Casing Patents (Class 361/517)
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Patent number: 8638545Abstract: An electrode structure which provides adhesiveness between an aluminum material, as a base material, and a dielectric layer, and adhesiveness between the dielectric layers, and enables a high capacitance, even with a thick dielectric layer. An interposing layer is formed in at least one part of a region of the surface of the aluminum material between the aluminum material and the dielectric layer and includes aluminum and carbon. The dielectric layer includes dielectric particles including valve metal, and an organic substance layer formed on at least one part of a surface of the dielectric particle. A mixture layer of dielectric particles, including the valve metal and a binder, is formed on a surface of the aluminum material, and thereafter, the aluminum material is heated in a state where the aluminum material is placed in a space including a hydrocarbon-containing substance.Type: GrantFiled: January 28, 2013Date of Patent: January 28, 2014Assignee: Toyo Aluminium Kabushiki KaishaInventors: Kunihiko Nakayama, Zenya Ashitaka, Hietoshi Inoue
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Patent number: 8619410Abstract: A solid electrolytic capacitor that contains an anode body formed from an electrically conductive powder and a dielectric coating located over and/or within the anode body is provided. The present inventors have discovered a technique that is believed to substantially improve the uniformity and consistency of the manganese oxide layer. This is accomplished, in part, through the use of a dispersant in the precursor solution that helps minimize the likelihood that the manganese oxide precursor will form droplets upon contacting the surface of the dielectric. Instead, the precursor solution can be better dispersed so that the resulting manganese oxide has a “film-like” configuration and coats at least a portion of the anode in a substantially uniform manner. This improves the quality of the resulting oxide as well as its surface coverage, and thereby enhances the electrical performance of the capacitor.Type: GrantFiled: May 31, 2011Date of Patent: December 31, 2013Assignee: AVX CorporationInventors: Ian Pinwill, David Masheder, Silvie Vilcova, Petr Stojan, Jiri Hurt, Ivan Horacek
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Patent number: 8617740Abstract: In an electrochemical cell including a cathode 7, an anode 6, electrolyte 10, a hollow container 1 accommodating these members, and terminals extending from the inside to the outside of the hollow container 1, the terminals include a plurality of inner terminals 5a formed on the inner surface of the hollow container 1, a cathode outer terminal 5b1 formed on the outer surface of the hollow container 1, and an inner layer wire 5c formed on the inner layer of the hollow container 1 for commonly connecting the plurality of inner terminals 5a to the cathode outer terminal 5b1.Type: GrantFiled: March 13, 2012Date of Patent: December 31, 2013Assignee: Seiko Instruments Inc.Inventors: Hideharu Onodera, Shunji Watanabe, Masaya Kon
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Patent number: 8619408Abstract: 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: GrantFiled: December 15, 2010Date of Patent: December 31, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Gregory J. Sherwood, Jay E. Daley, Mary M. Byron, Eric Stemen, Peter Jay Kuhn
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Patent number: 8605411Abstract: 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: GrantFiled: September 16, 2010Date of Patent: December 10, 2013Assignee: AVX CorporationInventors: Martin Biler, John Galvagni, Dirk H. Dreissig, Zebbie Lynn Sebald, Frantisek Priban
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Patent number: 8599534Abstract: The disclosure relates to electrochemical capacitors. In particular the disclosure relates to asymmetric electrochemical capacitors and methods to improve service life and energy density.Type: GrantFiled: December 11, 2009Date of Patent: December 3, 2013Inventor: Cambis Joseph Farahmandi
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Publication number: 20130294012Abstract: An electrochemical device includes a casing, a storage element, an electrolyte, a wiring, and an adhesive layer. The casing forms a liquid chamber, the liquid chamber having a bottom surface provided with a recess. The storage element is housed in the liquid chamber. The electrolyte is housed in the liquid chamber. The wiring is connected to the recess. The adhesive layer is made of a conductive adhesive filled in the recess and configured to coat the wiring and cause the storage element to adhere to the casing.Type: ApplicationFiled: April 30, 2013Publication date: November 7, 2013Applicant: Taiyo Yuden Co., Ltd.Inventors: Kyotaro MANO, Yuki KAWAI, Naoto HAGIWARA, Katsuei ISHIDA
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Patent number: 8559165Abstract: A solid electrolytic capacitor includes an anode element, a dielectric layer, a solid electrolytic layer, and a cathode layer. The dielectric layer is formed on the anode element. The solid electrolytic layer is formed on the dielectric layer. The cathode layer is formed so as to contact the solid electrolytic layer. The cathode layer is a silver paste layer having an imide-based polymer as a binder resin. A solid electrolytic capacitor that can be improved in characteristics can thus be obtained.Type: GrantFiled: September 19, 2011Date of Patent: October 15, 2013Assignee: SANYO Electric Co., Ltd.Inventor: Keiko Matsuoka
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Patent number: 8553393Abstract: Disclosed is a coin type lithium ion capacitor which includes a positive electrode made of an activated carbon based positive active material and a negative electrode opposite to the positive electrode with a first separator interposed therebetween. The negative electrode includes a graphite electrode including a first current collector and a graphite based negative active material coated onto the first current collector; and a lithium metal member opposite to the graphite electrode with a second separator interposed therebetween and including a second current collector and lithium metal coated on the second current collector, in which lithium ions of the lithium metal move from the lithium metal to the positive electrode through the graphite electrode during discharge and are carried in the graphite electrode from the positive electrode during charge.Type: GrantFiled: September 28, 2011Date of Patent: October 8, 2013Assignee: Korea Institute of Energy ResearchInventors: Chang Soo Jin, Wook Ahn, Kyoung Hee Shin, Kyu Nam Jung, Bum Suk Lee, Myung Seok Jeon
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Patent number: 8553392Abstract: Provided is an electric double-layer capacitor and the like, which may be easily manufactured. In a recessed container (2) constituting a package of an electric double-layer capacitor (1), a step portion (4) is formed. With this, the recessed container (2) has two parallel bottom surfaces which are not provided in the same plane, that is, a first bottom surface constituting a bottom portion of a recessed portion (13) and a second bottom surface constituting an upper surface of the step portion (4). The first bottom surface and the second bottom surface respectively have metallic layers (11, 9) formed thereon, which pass through the recessed container (2) toward an outside to respectively connect to terminals (12, 10). Electrodes (6, 5) are respectively connected to the upper surfaces of the metallic layers (11, 9).Type: GrantFiled: July 15, 2011Date of Patent: October 8, 2013Assignee: Seiko Instruments Inc.Inventors: Tsuneaki Tamachi, Ryo Sato, Isamu Shinoda, Shunji Watanabe
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Publication number: 20130236770Abstract: An electric storage device includes an electrode assembly and an outer case. The electrode assembly has at least one convex portion. The outer case accommodates the electrode assembly and has an inner wall with a recess in portion thereof opposite the at least one convex portion of the electrode assembly.Type: ApplicationFiled: March 12, 2013Publication date: September 12, 2013Applicant: GS Yuasa International Ltd.Inventor: Hideki MASUDA
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Patent number: 8520367Abstract: Provided are a method of manufacturing a lithium ion capacitor and a lithium ion capacitor manufactured using the same. The method of manufacturing a lithium ion capacitor includes forming a lithium thin film on one surface of a separator; making the lithium thin film in contact with an anode, and alternately disposing the anode and a cathode with the separator interposed therebetween to form an electrode cell; and enclosing the electrode cell and an electrolyte into a housing, and pre-doping lithium ions to the anode from the lithium thin film.Type: GrantFiled: February 1, 2011Date of Patent: August 27, 2013Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Kyun Lee, Ji Sung Cho, Bae Kyun Kim, Hong Seok Min, Dong Hyeok Choi
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Patent number: 8520365Abstract: The present invention relates generally to charge storage devices with at least one electrode having combined double layer supercapacitor, electrochemical supercapacitor and/or battery functionalities. In some embodiments, the electrode, may be composed of an ECS material, a highly-structured DLS material and a less-structured DLS material.Type: GrantFiled: April 18, 2011Date of Patent: August 27, 2013Assignee: Amperics Inc.Inventors: George Gruner, Ian O'Connor
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Publication number: 20130209859Abstract: An electric storage element includes: an electrode body having a positive electrode and a negative electrode; a case for housing the electrode body; an insulating member arranged in the case to insulate the electrode body from the case; and a spacer arranged in the case. The spacer is arranged between the insulating member and the electrode body.Type: ApplicationFiled: February 12, 2013Publication date: August 15, 2013Applicant: GS YUASA INTERNATIONAL LTD.Inventor: GS YUASA INTERNATIONAL LTD.
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Publication number: 20130209850Abstract: A plurality of cell units is stacked. A pressurizing mechanism applies a compressive force in a stacked direction to a stacked structure of the cell units. Each of the cell units includes a power storage cell, and a frame body which supports the power storage cell. The frame body includes a positioning portion which restrains a relative position with respect to a direction perpendicular to the stacked direction of the frame bodies adjacent in the stacked direction. The positioning portion positions the frame bodies with respect to the direction perpendicular to the stacked direction. A margin is kept in a direction in which the frame bodies are closer in the stacked direction in a state where the compressive force is applied to the stacked structure due to pressurization through the pressurizing mechanism.Type: ApplicationFiled: February 12, 2013Publication date: August 15, 2013Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: SUMITOMO HEAVY INDUSTRIES, LTD.
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Publication number: 20130201606Abstract: The present invention has as its object the provision of a lithium ion capacitor having high capacity and high output characteristics and also having high safety that allows suppression of an increase in surface temperature even when an internal short circuit accidentally occurs. The lithium ion capacitor of the present invention comprises: a lithium ion capacitor element formed by overlaying a positive electrode sheet and a negative electrode sheet on top of one another with a separator interposed therebetween; an electrolyte solution; and an outer container that contains the lithium ion capacitor element and the electrolyte solution, a porous layer is formed on an outer surface of the lithium ion capacitor element, and the lithium ion capacitor satisfies following relational expressions (1) and (2): 35?T×R/C??relational expression (1): 0.Type: ApplicationFiled: June 28, 2011Publication date: August 8, 2013Applicant: JM Energy CorporationInventors: Kenji Nansaka, Makoto Taguchi
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Publication number: 20130202951Abstract: An electrochemical device which is free from deterioration of properties due to a process of joining a rigid case and a conductive lid is provided. A welded part PP of a conductive lid 12 and a welded frame member 11d are joined each other by laser welding. A weld bead for joining the welded part PP and the welded frame member 11d is not exposed to an internal space of a rigid package 10; therefore, fused material, the coagulum thereof, or the like created during laser welding are prevented from entering into the internal space of the rigid package 10.Type: ApplicationFiled: June 24, 2011Publication date: August 8, 2013Inventors: Yuki Kawai, Kyotaro Goto
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Patent number: 8503163Abstract: The electrolytic capacitor includes two chemically processed anode foils, two cathode foils, four separator sheets, four lead tab terminals, two anode leads and two cathode leads. The two chemically processed anode foils, two cathode foils and four separator sheets are arranged alternately and rolled, to form a capacitor element. Two lead tab terminals are connected to the two chemically processed anode foils, respectively, and the remaining two lead tab terminals are connected to two cathode foils, respectively. The two anode leads are connected to two lead tab terminals, respectively, and the two cathode leads are connected to two lead tab terminals, respectively. As a result, equivalent series resistance can stably be reduced.Type: GrantFiled: December 14, 2009Date of Patent: August 6, 2013Assignees: SANYO Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.Inventors: Kazumasa Fujimoto, Satoshi Aikawa
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Patent number: 8503164Abstract: 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: GrantFiled: December 15, 2010Date of Patent: August 6, 2013Assignee: Cardiac Pacemakers, Inc.Inventors: Gregory J. Sherwood, Jay E. Daley, Mary M. Byron, Eric Stemen, Peter Jay Kuhn
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Patent number: 8503161Abstract: This invention provides a micro-supercapacitor with high energy density and high power density. In some variations, carbon nanostructures, such as carbon nanotubes, coated with a metal oxide, such as ruthenium oxide, are grown in a supercapacitor cavity that contains no separator. A lid is bonded to the cavity using a bonding process to form a hermetic seal. These micro-supercapacitors may be fabricated from silicon-on-insulator wafers according to the disclosed methods. An exemplary micro-supercapacitor is cubic with a length of about 50-100 ?m. The absence of a separator translates to higher energy storage volume and less wasted space within the supercapacitor cell. The energy density of the micro-supercapacitor may exceed 150 J/cm3 and the peak output power density may be in the range of about 2-20 W/cm3, in various embodiments.Type: GrantFiled: March 23, 2011Date of Patent: August 6, 2013Assignee: HRL Laboratories, LLCInventors: David T. Chang, Pamela R. Patterson, Ping Liu
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Patent number: 8503166Abstract: A solid electrolytic capacitor includes a capacitor element, an anode terminal, and a cathode terminal. The capacitor element includes an anode body, and an anode member buried in the anode body. The anode member includes first and second anode components. At least a lower end portion of the first anode component is exposed at a lower surface of the anode body. The second anode component communicates with the first anode component and extends inside the anode body. The second anode component has a width greater than the width of the first anode component at least in a direction along the lower surface of the anode body. The anode terminal is electrically connected to the lower end portion of the first anode component. The cathode terminal is electrically connected to a cathode layer of the capacitor element at a position below the lower surface of the anode body.Type: GrantFiled: December 28, 2011Date of Patent: August 6, 2013Assignee: SANYO Electric Co., Ltd.Inventor: Kazuyoshi Murata
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Patent number: 8493711Abstract: An electrode material is created by forming a thin conformal coating of metal oxide on a highly porous monolithic carbon structure. The highly porous carbon structure performs a role in the synthesis of the oxide coating and in providing a three-dimensional, electronically conductive substrate supporting the thin coating of metal oxide. The metal oxide includes one or more metal oxides. The electrode material, a process for producing said electrode material, an electrochemical capacitor and an electrochemical secondary (rechargeable) battery using said electrode material is disclosed.Type: GrantFiled: July 25, 2011Date of Patent: July 23, 2013Inventor: Fraser W. Seymour
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Publication number: 20130183575Abstract: An electrochemical device which can keep a conductive lid properly joined to a rigid case is provided. A conductive lid 12 has a reinforcement part RP inside of a ring-shaped welded part PP. The welded part PP of the conductive lid 12 and the welded frame member 11d of a rigid case 11 are joined to each other by welding. Even if stress of risen internal pressure due to reflow soldering or the like concentrates at the interface between the rigid case 11 and the conductive lid 12, the reinforcement part RP relieves the stress.Type: ApplicationFiled: June 24, 2011Publication date: July 18, 2013Applicant: TAIYO YUDEN CO LTDInventors: Kyotaro Goto, Yuki Kawai
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Patent number: 8465555Abstract: The present subject matter includes a method of producing an apparatus for use in a patient, the method including etching an anode foil, anodizing the anode foil, assembling the anode foil, at least one cathode foil and one or more separators into a capacitor stack adapted to deliver from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume at a voltage of between about 465 volts to about 620 volts, inserting the stack into a capacitor case, inserting the capacitor case into a device housing adapted for implant in a patient, connecting the capacitor to a component and sealing the device housing.Type: GrantFiled: February 27, 2012Date of Patent: June 18, 2013Assignee: Cardiac Pacemakers, Inc.Inventor: Gregory J. Sherwood
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Patent number: 8456801Abstract: A hybrid capacitor includes an electrically non-conductive rigid or semi-rigid porous honeycomb structure having cells extending along a common direction, the cells having a plurality of cross-sectional shapes. The honeycomb structure is desirably formed of a material that is stable at temperatures of 300° or more, such that high temperature processing can be used to help ensure high purity of the final product. The material of the structure may desirably be an oxide or non-oxide ceramic, such as cordierite, silicon nitride, alumina, aluminum titanate, zircon, glass, or glass-ceramic. The plurality of shapes of the cells includes larger shapes in which cells are disposed non-galvanic electrodes, with galvanic electrodes disposed in cells of other shapes.Type: GrantFiled: July 24, 2006Date of Patent: June 4, 2013Assignee: Corning IncorporatedInventors: Roy Joseph Bourcier, Kishor Purushottam Gadkaree, Mallanagouda Dyamanagouda Patil, Huan-Hung Sheng, Mark J. Soulliere
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Patent number: 8451586Abstract: A wet electrolytic capacitor that contains an anode and a fluid electrolyte that are positioned within a casing is provided. The capacitor also contains a sealing assembly that employs a bushing having opposing inwardly facing, tapered surfaces between which an orifice is defined. To help inhibit leakage from the orifice, a liquid sealing member is also employed that contains a protrusion having outwardly facing, tapered surfaces that are configured to mate with the inwardly facing surfaces of the bushing. At least one outwardly facing surface of the sealing member is tapered at an angle greater than a respective inwardly facing surface of the bushing.Type: GrantFiled: September 13, 2011Date of Patent: May 28, 2013Assignee: AVX CorporationInventor: Frantisek Priban
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Publication number: 20130120910Abstract: An energy storage module 11 comprises a case 21, a plurality of stacking plates 41, a heat-transferring metal plate 51 and a heat-releasing fin 61. An exposure outlet 23 is provided on the side 21 of the case 22 containing a plurality of energy storage cells 31. The stacking plate 41 having an aperture 42 is located between the plurality of energy storage cells 31 and is latched to another stacking plate 41 to position said plate. The heat-transferring metal plate 51 having a flat plate portion 52 and a bent portion 53 is provided in face-to-face contact with the main face 33 of each cell of the energy storage cells 31. The heat-releasing fin 61 projects from the exposure outlet 23 to the outside of the case 21 and is thermally face-to-face bonded to the bent portion 53 of the heat-transferring metal plate 51 by the insulation sheet 65.Type: ApplicationFiled: July 27, 2011Publication date: May 16, 2013Applicant: FDK CORPORATIONInventor: Katsuhiko Watanabe
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Patent number: 8432664Abstract: A cylindrical sealing member for a capacitor has a circular first plane and a circular second plane placed oppositely to the first plane, and is provided with two lead holes that penetrate the first and second planes. This sealing member for a capacitor contains butyl rubber, and inorganic material oblate particles having flat surfaces. The sealing member includes a first portion, and a second portion in the vicinity of an outer circumference of the sealing member as well as in the vicinity of the two lead holes. In the first portion, the inorganic material oblate particles are scattered such that flat surfaces thereof are oriented substantially in parallel with the first plane. In the second portion, the inorganic material oblate particles are scattered such that the flat surfaces thereof are oriented substantially perpendicularly to the first plane.Type: GrantFiled: August 8, 2011Date of Patent: April 30, 2013Assignee: Panasonic CorporationInventors: Kiyoshi Hirota, Yuichiro Tsubaki, Katsufumi Shimanaka
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Patent number: 8427811Abstract: An electrical double-layer capacitor electrode with excellent capacitance characteristics is obtained together with a manufacturing method therefor. Paper-molded sheet 2 of carbon nanotubes is integrated with etched foil 1 constituting a collector, by means of bumps and indentations 1a formed on the surface of etched foil 1 to prepare an electrical double-layer capacitor electrode. Alternatively, carbon nanotubes 4 grown around core catalyst particles on substrate 3 are integrated with etched foil 1 by means of bumps and indentations 1a formed on the surface of etched foil 1 to prepare an electrical double-layer capacitor electrode. To manufacture these electrodes, this carbon nanotube sheet 2 or substrate 3 with carbon nanotubes grown thereon is laid over bumps and indentations 1a on the surface of etched foil 1, and the sheet or substrate and the foil are pressed under 0.01 to 100 t/cm2 of pressure to integrate the carbon nanotubes with the etched foil.Type: GrantFiled: September 29, 2008Date of Patent: April 23, 2013Assignee: Nippon Chemi-Con CorporationInventors: Kenji Machida, Shunzo Suematsu, Kenji Tamamitsu
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Patent number: 8422199Abstract: The present invention provides an electrolyte highly reliable in charge and discharge in a high voltage condition, and an electrochemical capacitor using the same. The electrolyte of the present invention includes a solvent, an electrolyte salt having an anion having a perfluoro alkyl group represented by a following composition formula, and an acid inducing substance having a fluorine atom for an anion, characterized in that the weight ratio of the acid inducing substance is in a range of 0.0001 to 2.0 wt %: MX+[Q(Rf)yFz]X? (wherein Q is a group 13 or group 15 element in the periodic table, Rf is a perfluoro alkyl group (CnF2n+1), n is a natural number, 1?y<6, 1?z<6, MX+ is a cation of Xth valence, and X is a natural number from 1 to 3).Type: GrantFiled: February 15, 2010Date of Patent: April 16, 2013Assignee: Panasonic CorporationInventors: Shotaro Doi, Atsuro Shirakami, Kiyohiro Isii, Susumu Nomoto, Hideki Shimamoto
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Patent number: 8422202Abstract: A method for manufacturing a capacitor that enables a capacitor having a high degree of conductivity and minimal leakage current to be obtained with a high level of productivity. A method for manufacturing a capacitor (10) according to the present invention includes an electrolytic oxidation step of forming a dielectric layer (12) by electrolytically oxidizing the surface of an anode (11) composed of a valve metal, a cathode positioning step of positioning a cathode (13) composed of a conductor in an opposing arrangement on the surface of the dielectric layer (12), a solid electrolyte formation step of forming a solid electrolyte layer (14) between the dielectric layer (12) and the cathode (13) using a conductive polymer solution containing a ?-conjugated conductive polymer and a polyanion, and an application step of performing a treatment in which a direct current voltage is applied between the anode (11) and the cathode (13).Type: GrantFiled: April 17, 2009Date of Patent: April 16, 2013Assignee: Shin-Etsu Polymer Co., Ltd.Inventors: Tailu Ning, Michiko Shingai
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Publication number: 20130065103Abstract: An upper rotating body is rotatably attached to a lower traveling body. An electricity storage module is mounted on the upper rotating body. The electricity storage module includes a plurality of electricity storage cells each having at least a pair of electrodes led out from the edges of a plate-like portion. The electricity storage cells are stacked in the thickness direction of the plate-like portions, and are connected in series by bringing the electrodes of the electricity storage cells adjacent to each other in the stack direction into contact with each other. At least some of the electrode pairs, each of which is comprised of a pair of electrodes in contact with each other, each have a bridge structure having the electrodes bent in a direction in which the electrodes approach each other and also having the outer surface of one electrode and the inner surface of the other electrode in contact with each other.Type: ApplicationFiled: May 26, 2011Publication date: March 14, 2013Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Masanori Yumura
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Patent number: 8390989Abstract: A solid electrolytic capacitor that is able to maintain a high capacitance and low ESR, and also exhibits a high degree of heat resistance. The solid electrolytic capacitor 10 comprises at least an anode body 11 composed of a porous material, a dielectric layer 12 formed on the surface of the anode body 11, and a cathode body 13b, wherein the solid electrolytic capacitor has a solid electrolyte layer 13a formed in contact with the dielectric layer 12, the solid electrolyte layer 13a comprises at least a hydroxy compound having three or more hydroxyl groups, and the hydroxy compound has a melting point of not less than 170° C.Type: GrantFiled: October 5, 2010Date of Patent: March 5, 2013Assignee: Shin-Etsu Polymer Co., Ltd.Inventors: Tailu Ning, Michiko Shingai, Sachiko Ode
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Patent number: 8390988Abstract: The disclosure describes a monomer having the general formula (I): in which R1 and R2 stand, independently of one another, for hydrogen, for an optionally substituted C1-C20-alkyl group or C1-C20-oxyalkyl group, optionally interrupted by 1 to 5 oxygen atoms and/or sulfur atoms, or jointly for an optionally substituted C1-C20-dioxyalkylene group or C6-C20-dioxyarylene group. The monomer has a color in a range of a Hazen color number determined according to test method described herein of at least 20 to a Gardner color number determined according to test method described herein of not more than 5. The present invention also relates to a method for the manufacture of a capacitor, a capacitor obtained by this method and to the use of a monomer.Type: GrantFiled: September 30, 2010Date of Patent: March 5, 2013Assignee: Heraeus Precious Metals GmbH & Co. KGInventors: Udo Merker, Klaus Wussow, Knud Reuter, Andreas Elschner
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Patent number: 8385051Abstract: Provided are an electrode structure which is excellent in adhesiveness between an aluminum material as a base material and a dielectric layer and adhesiveness between the dielectric layers and allows a higher capacitance than the conventional one to be obtained, even when a thickness of the dielectric layer is thick; a method for manufacturing the above-mentioned electrode structure; and a capacitor and a battery, each of which includes the above-mentioned electrode structure. An electrode structure comprises: an aluminum material; a dielectric layer formed on a surface of the aluminum material; and an interposing layer formed in at least one part of a region of the surface of the aluminum material between the aluminum material and the dielectric layer and including aluminum and carbon, the dielectric layer includes dielectric particles including valve metal, and an organic substance layer is formed on at least one part of a surface of the dielectric particle.Type: GrantFiled: March 4, 2010Date of Patent: February 26, 2013Assignee: Toyo Aluminium Kabushiki KaishaInventors: Kunihiko Nakayama, Zenya Ashitaka, Hidetoshi Inoue
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Patent number: 8373972Abstract: A solid electrolytic capacitor with a protective structure, which includes stacked capacitor elements electrically connected to the positive and negative terminal. A packaging material such as synthetic resin is used to encapsulate the capacitor elements, the positive terminal, and the negative terminal. Before packaging, a protective layer is formed by a colloid material, which covers the main body of the capacitor that includes the capacitor elements, the positive terminal, and the negative terminal. The protective layer provides a better seal and relieves the external pressure exerting on the capacitor during the packaging process. The protection prevents structural damage to the capacitor's main body while reducing the risk of short-circuits and excessive current leakage.Type: GrantFiled: October 20, 2010Date of Patent: February 12, 2013Assignee: Apaq Technology Co., Ltd.Inventors: Ching-Feng Lin, Chi-Hao Chiu, Wen-Yen Huang, Chun-Chia Huang
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Patent number: 8369066Abstract: A lamellar stacked solid electrolytic capacitor includes a plurality of capacitor units, a substrate unit and a package unit. Each capacitor unit is composed of a negative foil, an isolation paper with conductive polymer substance, a positive foil, an isolation paper with conductive polymer substance and a negative foil that are stacked onto each other in sequence, the positive foils of the capacitor units are electrically connected to each other, the negative foils of the capacitor units are electrically connected to each other, and the positive foils and the negative foils are insulated from each other. The substrate unit has a positive guiding substrate electrically connected to the positive foils of the capacitor units and a negative guiding substrate electrically connected to the negative foils of the capacitor units. The package unit covers the capacitor units and one part of the substrate unit.Type: GrantFiled: February 26, 2010Date of Patent: February 5, 2013Assignee: Apaq Technology Co., Ltd.Inventors: Ching-Feng Lin, Yui-Hsin Fran, Chi-Hao Chiu, Ming-Tsung Chen, Cheng-Wei Lai, Chun-Chia Huang
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Patent number: 8345408Abstract: A method for producing a solid electrolytic capacitor, which comprises the steps of: laying a plurality of solid electrolytic capacitor elements in proximity to each other in parallel on a cathode lead portion of a lead frame with a conductive adhesive, and electrically connecting the solid electrolytic capacitor elements to the cathode lead portion so that the conductive adhesive gets into a gap between the solid electrolytic capacitor elements.Type: GrantFiled: September 23, 2010Date of Patent: January 1, 2013Assignee: Showa Denko K.K.Inventor: Kazumi Naito
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Patent number: 8331080Abstract: There are provided an electrolyte for a lithium ion capacitor and a lithium ion capacitor including the same. The electrolyte for a lithium ion capacitor according to the present invention includes: a lithium salt; and a mixing solvent including i) two or more compounds selected from a group consisting of cyclic carbonate compounds, ii) one or more compounds selected from a group consisting of linear carbonate compounds represented by a specified Formula, and iii) one or more compound selected from a group consisting of propionate compound represented by a specified Formula.Type: GrantFiled: November 9, 2010Date of Patent: December 11, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Kyun Lee, Dong Hyeok Choi, Hyun Chul Jung, Bae Kyun Kim
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Patent number: 8325465Abstract: A capacitor is described with an NbO anode. The capacitor has an NbO anode and an NbO anode lead extending from the NbO anode. A dielectric is on the NbO anode and a conductor is on the dielectric.Type: GrantFiled: July 8, 2008Date of Patent: December 4, 2012Assignee: Kemet Electronics CorporationInventors: Yuri Freeman, Philip M. Lessner, Jeffrey Poltorak, Randolph S. Hahn
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Patent number: 8320105Abstract: A both-side pressed terminal is connected as a first anode (cathode) lead tab terminal to an anode (a cathode) foil. A first connection surface of a connection portion of a one-side pressed terminal as a second anode (cathode) lead tab terminal is connected to an inner circumferential surface of the anode (cathode) foil. A position in a radial direction of a lead of the second anode (cathode) lead tab terminal is shifted inward to be in registration with a position in a radial direction of a lead of the first anode (cathode) lead tab terminal. Thus, an electrolytic capacitor free from position displacement of an anode (a cathode) lead tab terminal while maintaining characteristics as an electrolytic capacitor can be obtained.Type: GrantFiled: August 27, 2010Date of Patent: November 27, 2012Assignees: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co., Ltd.Inventor: Kazumasa Fujimoto
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Publication number: 20120293915Abstract: A capacitor includes a plurality of nanochannels formed in a dielectric material. A conductive film is formed over interior surfaces of the nanochannels, and a charge barrier is formed over the conductive film. An electrolytic solution is disposed in the nanochannels. An electrode is coupled to the electrolytic solution in the nanochannels to form the capacitor.Type: ApplicationFiled: July 26, 2012Publication date: November 22, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Richard A. Haight, Stephen M. Rossnagel
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Patent number: 8310813Abstract: An electrolytic capacitor sealer is formed of a modified butyl rubber composition obtained by using an organic peroxide to crosslink a modified butyl rubber composition which has been modified by reacting butyl rubber with a compound (a) having in the molecule a nitroxide free radical that is stable at room temperature even in the presence of oxygen, a radical initiator (b), and a bifunctional or higher radical polymerizable monomer (c), and of a modified butyl rubber composition obtained by compounding a radical polymerizable monomer (c) with a modified butyl rubber composition that has been obtained by reacting butyl rubber with a compound (a) having in the molecule a nitroxide free radical that is stable at room temperature even in the presence of oxygen and a radical initiator (b), and then crosslinking the composition thus obtained with an organic peroxide.Type: GrantFiled: March 31, 2008Date of Patent: November 13, 2012Assignees: Nippon Chemi-Con Corporation, The Yokohama Rubber Co., Ltd.Inventors: Hiroaki Fujita, Kazuhiko Kimura, Masatoshi Iemura, Masashi Ozawa, Makoto Ashiura, Tetsuji Kawazura
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Patent number: 8279579Abstract: Electronic components and electrodes for transforming, storing and shielding devices have ablated femtosecond pulsed laser machined with developed nano structures for substantially increasing surface areas. Storage is multiplied in capacitors and supercapacitors, and small sizes have increased capacity. Supercapacitor heating upon charging and discharging is reduced by femtosecond pulsed laser ablation of inner and outer surfaces of cases. Battery storage capacity and charging time, fuel cell size and capacity, hydrogen generation and storage and seconds are improved by femtosecond pulsed laser machining ablation of electrode surfaces followed by chemical vapor deposition of carbon nano structures.Type: GrantFiled: December 10, 2008Date of Patent: October 2, 2012Inventor: Victor Rivas Alvarez
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Patent number: 8279584Abstract: A capacitor assembly that includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte (e.g., conductive polymer) overlying the dielectric is provided. The anode body is in electrical contact with an anode termination and the solid electrolyte is in electrical contact with a cathode termination. The capacitor element and terminations are encapsulated within a resinous material so that at least a portion of the terminations remain exposed. In addition to enhancing mechanical robustness, the resinous encapsulating material acts in some capacity as a barrier to moisture and oxygen during use, which could otherwise reduce the conductivity of the solid electrolyte and increase ESR. To even further protect the capacitor element, especially at high temperatures, the encapsulated capacitor element is also enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas.Type: GrantFiled: August 12, 2010Date of Patent: October 2, 2012Assignee: AVX CorporationInventor: Ivana Zednickova
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Publication number: 20120237810Abstract: An electric storage device, includes an electrode assembly that includes a positive electrode and a negative electrode each including a current collector provided with an active material layer on a surface thereof except one end, the positive electrode and the negative electrode being wound or stacked with a separator interposed therebetween, wherein one end of one of the positive electrode and the negative electrode on at least one side of the electrode assembly protrudes, as active material layer-unformed parts, from a side end of the remaining electrode different in polarity; a case for housing the electrode assembly with the protruding direction of the one end oriented sideways; and an electrolytic solution being reserved in the case, wherein the active material layer-unformed parts include electrolytic solution-sucking-up layers that are porous and are formed along a direction orthogonal to the protruding direction of the one end.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Applicant: GS Yuasa International, Ltd.Inventor: Takeshi SASAKI
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Patent number: 8259435Abstract: A wet electrolytic capacitor that contains a hermetically sealed lid assembly is disclosed. More specifically, the lid assembly contains a lid (e.g., titanium) that defines an internal orifice. A conductive tube may extend through the orifice that is of a size and shape sufficient to accommodate an anode lead. An insulative material is also provided within the orifice to form a hermetic seal (e.g., glass-to-metal seal), such as between the conductive tube and the lid. The lid assembly also includes a liquid seal that is formed from a sealant material. The liquid seal coats a substantial portion of the lower surface of the lid and hermetic seal to limit contact with any electrolyte that may leak from the casing. To help achieve such surface coverage, the sealant material is generally flowable so that it can be heated during production of the capacitor and flow into small crevices that would otherwise remains uncoated.Type: GrantFiled: November 1, 2010Date of Patent: September 4, 2012Assignee: AVX CorporationInventors: William A. Millman, Ed Jackson, James Steven Bates, John Galvagni
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Patent number: 8259436Abstract: An integrated capacitor assembly that contains at least two solid electrolytic capacitor elements electrically connected to common anode and cathode terminations is provided. The capacitor elements contain an anode, a dielectric coating overlying the anode that is formed by anodic oxidation, and a conductive polymer solid electrolyte overlying the dielectric layer. The capacitor elements are spaced apart from each other a certain distance such that a resinous material can fill the space between the elements. In this manner, the present inventors believe that the resinous material can limit the expansion of the conductive polymer layer to such an extent that it does not substantially delaminate from the capacitor element. In addition to possessing mechanical stability, the capacitor assembly also possesses a combination of good electrical properties, such as low ESR, high capacitance, and a high dielectric breakdown voltage.Type: GrantFiled: August 3, 2010Date of Patent: September 4, 2012Assignee: AVX CorporationInventors: Jan Petrzilek, Miloslav Uher, Lotfi Djebara
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Patent number: 8248759Abstract: A capacitor has a capacitor element, an open-topped case on which terminals joined to a pair of electrode lead sections of the capacitor element are disposed facing each other, and a cover combined with the open surface of the case. Each terminal has a pair of intermediate conductive sections and a pair of terminal sections. The joint has a joint surface to which one of the electrode lead sections of the capacitor element is joined. The intermediate conductive sections are L-shaped, and are extendedly disposed in directions opposite to each other from both ends of the joint. The terminal sections are disposed further extendedly from the intermediate conductive sections and placed symmetrically about the joint.Type: GrantFiled: July 12, 2010Date of Patent: August 21, 2012Assignee: Panasonic CorporationInventors: Masayuki Sato, Yukiyasu Sugihara, Yasuyuki Ito, Nario Niibo
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Patent number: 8248755Abstract: A polyimide resin is provided. The polyimide resin comprises the reaction product of a polyimide resin and an amine comprising a C1-10 hydrocarbon substituted with CN, F, SO2, SO, S, SO3, SO3?, PO, PO2H, PO3H, PO2?, PO3?2, CO, CO2?, CO2H, CONH, CONH2, NHCOHN, OCONH, OCO2, N, NH, NH2, NO2, CSNH, CSNH2, NHCSNH, OTi(OR4)3, or OSi(OR4)3 or combinations of these, wherein R4 is a C1-10 aliphatic or aromatic hydrocarbon. The resin may be used to provide a thin film that in turn, may advantageously be used to form, wholly or in part, articles such as capacitors, sensors, batteries, flexible printed circuit boards, keyboard membranes, motor/transformer insulations, cable wrappings, industrial tapes, interior coverage materials, and the like. In particular, a capacitor comprising the thin film and methods of making the same are also provided.Type: GrantFiled: April 30, 2010Date of Patent: August 21, 2012Assignee: General Electric CompanyInventors: Gary William Yeager, Norberto Silvi, Patricia Chapman Irwin, Robert Colin McTigue