Anode Type Electrode Patents (Class 361/528)
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Patent number: 12037245Abstract: A graphene dispersion liquid containing graphene dispersed in a dispersion medium is described, in which, in the graphene contained in the dispersion liquid, a proportion of graphene with a size in the plane direction of 500 nm or more and 1 ?m or less is 30% or more on an area basis, and a proportion of graphene with a size in the plane direction of 10 ?m or more and 50 ?m or less is 30% or more on an area basis. The graphene dispersion liquid is in a stable dispersion state and forms a strong conductive path.Type: GrantFiled: October 28, 2019Date of Patent: July 16, 2024Assignee: Toray Industries, Inc.Inventors: Takashi Konishi, Eiichiro Tamaki
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Patent number: 12027322Abstract: An electrolytic capacitor includes a capacitor element, an exterior body covering the capacitor element, an anode terminal electrically connected to an anode body of the capacitor element, and a cathode terminal electrically connected to a cathode portion of the capacitor element. Each of the anode terminal and the cathode terminal includes a connection portion in contact with the capacitor element, a lead-out portion led out from the connection portion to an outer surface of the exterior body, and an external terminal portion disposed along the outer surface of the external body and having an exposed surface exposed from the external body. At least a part of a covered portion of the lead-out portion, the covered portion being covered with the exterior body, has a cross-sectional shape including a chamfered shape corner portion in a cross section parallel to a surface region of the outer surface of the exterior body where the lead-out portion is led out.Type: GrantFiled: August 2, 2023Date of Patent: July 2, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Hidenori Uematsu
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Patent number: 11955294Abstract: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer containing repeating thiophene units of a certain formula.Type: GrantFiled: December 11, 2019Date of Patent: April 9, 2024Assignee: KYOCERA AVX Components CorporationInventors: Miloslav Uher, Kiyofumi Aoki, Pavel Kucharczyk
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Patent number: 11817580Abstract: A main object of the present disclosure is to provide an active material of which capacity properties are excellent. The present disclosure achieves the object by providing an active material to be used for a fluoride ion battery, the active material comprising: a composition represented by M1Nx in which M1 is at least one kind of Cu, Ti, V, Cr, Fe, Mn, Co, Ni, Zn, Nb, In, Sn, Ta, W, and Bi, and x satisfies 0.05?x?3; or a composition represented by M2LnyNz in which M2 is at least one kind of Cu, Ti, V, Cr, Fe, Mn, Co, Ni, Zn, Nb, In, Sn, Ta, W, and Bi, Ln is at least one kind of Sc, Y, and lanthanoid, y satisfies 0.1?y?3, and z satisfies 0.15?z?6.Type: GrantFiled: May 13, 2020Date of Patent: November 14, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takeshi Tojigamori
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Patent number: 11756741Abstract: Various embodiments of an electrical component and a method of forming such component are disclosed. The electrical component includes a substrate having a first major surface, a second major surface, and a cavity disposed in the substrate. The cavity extends between the first major surface and the second major surface. The electrical component also includes an anode electrode that includes a conductive foil layer disposed on the second major surface of the substrate and over the cavity. Tantalum material is disposed within the cavity and includes tantalum particles. A dielectric layer is disposed on the tantalum particles, and an electrolyte cathode layer is disposed on the dielectric layer. The electrical component also includes a cathode electrode disposed over the cavity.Type: GrantFiled: July 6, 2021Date of Patent: September 12, 2023Assignee: Medtronic, Inc.Inventors: Mark R. Boone, Joachim Hossick-Schott, Mark Henschel, Chunho Kim
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Patent number: 11666357Abstract: An enclosure configured to hermetically seal electronics of a surgical instrument therein includes a first casing component defining a first weld deck about a perimeter thereof, a second casing component defining a second weld deck about a perimeter thereof, and an energy director extending from the first weld deck and configured to facilitate ultrasonic welding of the first and second weld decks of the first and second casing components, respectively, with one another to establish a weld seam hermetically sealing the first and second casing components. The first weld deck lies in multiple planes.Type: GrantFiled: September 16, 2019Date of Patent: June 6, 2023Assignee: Covidien LPInventors: Titus Horton, Jeremy P. Green, Weng-Kai K. Lee, Daniel Simmons, Terry M. Duffin
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Patent number: 11289276Abstract: A porous metal foil and porous metal wire are described. Capacitor anodes made from either or both of the porous metal foil and porous metal wire are further described as well as methods to make same.Type: GrantFiled: October 7, 2019Date of Patent: March 29, 2022Assignee: GLOBAL ADVANCED METALS JAPAN K.K.Inventor: Isayuki Horio
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Patent number: 11276851Abstract: The present invention provides an electrochemical unit, a manufacturing method for the same and a use of the same as a component of batteries, and an electrochemical device including the same. The electrochemical unit includes a mixture layer and a transition metal oxide layer. The mixture layer includes an oxide made of a first transition metal, an oxide made of a second transition metal, and a first alkali metal. The transition metal oxide layer is disposed on one side of the mixture layer, where the transition metal oxide layer includes a third transition metal oxide.Type: GrantFiled: July 3, 2019Date of Patent: March 15, 2022Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.Inventors: Min-Chuan Wang, Yu-Lin Yeh, Yu-Chen Li, Ding-Guey Tsai, Der-Jun Jan
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Patent number: 11270847Abstract: A capacitor that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that comprises a sintered porous anode body formed from a powder having a specific charge of about 100,000 ?F*V/g or more; a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte contains an in situ-polymerized conductive polymer. Further, the capacitor exhibits a leakage current of about 110 microamps or less at a temperature of about 23° C. after being subjected to an applied rated voltage.Type: GrantFiled: May 15, 2020Date of Patent: March 8, 2022Assignee: KYOCERA AVX Components CorporationInventor: Koji Inazawa
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Patent number: 11257628Abstract: A capacitor that comprises a solid electrolytic capacitor element, a casing material that encapsulates the capacitor element, an anode termination, and a cathode termination is provided. A nanocoating is disposed on at least a portion of the capacitor element, casing material, anode termination, cathode termination, or a combination thereof. The nanocoating has an average thickness of about 2,000 nanometers or less and contains a vapor-deposited polymer.Type: GrantFiled: July 2, 2018Date of Patent: February 22, 2022Assignee: KYOCERA AVX Components CorporationInventors: Jan Petrzilek, Lotfi Djebara, Ladislav Vilc
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Patent number: 11217397Abstract: A capacitor for powering an implantable medical device is described. The capacitor includes a casing having contoured surfaces to more closely conform to body contours. This means that the anode housed in the casing must also have a contoured shape substantially matching that of the casing. Accordingly, the anode is comprised of a pressed pellet having a surrounding peripheral edge extending to spaced-apart first and second major face walls. An anode lead wire comprises an embedded portion extending into the anode pellet. First and second channel-shaped recesses aligned with each other extend into the anode pellet from the first and second major face walls to intersect with the embedded lead wire portion. The first and second channel-shaped recesses also extend to opposed locations at the surrounding peripheral edge of the anode pellet.Type: GrantFiled: January 18, 2021Date of Patent: January 4, 2022Assignee: Greatbatch Ltd.Inventors: Jason T. Hahl, Barry C. Muffoletto, Anthony C Perez, Christina Scheuer
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Patent number: 11177075Abstract: A method for forming the polymer composite material onto the capacitor element is provided. The method includes a preparing step, a resting step, an immersing step, and a polymerization step. The preparing step includes forming a homogeneous reaction solution containing 3,4-ethylenedioxythiophene, an emulsifier, polystyrene sulfonic acid or salts thereof, an oxidant, and a solvent. The resting step includes resting the homogeneous reaction solution to generate microparticles so that a nonhomogeneous reaction solution containing the microparticles is formed. The immersing step includes immersing the capacitor element into the nonhomogeneous reaction solution so that the nonhomogeneous reaction solution is coated onto the capacitor element and a reaction layer is formed on the capacitor element.Type: GrantFiled: July 7, 2020Date of Patent: November 16, 2021Assignee: APAQ TECHNOLOGY CO., LTD.Inventors: Chieh Lin, Hao-Pu Chang
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Patent number: 11107622Abstract: A coil component includes a body having a first surface and a second surface opposing each other in a thickness direction of the body and including a core formed in the thickness direction; a coil part embedded in the body and including at least one turn around the core; an insulating layer disposed on the first surface of the body; a bonded conductive layer disposed on the insulating layer and having a surface roughness of the first surface which is in contact with the insulating layer greater than a surface roughness of the second surface opposing the first surface of the bonded conductive layer; and external electrodes connected to the coil part and covering the bonded conductive layer.Type: GrantFiled: October 18, 2018Date of Patent: August 31, 2021Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Byung Soo Kang, Byeong Cheol Moon, Joung Gul Ryu, Ju Hwan Yang
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Patent number: 11081286Abstract: A method for manufacturing an electrolytic capacitor includes a first step, a second step, and a third step. In the first step, a capacitor element is formed. The capacitor element includes an anode body, a cathode body, and a separator. The anode body includes a dielectric layer formed on a surface of the anode body. And the separator is disposed between the anode body and the cathode body. In the second step, the capacitor element is impregnated with a treatment solution containing an acid component and a base component. In the third step, the capacitor element is, after the second step, impregnated with a conductive polymer dispersion in a state that a part of the treatment solution remains in the capacitor element. The conductive polymer dispersion is obtained by dispersing, in a solvent, conductive polymer particles each including polyanion. A pH of the treatment solution is higher than a pH of the conductive polymer dispersion.Type: GrantFiled: September 5, 2019Date of Patent: August 3, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shumpei Matsushita, Tomoyuki Tashiro, Takayuki Matsumoto, Tatsuji Aoyama
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Patent number: 11062854Abstract: A solid electrolytic capacitor includes an element laminated body, an anode lead, a cathode lead, a coating layer, and an outer packaging resin. In the element laminated body, a plurality of capacitor elements each having an anode part and a cathode part are laminated. The anode lead is connected to a laminated anode part of the element laminated body. The laminated anode part is a part laminated by a plurality of anode part which include the anode part. The cathode lead is connected to a laminated cathode part of the element laminated body. The laminated cathode part is a part laminated by a plurality of cathode part which include the cathode part. The coating layer fills at least a part of a gap between the plurality of capacitor elements. The outer packaging resin seals the element laminated body together with a part of the anode lead and a part of the cathode lead.Type: GrantFiled: June 4, 2019Date of Patent: July 13, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroki Nagayama, Kouta Muneyasu, Makoto Nagashima
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Patent number: 11017954Abstract: A solid electrolytic capacitor that includes at least one capacitor element having a linear-shaped valve metal substrate that extends in an axial direction and includes a porous portion on a surface of a core portion, a dielectric layer on a surface of the porous portion, and a cathode layer on the dielectric layer; a cathode terminal including a recessed portion having an inner wall surface extending in the axial direction, the capacitor element is disposed in the recessed portion, and the cathode layer is electrically connected to the inner wall surface; an anode terminal electrically connected to the core portion of the capacitor element; and a sealing material covering the capacitor element.Type: GrantFiled: July 31, 2019Date of Patent: May 25, 2021Assignee: JAPAN CAPACITOR INDUSTRIAL CO., LTD.Inventors: Osamu Yokokura, Tomoki Nobuta, Kazutoyo Horio
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Patent number: 10957494Abstract: A solid electrolytic capacitor including: a capacitor element including an anode part provided on a first end side, and a cathode part provided on a second end side opposite the first end, so as to be adjacent to the anode part; and a cathode lead connected to the cathode part. The capacitor element has, on a surface of the cathode part, either one or both of a first protective layer and a second protective layer, the first protective layer being electrically insulating and provided on the first end side, the second protective layer being electrically insulating and provided on the second end side. The cathode part and the cathode lead are connected to each other via an electrically conductive adhesive layer.Type: GrantFiled: January 19, 2018Date of Patent: March 23, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Takuya Nakayama
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Patent number: 10943744Abstract: Anodes made from powder, such as tantalum powder, that is highly spherical is described. Methods to make the anodes are further described.Type: GrantFiled: February 27, 2019Date of Patent: March 9, 2021Assignee: GLOBAL ADVANCED METALS USA, INC.Inventors: Craig M. Sungail, Aamir Dawood Abid
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Patent number: 10861653Abstract: A solid electrolytic capacitor includes a plurality of capacitor elements that are laminated with each other. The plurality of capacitor elements each include an anode body, a solid electrolyte layer, and a cathode lead-out layer. The anode body is a foil-shaped electric conductor having a first main surface and a second main surface opposite to the first main surface. The anode body includes an anode section, a cathode formation section, and a separation section interposed between the anode section and the cathode formation section. The solid electrolyte layer and the cathode lead-out layer are disposed on both the first and the second main surfaces of the cathode formation section. A first insulating layer is disposed on the first main surface of the separation section.Type: GrantFiled: April 5, 2018Date of Patent: December 8, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Katsuhisa Ishizaki, Yuta Amiuchi, Yoshio Yamamura
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Patent number: 10741333Abstract: A capacitor assembly that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric. The solid electrolyte contains an adhesion layer that is positioned between an inner conductive polymer layer and an outer conductive polymer layer. The adhesion layer is formed from an organometallic compound and the outer layer is formed from pre-polymerized conductive polymer particles.Type: GrantFiled: October 12, 2017Date of Patent: August 11, 2020Assignee: AVX CorporationInventors: Issei Nakata, Jan Petrzilek, Miloslav Uher, Tomas Hofirek
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Patent number: 10658121Abstract: A capacitor and process for forming the capacitor, is provided wherein the capacitor comprises a conductive polymer layer. The conductive polymer comprises first particles comprising conductive polymer and polyanion and second particles comprising the conductive polymer and said polyanion wherein the first particles have an average particle diameter of at least 1 micron to no more than 10 microns and the second particles have an average particle diameter of at least 1 nm to no more than 600 nm.Type: GrantFiled: October 18, 2017Date of Patent: May 19, 2020Assignee: KEMET Electronics CorporationInventors: Ajaykumar Bunha, Antony P. Chacko, Qingping Chen, Yaru Shi, Philip M. Lessner
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Patent number: 10637065Abstract: The present disclosure provides a lithium battery and a cathode foil thereof. The cathode foil includes a base material layer, a first material layer formed on the base material layer, and a second material layer including a plurality of particle structure groups disposed inside the first material layer. Each of the particle structure groups includes a plurality of particle structures connected with each other. One of the first material layer and the second material layer is formed by a pure silicon material without impurities, and another one of the first material layer and the second material layer is formed by a pure carbon material without impurities. Therefore, the structural strength and the ion transmission efficiency of the lithium battery with the cathode foil can be increased in virtue of the particle structures that are connected with each other.Type: GrantFiled: January 24, 2018Date of Patent: April 28, 2020Assignee: APAQ TECHNOLOGY CO., LTD.Inventor: Ming-Goo Chien
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Patent number: 10535844Abstract: A repeatedly bendable power storage device is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. A repeatedly bendable electronic device is provided. A flexible electronic device is provided. The power storage device includes a positive electrode, a negative electrode, and an exterior body wrapping the positive electrode and the negative electrode. The exterior body includes a metal layer and a resin layer. The thickness of the metal layer in at least part of an outer edge of the exterior body is smaller than that in a region other than the outer edge. The exterior body has a plurality of slits in the outer edge.Type: GrantFiled: February 22, 2017Date of Patent: January 14, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Junya Goto, Ai Nakagawa, Yuika Sato
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Patent number: 10410796Abstract: A solid electrolytic capacitor includes a capacitor element including an anode portion and a cathode portion, an anode terminal electrically connected to the anode portion. The anode portion includes an anode body and an anode lead extending from the anode body. The anode terminal includes a first main surface and a second main surface opposite to the first main surface. The anode terminal includes a middle section, a first extension section and a second extension section, the first extension section and the second extension section being respectively disposed at both sides of the middle section. The first extension section has a first end part and is bent so that a tip of the first end part faces the second main surface. The second extension section has a second end part and is bent so that a tip of the second end part faces the second main surface. The anode lead connects with the first main surface of the anode terminal at the first end part and at the second end part.Type: GrantFiled: March 13, 2018Date of Patent: September 10, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Mikio Kobashi, Masanori Kashihara
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Patent number: 10204743Abstract: A capacitor, and method for making the capacitor, is provided with improved charging characteristics. The capacitor has an anode, a cathode comprising a conductive polymer layer and a work function modifier layer adjacent the conductive polymer layer and a dielectric layer between the anode and the cathode.Type: GrantFiled: February 6, 2017Date of Patent: February 12, 2019Assignee: KEMET Electronics CorporationInventors: Antony P. Chacko, Yaru Shi, Robert Ramsbottom, John T. Kinard, John Joseph Ols
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Patent number: 10046360Abstract: The present invention provides a method for manufacturing an aluminum electrode using a solution process and an aluminum electrode manufactured thereby. The manufacturing method includes the steps of: manufacturing an aluminum precursor solution for the solution processing using AlH3 as a basic material before forming aluminum; coating the aluminum precursor solution on a substrate through the solution process and drying the aluminum precursor solution; and forming a low work function aluminum electrode through a low-temperature baking process at the temperature of at most 150° C. The method for manufacturing the aluminum electrode according to the present invention improves a thermal defect of the electrode due to a high-temperature baking process, prevents excessive loss of raw materials, and can manufacture aluminum electrodes of various sizes with area ranging from small to large at relatively low costs and by a simple process under atmospheric pressure.Type: GrantFiled: December 8, 2010Date of Patent: August 14, 2018Assignee: Korea Institute of Machinery and MaterialsInventors: Hye Moon Lee, Dong-Won Lee, Jung-Yeul Yun
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Patent number: 9978535Abstract: A composite material of an electrode unit includes: a porous electrode material being 50˜95 wt % of the composite material; an electret material being greater than 0 wt % and less than 15 wt % of the composite material; a dispersant material being 0˜15 wt % of the composite material; an adhesive material being 0˜15 wt % of the composite material; an electric conduction auxiliary agent being greater than 0 wt % and less than 30 wt % of the composite material. The porous electrode material includes porous particles and the electret material is distributed among the porous particles.Type: GrantFiled: November 3, 2015Date of Patent: May 22, 2018Assignee: CYNTEC CO., LTD.Inventors: Yueh-Lang Chen, Ying-Da Luo, Jung-Yang Juang
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Patent number: 9887041Abstract: An anode body for a solid electrolytic capacitor element, which is an anode body for a solid electrolytic capacitor element having a dielectric layer on the surface of a sintered body, wherein at least a part of the surface of the valve-acting metal particles constituting the sintered body is covered with a dielectric layer, and a part of the dielectric layer on the particle surface has a larger thickness than the other part; and a method for producing the same, in which a sintered body of a valve-acting metal is immersed in an aqueous solution of an oxidizing agent after being subjected to chemical formation, the resulting sintered body is then immersed in water-soluble alcohol and dried, and the oxidizing agent is removed by water washing.Type: GrantFiled: July 16, 2014Date of Patent: February 6, 2018Assignee: SHOWA DENKO K.K.Inventor: Kazumi Naito
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Patent number: 9799456Abstract: Provided is a solid electrolyte capacitor which includes: a bottomed cylindrical housing which includes a bottom surface portion and a side surface portion raised from the bottom surface portion, and has an opening portion formed on an edge portion of the side surface portion; a capacitor element which is accommodated in the inside of the housing, and is formed by winding an anode foil and a cathode foil in an overlapping state with a separator interposed therebetween and by filling a space formed between the anode foil and the cathode foil with a solid electrolyte; a sealing member which seals the opening portion of the housing in a state where the capacitor element is accommodated in the inside of the housing; and a composite sheet which is arranged between the bottom surface portion of the housing and the capacitor element, and has the structure where a resin made of a high-molecular weight compound is retained in a fiber sheet containing at least cellulose fibers.Type: GrantFiled: October 2, 2015Date of Patent: October 24, 2017Assignee: RUBYCON CORPORATIONInventors: Akihiko Komatsu, Yoshishige Sakurai, Hiroki Tsutsui, Hayato Karasawa
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Patent number: 9786440Abstract: An anode for use in a high voltage electrolytic capacitor is provided. The anode contains a sintered porous pellet and a leadwire extending therefrom in a longitudinal direction. The pellet is multi-layered to the extent that it contains at least a first layer positioned adjacent to a second layer, both of which extend along the length of the anode. The anode leadwire is embedded within the first layer. For this reason, the first layer has a thickness greater than that of the leadwire. Nevertheless, the use of a separate and distinct second layer adjacent to the first layer can allow each of the layers to be independently pressed using a multi-sided compaction device so that the properties of the anode are not significantly impacted by the presence of the relatively large anode leadwire.Type: GrantFiled: December 17, 2014Date of Patent: October 10, 2017Assignee: AVX CorporationInventors: Mitchell D. Weaver, Lotfi Djebara, Radek Matousek
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Patent number: 9755088Abstract: In a method for manufacturing a solar cell, a first electrode is formed on one surface of a photoelectric conversion section by means of screen printing using a conductive paste, and a second electrode having an area larger than that of the first electrode is formed on the other surface of the photoelectric conversion section by means of screen printing using a conductive paste having viscosity lower than that of the conductive paste.Type: GrantFiled: February 17, 2015Date of Patent: September 5, 2017Assignee: SANYO ELECTRIC CO., LTD.Inventors: Satoshi Tohoda, Kenta Ishimura, Yayoi Nakatsuka
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Patent number: 9524829Abstract: An improved process for forming a capacitor, and improved capacitor formed thereby is described. The process includes: providing an anode comprising a dielectric thereon; applying a first layer of an intrinsically conducting polymer on the dielectric to form a capacitor precursor; applying at least one subsequent layer of an intrinsically conducting polymer on the first layer from a dispersion; and treating the capacitor precursor at a temperature of at least 50° C. no more than 200° C. at a relative humidity of at least 25% up to 100%, or fusing the layered structure by swelling the layered structure with a liquid and at least partially removing the liquid.Type: GrantFiled: January 13, 2015Date of Patent: December 20, 2016Assignee: KEMET Electronics CorporationInventors: Hong Zhang, Qingping Chen, Randolph S. Hahn
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Patent number: 9514891Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.Type: GrantFiled: February 22, 2016Date of Patent: December 6, 2016Assignee: AVX CorporationInventors: Lotfi Djebara, Stanislav Zednicek, Ivan Horacek, Jan Petrzilek
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Patent number: 9452940Abstract: Disclosed is lithium titanate having excellent rate properties and useful for electricity storage devices, which is produced by preparing lithium titanate secondary particles that are aggregates of lithium titanate primary particles and forming at least macro-pores on the surfaces of the secondary particles. The lithium titanate can be produced by a process which comprises drying and granulating a slurry comprising crystalline titan oxide, a titanic acid compound and a lithium compound and firing the granulated product to thereby produce lithium titanate secondary particles, wherein (1) the crystalline titan oxide to be used comprises at least two types of crystalline titan oxide particles having different average particle diameters from each other, and/or (2) the crystalline titan oxide is used in an amount at least four-fold larger than that of the titanic acid compound in terms of TiO2 content by weight.Type: GrantFiled: July 29, 2015Date of Patent: September 27, 2016Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Nariaki Moriyama, Masatoshi Honma, Kazuyoshi Takeshima, Yusuke Okuda, Naoya Nagahashi
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Patent number: 9384905Abstract: In accordance with an embodiment of the disclosure, an asymmetric supercapacitor includes a first active material with a high hydrogen over-potential and a second active material with a high oxygen over-potential. The first active material is based on a nitride, an oxynitride, a carbide, an oxycarbide, a boride, or an oxyboride of a metal selected from Groups III, IV, V, VI, and VII of the Periodic Table.Type: GrantFiled: October 12, 2011Date of Patent: July 5, 2016Assignee: The Regents of the University of Michigan, University of Michigan Office of Technology TransferInventors: Levi T. Thompson, Paul Rasmussen, Saemin Choi
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Patent number: 9378897Abstract: The present invention provides an electrode material for an aluminum electrolytic capacitor, which does not require any etching treatment and which has improved bending strength. Specifically, the present invention provides an electrode material for an aluminum electrolytic capacitor, which comprises, as constituent elements, a sintered body of a powder of at least one member selected from the group consisting of aluminum and aluminum alloys and an aluminum foil substrate that supports the sintered body thereon, which is characterized in that (1) the powder has an average particle size D50 of 0.5 to 100 ?m, (2) the sintered body is formed on one surface or both surfaces of the aluminum foil substrate and has a total thickness of 20 to 1,000 ?m, and (3) the aluminum foil substrate has a thickness of 10 to 200 ?m and an Si content of 10 to 3,000 ppm.Type: GrantFiled: May 21, 2012Date of Patent: June 28, 2016Assignee: TOYO ALUMINIUM KABUSHIKI KAISHAInventors: Toshifumi Taira, Masashi Mehata
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Patent number: 9343239Abstract: An improved process for forming a capacitor, and improved capacitor formed thereby is described. The process includes: providing an anode comprising a dielectric thereon; applying a first layer of an intrinsically conducting polymer on the dielectric to form a capacitor precursor; applying at least one subsequent layer of an intrinsically conducting polymer on the first layer from a dispersion; and treating the capacitor precursor at a temperature of at least 50° C. no more than 200° C. at a relative humidity of at least 25% up to 100%, or fusing the layered structure by swelling the layered structure with a liquid and at least partially removing the liquid.Type: GrantFiled: May 17, 2013Date of Patent: May 17, 2016Assignee: Kemet Electronics CorporationInventors: Hong Zhang, Qingping Chen, Randolph S. Hahn
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Patent number: 9312077Abstract: Activated carbons having improved volumetric capacitance and double layer capacitors including these activated carbons are described herein.Type: GrantFiled: December 17, 2012Date of Patent: April 12, 2016Assignee: Calgon Carbon CorporationInventors: Joseph M. Klinvex, Walter G. Tramposch, Robert H. Vaughn, Robert P. O'Brien
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Patent number: 9269499Abstract: A capacitor containing a solid electrolytic capacitor element including a sintered porous anode body, a first anode lead, and a second anode lead is provided. The first anode lead has a thickness that is larger than a thickness of the second anode lead. A portion of the first anode lead is embedded in the porous anode body, and a second portion of the first anode lead extends from a surface thereof in a longitudinal direction. Meanwhile, the second anode lead is electrically connected to the anode body for connection to an anode termination. In one embodiment, the second anode lead can be directly connected to a surface of the anode body. In another embodiment, the second anode lead can be indirectly connected to the anode body such as via attachment at an end of the second portion of the first anode lead.Type: GrantFiled: August 22, 2013Date of Patent: February 23, 2016Assignee: AVX CorporationInventors: Lotfi Djebara, Stanislav Zednicek, Ivan Horacek, Jan Petrzilek
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Patent number: 9240285Abstract: A solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, a solid electrolyte that contains one or more conductive polymers and overlies the dielectric, and an external coating that overlies the solid electrolyte, is provided. The external coating includes at least one carbonaceous layer and at least one metal layer. In addition to the aforementioned layers, the external coating can also include at least one conductive polymer layer that can be disposed between the carbonaceous and metal layers. Among other things, such a conductive polymer layer can reduce the likelihood that the carbonaceous layer will delaminate from the solid electrolyte during use. Further, the notched geometry of the anode body itself is selected to minimize the risk of delamination of the external coating layers from the anode body. This combination of characteristics can increase the mechanical robustness of the part and improve its electrical performance.Type: GrantFiled: August 22, 2013Date of Patent: January 19, 2016Assignee: AVX CorporationInventors: Lotfi Djebara, Ludek Kubes
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Patent number: 9126847Abstract: Disclosed is lithium titanate having excellent rate properties and useful for electricity storage devices, which is produced by preparing lithium titanate secondary particles that are aggregates of lithium titanate primary particles and forming at least macro-pores on the surfaces of the secondary particles. The lithium titanate can be produced by a process which comprises drying and granulating a slurry comprising crystalline titan oxide, a titanic acid compound and a lithium compound and firing the granulated product to thereby produce lithium titanate secondary particles, wherein (1) the crystalline titan oxide to be used comprises at least two types of crystalline titan oxide particles having different average particle diameters from each other, and/or (2) the crystalline titan oxide is used in an amount at least four-fold larger than that of the titanic acid compound in terms of TiO2 content by weight.Type: GrantFiled: May 25, 2010Date of Patent: September 8, 2015Assignee: ISHIHARA SANGYO KAISHA, LTD.Inventors: Nariaki Moriyama, Masatoshi Honma, Kazuyoshi Takeshima, Yusuke Okuda, Naoya Nagahashi
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Patent number: 9054067Abstract: A semiconductor package and a method of manufacturing the same are disclosed, wherein the semiconductor package includes a circuit board, a semiconductor chip mounted on the circuit board, an encapsulant positioned on the circuit board and encapsulating the semiconductor chip to the circuit board, and a thermal dissipating member positioned on the encapsulant and having a heat spreader that dissipates a driving heat from the semiconductor chip and a heat capacitor that absorbs excess driving heat that exceeds a heat transfer capability of the heat spreader, such that when a high power is applied to the package, the excess heat is absorbed into the heat capacitor as a latent heat and thus the semiconductor chip is protected from an excessive temperature increase caused by the excess heat, thereby increasing a critical time and performance duration time of the semiconductor package.Type: GrantFiled: December 3, 2013Date of Patent: June 9, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-Hyoek Im, Kyol Park, Hee-Seok Lee
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Patent number: 9036332Abstract: The present disclosure is related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors. The present disclosure is also related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors with an inorganic thixotropic-gelled-polymeric-electrolyte. The hybrid ultracapacitors of the present disclosure is simple to assemble, bereft of impurities and can be fast charged/discharged with high faradiac-efficiency.Type: GrantFiled: July 18, 2012Date of Patent: May 19, 2015Assignee: Indian Institute of ScienceInventors: Ashok Kumar Shukla, Anjan Banerjee, Musuwathi Krishnamoorthy Ravikumar, Shaik Abdul Gaffoor
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Patent number: 9036333Abstract: An electrolytic material formulation and a polymer polymerized therefrom are provided. The formulation includes: (a) a monomer of formula (I); and (b) a monomer of formula (II), wherein, A, X, B1, B2, R1 to R3, q and w are defined as recited in the specification, and the amount of monomer (b) is about 1 part by weight to about 800 parts by weight per 100 parts by weight of monomer (a). The polymer is useful as an electrolytic material of a solid capacitor.Type: GrantFiled: May 23, 2012Date of Patent: May 19, 2015Assignee: ETERNAL CHEMICAL CO., LTD.Inventor: Shinn-Horng Chen
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Patent number: 9030808Abstract: A capacitor and a circuit board having the same are provided. The capacitor includes a substrate, an oxide layer, a second electrode, an insulating layer, a plurality of conductive sheets and a plurality of vias. The substrate includes a first electrode and a porous structure. The porous structure in at least of two distribution regions has different depths. An oxide layer is disposed on the surface of the porous structure. The second electrode is disposed on the oxide layer and includes a conductive polymer material. The insulating layer disposed on the second electrode has a third and a fourth surfaces. The fourth surface of the insulating layer is connected with the second electrode. The conductive sheets are disposed on the first surface of the first electrode and the third surface of the insulating layer and electrically connected with the corresponding vias according to different polarities.Type: GrantFiled: September 10, 2012Date of Patent: May 12, 2015Assignee: Industrial Technology Research InstituteInventors: Chien-Min Hsu, Min-Lin Lee, Li-Duan Tsai
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Patent number: 9030806Abstract: A improved process for preparing a conductive polymer dispersion is provided as is an improved method for making capacitors using the conductive polymer. The process includes providing a monomer solution and shearing the monomer solution with a rotor-stator mixing system comprising a perforated stator screen having perforations thereby forming droplets of said monomer. The droplets of monomer are then polymerized during shearing to form the conductive polymer dispersion.Type: GrantFiled: January 25, 2013Date of Patent: May 12, 2015Assignee: Kemet Electronics CorporationInventors: Antony P Chacko, Yaru Shi, John Ols
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Publication number: 20150124374Abstract: An improved process for forming a capacitor, and improved capacitor formed thereby is described. The process includes: providing an anode comprising a dielectric thereon; applying a first layer of an intrinsically conducting polymer on the dielectric to form a capacitor precursor; applying at least one subsequent layer of an intrinsically conducting polymer on the first layer from a dispersion; and treating the capacitor precursor at a temperature of at least 50° C. no more than 200° C. at a relative humidity of at least 25% up to 100%, or fusing the layered structure by swelling the layered structure with a liquid and at least partially removing the liquid.Type: ApplicationFiled: January 13, 2015Publication date: May 7, 2015Inventors: Hong Zhang, Qingping Chen, Randolph S. Hahn
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Patent number: 9025313Abstract: In one embodiment, a structure for a energy storage device may include at one polycrystalline substrate. The grain size may be designed to be at least a size at which phonon scattering begins to dominate over grain boundary scattering in the polycrystalline substrate. The structure also includes a porous structure containing multiple channels within the polycrystalline substrate.Type: GrantFiled: August 13, 2012Date of Patent: May 5, 2015Assignee: Intel CorporationInventor: Eric C. Hannah
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Patent number: 9025316Abstract: An electrical component includes an inkjet-printed graphene electrode. Graphene oxide flakes are deposited on a substrate in a graphene oxide ink using an inkjet printer. The deposited graphene oxide is thermally reduced to graphene. The electrical properties of the electrode are comparable to those of electrodes made using activated carbon, carbon nanotubes or graphene made by other methods. The electrical properties of the graphene electrodes may be tailored by adding nanoparticles of other materials to the ink to serve as conductivity enhancers, spacers, or to confer pseudocapacitance. Inkjet-printing can be used to make graphene electrodes of a desired thickness in preselected patterns. Inkjet printing can be used to make highly-transparent graphene electrodes. Inkjet-printed graphene electrodes may be used to fabricate double-layer capacitors that store energy by nanoscale charge separation at the electrode-electrolyte interface (i.e., “supercapacitors”).Type: GrantFiled: July 10, 2014Date of Patent: May 5, 2015Assignees: The Trustees of The Stevens Institute of Technology, The United States of America, as Represented by The Secretary of The ArmyInventors: Woo Young Lee, Linh Le, De Kong, Matthew Henderson Ervin, James L. Zunino, III, Brian E. Fuchs
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Publication number: 20150118554Abstract: A graphene-containing electrochemical device includes cathode/anode current collectors, cathode/anode active layers and a separator. The cathode/anode active layers are formed on the cathode/anode current collectors, and include a metal foil substrate and a graphene conductive layer. The graphene conductive layer includes several first graphene sheets and the polymer binder used to bind the first graphene sheets. The cathode/anode active layers include several second graphene sheets and cathode/anode active particles. The second graphene sheets and the cathode/anode active particles are bound by the polymer binder and further adhered to the graphene conductive layer. The second graphene sheets are blended among the cathode/anode active particles.Type: ApplicationFiled: December 17, 2013Publication date: April 30, 2015Applicant: Enerage Inc.Inventors: Mark Y. Wu, Cheng-Yu Hsieh, Jing-Ru Chen, Shu-Ling Hsieh