the anode lead extension which allows termination preferably by electrically connecting a preformed solid metal terminal, most preferably an L shaped terminal, to the conductive metal layer at the side surface.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: Kemet Electronics Corporation
    Inventors: Brandon Summey, Jeffrey Poltorak, Philip M. Lessner, Yongjian Qiu, Randolph S. Hahn, David Jacobs, Keith R. Brenneman, Albert K. Harrington, Chris Stolarski
  • Publication number: 20130250484
    Abstract: An energy storage system includes, in an exemplary embodiment, a first current collector having a first surface and a second surface, a first electrode including a plurality of carbon nanotubes on the second surface of the first current collector. The plurality of carbon nanotubes include a polydisulfide applied onto a surface of the plurality of nanotubes. The energy storage system also includes an ionically conductive separator having a first surface and a second surface, with first surface of the ionically conductive separator positioned on the first electrode, a second current collector having a first surface and a second surface, and a second electrode including a plurality of carbon nanotubes positioned between the first surface of the second current collector and the second surface of the ionically conductive separator.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 26, 2013
    Inventor: Patrick John Kinlen
  • Patent number: 8540783
    Abstract: A method of manufacturing a solid electrolytic capacitor includes steps (a) to (e). The steps (a) and (b) provide anode and cathode terminals to an insulating base respectively. The step (c) mounts a capacitor element on the insulating base. The step (d) coats the capacitor element with enclosure resin. The step (e) separates a first region of the insulating base to which the anode and cathode terminals are provided and on which the capacitor element is mounted from a second region of the insulating base which is different from the first region. The step (a) includes a step (a1) forming a first through hole in the insulating base, and a step (a2) plating an inner surface of the first through hole. The step (b) includes a step (b1) forming a second through hole in the insulating base, and a step (b2) plating an inner surface of the second through hole.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: September 24, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yasuko Ibata, Hiroya Nishimoto, Takeshi Takamatsu
  • Publication number: 20130244064
    Abstract: A modular transportable high capacity energy storage unit is disclosed. This feature facilitates discrete power generation whereby end-users can generate electricity from non-fossil fuel sources in the course of their normal daily activities, completely independent of the electricity grid or major generation facilities. The feature also enables electricity to be transported and traded as commodities irrespective of the location of its generation or relevant electricity infrastructure.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 19, 2013
    Inventor: EFFIONG ETUKUDO IBOK
  • Patent number: 8535394
    Abstract: A method for producing a solid electrolyte, which includes the steps of applying a solution containing a five-membered heterocyclic compound as a polymerizable monomer on a substrate surface, and polymerizing the applied monomer to give a solid electrolyte. The monomer-containing solution contains the polymerizable monomer and at least one polymerizable compound selected from a dimer of the monomer and a trimer of the monomer, at a proportion satisfying the equation: A/(B+C)=100-1,000,000 where A: concentration of the polymerizable monomer, B: concentration of the dimmer in terms of the concentration of its monomer, and C: concentration of the trimer in terms of the concentration of its monomer. In another aspect, a method is disclosed wherein a solution of a compound having a thiophene skeletal structure, which solution has a light absorbance of 1.5-10 at 300-340 nm, is applied on a substrate surface and polymerized.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: September 17, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yoshihiro Saida
  • Patent number: 8529641
    Abstract: At least any of a second cathode lead terminal and a second anode lead terminal has such a construction that a lead portion is shifted with respect to a connection portion orthogonally. A first cathode lead terminal is closer to one end of a cathode foil than the second cathode lead terminal and a first anode lead terminal is closer to one end of an anode foil than the second anode lead terminal. A core has first and second lengths along first and second straight lines passing through a core axis, respectively. The first length is smaller than the second length. The cathode and anode foils are wound together around the core from the one end of each of the cathode and anode foils. The second straight line lies between the first cathode and anode lead terminals and the first straight line lies between the second cathode and anode lead terminals.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: September 10, 2013
    Assignees: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co., Ltd.
    Inventor: Tetsuya Kawakubo
  • Patent number: 8529642
    Abstract: An object of the present invention is to provide a solid electrolytic capacitor comprising an anode body composed of a sintered body, in which ESR scarcely increases even after reflow at the time of mounting when compared with that before mounting, and a method for producing the same. Disclosed is a solid electrolytic capacitor comprising an anode body composed of a sintered body, a dielectric layer formed on a surface of the anode body, a semiconductor layer formed on the dielectric layer, wherein the semiconductor layer comprises a layer of a conductive polymer containing a sulfur element and a conductor layer formed on the semiconductor layer, wherein the conductor layer comprises a layer containing silver, wherein the layer containing silver is less than 1.3 ppm by mass in the content of a sulfur element after heat history at 260° C. for 5 seconds.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: September 10, 2013
    Assignee: Showa Denko K.K.
    Inventor: Kazumi Naito
  • Patent number: 8531818
    Abstract: An electric double layer capacitor 200 is configured such that a positive electrode 206, a separator 205, and a negative electrode 207 stacked in this order are contained in a container, and a portion between the positive electrode 206 and the negative electrode 207 is filled with an electrolytic solution. A polar plate of one or each of the positive electrode 206 and the negative electrode 207 includes a current collector 201, 203 and a plurality of electrically-conductive fine fibers 202, 204 formed and standing on a surface of the current collector such that one end of each of the fine fibers is electrically connected to the surface of the current collector. A surface of the polar plate is covered with the separator 205, the surface corresponding to the surface of the current collector. The polar plate and the separator 205 are pressure bonded to be integrated with each other.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: September 10, 2013
    Assignee: Panasonic Corporation
    Inventors: Yasuhiro Hashimoto, Takuma Asari, Hironori Kumagai, Shigeo Hayashi