Double Layer Electrolytic Capacitor Patents (Class 361/502)
  • Patent number: 11450489
    Abstract: The present invention provides a small electronic device including an actuation component that operates using an electromagnetic force, a power storage device, and a case in which the actuation component and the power storage device are stored, in which the power storage device is formed of a non-magnetic body.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 20, 2022
    Assignee: Kyushu Institute of Technology
    Inventors: Hideharu Onodera, Takahiro Ito
  • Patent number: 11437199
    Abstract: A layered dual hydroxide (LDH) composite is provided. The LDH composite includes a nickel (Ni)-cobalt (Co)-LDH, and a nitrogen (N) and sulfur (S) co-doped reduced graphene oxide (rGO-NS), where the Ni—Co-LDH is at least partially enfolded by the rGO-NS to form the LDH composite. An electrode including the LDH composite is also provided.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: September 6, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Firoz Khan
  • Patent number: 11430614
    Abstract: The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: August 30, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Shuichi Ishida, Keita Takahashi, Hiroaki Kitatomi, Akinori Yamabata, Yasuyuki Hirota
  • Patent number: 11404222
    Abstract: Disclosed herein is a complex generator including a hydrophilic fiber membrane coated with an adsorption material. Electrical energy is generated in such a manner that the adsorption material is adsorbed onto a polar solvent in some region of the hydrophilic fiber membrane by asymmetrical wetting of the polar solvent for the hydrophilic fiber membrane.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: August 2, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Il-Doo Kim, Tae-Gwang Yun, Jin Gook Bae
  • Patent number: 11387461
    Abstract: A positive electrode includes at least a positive electrode current collector, a conductive material, and a positive electrode active material. The positive electrode active material is disposed on a surface of the positive electrode current collector. The positive electrode current collector includes an aluminum foil and an aluminum oxide hydrate film. The aluminum oxide hydrate film covers a surface of the aluminum foil. The aluminum oxide hydrate film has a thickness not smaller than 10 nm and not greater than 500 nm. The aluminum oxide hydrate film has a porosity not lower than 10% and not higher than 50%. At least part of the conductive material is disposed within pores in the aluminum oxide hydrate film.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: July 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Torita, Akihiro Ochiai, Yusuke Fukumoto, Harunari Shimamura, Takuya Asari
  • Patent number: 11372300
    Abstract: A method of preparing a graphene circuit pattern, a substrate and an electronic product are disclosed. The method of preparing a graphene circuit pattern includes: immersing a metal circuit pattern in a graphene oxide solution to cause a redox reaction between the metal circuit pattern and graphene oxide, thereby forming the graphene circuit pattern. The graphene circuit pattern may be directly formed at a location of the metal circuit pattern, and is simple in production process, low in cost, and suitable for mass production.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 28, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Bo Hu, Wenchao Wang, Baoqiang Wang, Sang Jin Park
  • Patent number: 11348998
    Abstract: A method for using a graphene field-effect transistor (GFET) as a reconfigurable circuit, the method comprising the following steps: depositing a liquid dielectric over a graphene channel of the GFET; applying an activation energy via a first electric field across the liquid dielectric and the graphene channel to electrochemically produce chemical species within the liquid dielectric such that the chemical species accumulate at, and molecularly bond with, the graphene channel thereby decreasing a conductivity of the graphene channel; and applying a deactivation energy via a second electric field of opposite polarity to the first electric field to remove interaction between the chemical species and the graphene channel to increase the conductivity of the graphene channel.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: May 31, 2022
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Cody K. Hayashi, Richard C. Ordonez, David G. Garmire, Lewis Hsu
  • Patent number: 11346046
    Abstract: A carbon fiber complex material for a carbon fiber reinforced plastic composite material includes a carbon fiber material formed from a continuous carbon fiber, and carbon nanowalls formed on a surface of the continuous carbon fiber.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: May 31, 2022
    Assignee: IHI Corporation
    Inventors: Akihiko Yoshimura, Hirotsugu Chishina, Kensuke Hirata
  • Patent number: 11335515
    Abstract: The invention provides a capacitive energy storage device comprising: at least one porous film infiltrated with an electrolyte; and one or more pairs of separated electrodes disposed on top of a first surface of the porous film, each electrode comprising a capacitive electrode material in ionic communication with the underlying porous film, wherein the electrolyte provides ionic communication between the separated electrodes via the internal porosity of the porous film.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 17, 2022
    Assignee: MONASH UNIVERSITY
    Inventors: Parama Chakraborty Banerjee, Mainak Majumder, Derrek Evan Lobo, Abozar Akbarivakilabadi
  • Patent number: 11322312
    Abstract: An energy storage device and a method of fabricating such energy storage device. The energy storage device includes a first electrode, a second electrode, and an electrolyte. The combination of the electrodes and the electrolyte is arranged to elastically deform when subjected to an external mechanical load applied to the energy storage device. The electrolyte includes a polymer matrix of at least two crosslinked structures, including a first polymeric material and a second polymeric material; and an electrolytic solution retained by the polymer matrix.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 3, 2022
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Yukun Wang, Hongfei Li, Zijie Tang
  • Patent number: 11316231
    Abstract: In accordance with at least selected embodiments, the present disclosure or invention is directed to improved battery separators, high conductance separators, improved lead-acid batteries, such as flooded lead-acid batteries, high conductance batteries, improved systems, and/or, improved vehicles including such batteries, and/or methods of manufacture or use of such separators or batteries, and/or combinations thereof. In accordance with at least certain embodiments, the present disclosure or invention is directed to improved lead acid batteries incorporating the improved separators and which exhibit increased conductance. Particular, non-limiting examples may include lead acid battery separators having structure or features designed to improve conductance, lower ER, lower water loss, and the like.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 26, 2022
    Assignee: Daramic, LLC
    Inventors: Eric H. Miller, Nicholas R. Shelton, William L. Walter
  • Patent number: 11316146
    Abstract: Provided herein are energy storage devices comprising a first electrode comprising a layered double hydroxide, a conductive scaffold, and a first current collector; a second electrode comprising a hydroxide and a second current collector; a separator; and an electrolyte. In some embodiments, the specific combination of device chemistry, active materials, and electrolytes described herein form storage devices that operate at high voltage and exhibit the capacity of a battery and the power performance of supercapacitors in one device.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 26, 2022
    Assignee: The Regents of the University of California
    Inventors: Maher F. El-Kady, Richard B. Kaner, Mir Fazlollah Mousavi
  • Patent number: 11309135
    Abstract: Disclosed is a ceramic package for filling with a liquid-containing electrolyte, which includes: a package body defining a recessed cavity open at a front surface of the package body and including first and second ceramic layers stacked together; a plurality of electrode pads disposed on a bottom surface of the recessed cavity; and a plurality of outer connection terminals disposed on a back surface of the package body, wherein each of the electrode pads includes a pad body portion having a polygonal shape in plan view and an interlayer pad portion formed along an interlayer surface between the first and second ceramic layers, wherein the interlayer pad portion has a protruding part protruding outwardly from the pad body portion, and wherein via conductors are formed between the protruding parts of the electrode pads and the outer connection terminals through the first ceramic layer.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: April 19, 2022
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Takayuki Miyaji
  • Patent number: 11302490
    Abstract: A supercapacitor consisting of a tight protective housing, first and second electrodes, which are electrically insulated from each other. One or both electrodes are also insulated from the housing. Free volume of the cell and the space between the electrodes are filled with electrolyte fluid. On the surface of the first electrode there are applied carbonaceous materials comprising C-14 isotope. Method of supercapacitor construction lies in the preparation of the first and second electrodes with application of the surface layer made of carbonaceous materials, allocation of the first and second electrodes inside the tight housing and their electric insulation from each other, filling of the housing with electrolyte fluid. Into the layer of carbonaceous materials onto the surface of the first electrode the C-14 isotope is introduced.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 12, 2022
    Assignees: JOINT STOCK COMPANY “SCIENCE AND INNOVATIONS”, JOINT STOCK COMPANY “INSTITUTE OF NUCLEAR MATERIALS”
    Inventors: Vladimir Dmitrievich Risovanyy, Sergey Viktorovich Bulyarskiy, Dmitriy Vladimirovich Markov, Leonid Prokop'evich Sinel'nikov, Viktor Nikolaevich Nikolkin, Sergey Borisovich Zlokazov, Aleksandr Aleksandrovich Dzhanelidze, Vyacheslav Viktorovich Svetukhin
  • Patent number: 11299057
    Abstract: The invention relates to a method for charging an electrical energy store, the electrical energy store comprising at least one electrical energy storage unit and a predefined maximum permissible energy-store voltage limit value being specified for the electrical energy store. The electrical energy store is charged with a pulsed charging voltage, a maximum value of the pulsed charging voltage being greater than the predefined maximum permissible energy-store voltage limit value over a pulse duration in the case of at least one pulse. The invention further relates to a corresponding device for charging the electrical energy store, to a corresponding computer program, to a corresponding machine-readable storage medium and to a corresponding electrical energy store.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: April 12, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Lemke, Stefan Teusch, Thomas Lang, Maximilian Hinninger, Daniel Groezinger, Ulrich Schuetterle
  • Patent number: 11302488
    Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. At least one of the positive electrode and the negative electrode can include a treated carbon material, where the treated carbon material includes a reduction in a number of hydrogen-containing functional groups, nitrogen-containing functional groups and/or oxygen-containing functional groups.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 12, 2022
    Assignee: UCAP Power, Inc.
    Inventors: Priya Bendale, Robert Crawford, Porter Mitchell, Jeffrey Nelson, Doug Schafer, Xiaomei Xi
  • Patent number: 11270850
    Abstract: An electric double layer capacitor (EDLC) is disclosed including: a first electrode including a first current collector and first plurality of carbon nanotubes (CNTs) disposed substantially directly upon the first current collector; a second electrode comprising a second current collector and second plurality of CNTs disposed substantially directly upon the second current collector; and an electrolyte disposed between and in contact with (e.g., wetting) the first and second electrodes. In some embodiments, the EDLC is configured to have a capacitive frequency window comprising about 1 Hz to about 50 Hz.
    Type: Grant
    Filed: June 19, 2016
    Date of Patent: March 8, 2022
    Assignee: FASTCAP SYSTEMS CORPORATION
    Inventor: Nicolò Michele Brambilla
  • Patent number: 11258309
    Abstract: Provided is a wireless power transmission device. A wireless power transmission device includes: at least one antenna for wireless power transmission disposed on one side of a magnetic shielding sheet; a support plate having at least one receiving groove formed therein for receiving the antenna for wireless power transmission; and an antenna for wireless communication disposed along a side portion of the support plate.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 22, 2022
    Assignee: AMOSENSE CO., LTD
    Inventor: Seung Jae Hwang
  • Patent number: 11239475
    Abstract: Disclosed are a catalyst layer for a fuel cell, including a carbon carrier having pores, a catalyst metal carried on the carbon carrier, and an ionomer covering the carbon carrier, wherein the crystal length of the carbon carrier is not less than 6 nm, and the coverage of the catalyst metal by the ionomer is 55% to 65%, and a method for the production of a catalyst layer for a fuel cell, including heat-treating a carbon carrier having pores, heat-treating the heat-treated carbon carrier under an oxygen atmosphere to activate the carbon carrier, allowing the activated carbon carrier to carry a catalyst metal, mixing the carbon carrier carrying the catalyst metal and an ionomer to cover the carbon carrier with the ionomer, and forming the catalyst layer for a fuel cell using the carbon carrier covered with the ionomer.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: February 1, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tatsuya Arai
  • Patent number: 11236468
    Abstract: The present invention relates to a porous sheet comprising cellulose fibers having an average fiber diameter ranging from 20 to 500 nm; cut fibers having an average fiber diameter ranging from 1.5 to 20 ?m; and a hydrophilic polymer binder, wherein an amount of the cut fibers is 1% by weight or more and 80% by weight or less based on the total weight of the cellulose fibers and the cut fibers, and an amount of the hydrophilic polymer binder is 5 parts by weight or more and 30 parts by weight or less with respect to 100 parts by weight of the total weight of the cellulose fibers and the cut fibers. The porous sheet of the present invention can exhibit a superior strength (in particular, both tear strength and tensile strength), and exhibits a superior performance as a separator for an electrochemical device.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: February 1, 2022
    Assignee: TOKUSHU TOKAI PAPER CO., LTD
    Inventors: Katsuhiko Watanabe, Masanori Imai
  • Patent number: 11217779
    Abstract: A battery electrode composition is provided that comprises a composite material comprising one or more nanocomposites. The nanocomposites may each comprise a planar substrate backbone having a curved geometrical structure, and an active material forming a continuous or substantially continuous film at least partially encasing the substrate backbone. To form an electrode from the electrode composition, a plurality of electrically-interconnected nanocomposites of this type may be aggregated into one or more three-dimensional agglomerations, such as substantially spherical or ellipsoidal granules.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 4, 2022
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Gleb Yushin, Kara Evanoff, Oleksandr Magazynskyy
  • Patent number: 11217399
    Abstract: An electrochemical capacitor includes a plurality of electrode assemblies, each including a positive electrode configured in a rolled sheet form and having both surfaces coated with an active material layer, a negative electrode configured in a rolled sheet form to face the positive electrode and having both surfaces coated with an active material layer, a separator interposed and rolled between the positive electrode and the negative electrode, a positive electrode lead wire electrically connected to the positive electrode of each of the plurality of electrode assemblies, and a negative electrode lead wire electrically connected to the negative electrode of each of the plurality of electrode assemblies.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: January 4, 2022
    Inventor: Won-Gon Kim
  • Patent number: 11170946
    Abstract: The present invention provides a supercapacitor assembly which is characterised by comprising: a supercapacitor comprised of carbon-containing anode(s) and cathode(s), intermediate porous membrane(s) and an ionic liquid electrolyte; an electrical heater for heating the supercapacitor; and a thermostat for controlling the heater and maintaining the temperature of the ionic liquid at a temperature such that its viscosity is in the range 1 to 50 centipoise. In particular, there are provided supercapacitors which can operate at voltages greater than 3.5 v (for example, in the range 3.5 to 6 v) without significant long term redox degradation.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: November 9, 2021
    Assignee: Oxcion Limited
    Inventors: Stephen David Voller, Timothy Walder, Marappa Rajendran, Jonathan Tuck
  • Patent number: 11164703
    Abstract: The present invention provides a supercapacitor assembly which is characterised by comprising: a supercapacitor comprised of carbon-containing anode(s) and cathode(s), intermediate porous membrane(s) and an ionic liquid electrolyte; an electrical heater for heating the supercapacitor; and a thermostat for controlling the heater and maintaining the temperature of the ionic liquid at a temperature such that its viscosity is in the range 1 to 50 centipoise. In particular, there are provided supercapacitors which can operate at voltages greater than 3.5v (for example, in the range 3.5 to 6v) without significant long term redox degradation.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 2, 2021
    Assignee: Oxcion Limited
    Inventors: Stephen David Voller, Timothy Walder, Marappa Rajendran, Jonathan Tuck
  • Patent number: 11145469
    Abstract: A method for producing a porous carbon electrode includes preparing a slurry by mixing a porous, particulate, conductive carbon powder with a solution of a polymer binding agent for the particulate carbon powder in a solvent for the polymer binding agent, forming a precursor electrode by casting the slurry as a layer and subjecting the cast layer to a wet phase inversion to realize porosity in the cast layer, subjecting the thus obtained precursor electrode to a thermal treatment to cause oxidative stabilization, carbonization, dehydrogenation or cyclisation of the polymer binding agent or a combination of two or more of the afore mentioned phenomena by heating the precursor electrode and converting the polymer binding agent into a conductive binding agent binding the particles of the conductive carbon powder together.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: October 12, 2021
    Assignee: VITO NV
    Inventors: Willy Doyen, Dennis Cardoen, Joost Helsen, Andre-Viktor Claes
  • Patent number: 11139499
    Abstract: Disclosed are an apparatus for manufacturing a membrane electrode assembly to provide excellent mass transfer characteristics and durability and a manufacturing method using the same. A porosity gradient may be continuously imparted to electrodes of the membrane electrode assembly in a thickness direction thereby improving reactivity with external gas and transfer of internal ions.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 5, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Woo Jin Lee, Min Jin Kim, Ki Sub Lee, Su Won Seol
  • Patent number: 11133133
    Abstract: A supercapacitor module is provided. In some implementations, the supercapacitor module may include a first supercapacitor having a first parameter value for a capacitor parameter in a first test condition. The supercapacitor module may include a second supercapacitor having a second parameter value for the capacitor parameter in about the first test condition. A ratio of the second parameter value to the first parameter value may be from about 0.8 to about 1.2. The supercapacitor module may prevent overvoltages across the first and second supercapacitors, such that the supercapacitor module may satisfactorily operate without a balancing circuit.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: September 28, 2021
    Assignee: AVX Corporation
    Inventor: Shawn Hansen
  • Patent number: 11127537
    Abstract: Electric double layer capacitor devices are disclosed. The devices may be suitable for operation of wide temperature ranges. In some cases, the capacitor features a solid state electrolyte that includes an ionic liquid doped polymer matrix.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 21, 2021
    Assignee: FASTCAP SYSTEMS CORPORATION
    Inventors: Nicolò Michele Brambilla, Fabrizio Martini
  • Patent number: 11123696
    Abstract: The present invention relates to a method of manufacturing an integrated structure using microbubbles, and an integrated structure manufactured by the method.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 21, 2021
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Pil Jin Yoo, Seon Ju Yeo, Min Jun Oh
  • Patent number: 11118073
    Abstract: The present disclosure provides supercapacitors that may avoid the shortcomings of current energy storage technology. Provided herein are electrochemical systems, comprising three dimensional porous reduced graphene oxide film electrodes. Prototype supercapacitors disclosed herein may exhibit improved performance compared to commercial supercapacitors. Additionally, the present disclosure provides a simple, yet versatile technique for the fabrication of supercapacitors through the direct preparation of three dimensional porous reduced graphene oxide films by filtration and freeze casting.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 14, 2021
    Assignee: The Regents of the University of California
    Inventors: Richard Barry Kaner, Yuanlong Shao
  • Patent number: 11120952
    Abstract: A process for producing a supercapacitor cell, comprising (a) Assembling a porous cell framework composed of a first conductive foam structure, a second conductive foam structure, and a porous separator, wherein the first and/or second conductive foam structure has a thickness no less than 200 ?m and at least 80% by volume of pores; (b) Preparing a first suspension of an anode active material dispersed in a liquid electrolyte and a second suspension of a cathode active material (e.g. graphene sheets) dispersed in a liquid electrolyte; and (c) Injecting the first suspension into pores of the first conductive foam structure to form an anode and injecting second suspension into pores of the second conductive foam structure to form a cathode, wherein the anode active material or the cathode active material constitutes an electrode active material loading >10 mg/cm2, preferably >15 mg/cm2, more preferably >20 mg/cm2.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: September 14, 2021
    Assignee: Nanotek Instruments Group, LLC
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11107640
    Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, and an electrolyte where the electrolyte includes one or more additives and/or solvent components selected from vinylene carbonate (VC), vinyl ethylene carbonate (VEC), dimethylacetamide (DMAc), hydro fluorinated ether branched cyclic carbonate, a hydro fluorinated ether ethylene carbonate (HFEEC), hydro fluorinated ether (HFE), and fluorinated ethylene carbonate (FEC). The electrolyte may include a carbonate based solvent and one or more solvent components and/or one or more of vinylene carbonate (VC), vinyl ethylene carbonate (VEC), dimethylacetamide (DMAc), hydro fluorinated ether branched cyclic carbonate, a hydro fluorinated ether ethylene carbonate (HFEEC), hydro fluorinated ether (HFE), and fluorinated ethylene carbonate (FEC).
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 31, 2021
    Assignee: Maxwell Technologies, Inc.
    Inventors: Santhanam Raman, Xiaomei Xi, Xiang-Rong Ye, Jian Hong
  • Patent number: 11087928
    Abstract: An electrolytic capacitor includes an anode body including a dielectric layer, a cathode body, and a conductive polymer layer and a liquid component that are disposed between the anode body and the cathode body. The cathode body includes a base material part having an outer surface that is roughened surface and has a pore opened at the outer surface, and an inorganic conductive layer covering at least a part of the outer surface. The base material part includes a first coating layer disposed along at least a part of inner wall of the pore. The first coating layer contains phosphorus.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 10, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiaki Ishimaru, Kazunari Imamoto, Tatsuji Aoyama
  • Patent number: 11050080
    Abstract: An electrochemical cell includes an all-solid-state electrode body in which a positive electrode layer and a negative electrode layer are laminated together through a solid electrolyte and an exterior body having a cavity in which the electrode body is stored. The exterior body has a first case and a second case which sandwich the electrode body and a sealing member that defines the cavity together with the first case and the second case by joining the first case and the second. The thermal expansion coefficients of the electrode body, the first case, the second case, and the sealing member are all 10×10?6/° C. or lower.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 29, 2021
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Kazuhito Ogasa, Ryohei Sato
  • Patent number: 11037736
    Abstract: The present invention provides a lithium ion capacitor (LIC) that achieves high specific capacity and high energy density. The lithium ion capacitor according to the present invention includes a cathode, an anode arranged apart from the cathode, and a Li-ion electrolyte with which a space between the cathode and the anode is filled. The cathode is made of a composite of graphene and carbon nanotubes, the anode is made of a Li-doped composite of graphene and carbon nanotubes, and the mass ratio of the anode to the cathode is larger than 0 and less than 1.0.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 15, 2021
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jie Tang, Yige Sun, Luchang Qin
  • Patent number: 11015067
    Abstract: According to one of various aspects of the present invention, a slurry for a flexible electrode contains a component (a) dispersed in an aqueous emulsion. The emulsion includes one or more polymer components selected from the group consisting of acrylic polymers, urethane polymers, fluorine polymers, urea polymers, chloroprene polymers, and butadiene polymers. The emulsion has a pH of 6.5 to 8.0. In the slurry, the total of the polymer component(s) and the component (a) is 20 to 30% by mass. Of the total of the polymer component(s) and the component (a) in the slurry, the polymer component(s) is 60 to 85% by mass, and the component (a) is 15 to 40% by mass. Component (a) is carbon black having a DBP absorption amount under uncompressed conditions of 150 to 300 mL/100 g and a BET specific surface area of 35 to 140 m2/g.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 25, 2021
    Assignee: DENKA COMPANY LIMITED
    Inventors: Yoko Horikoshi, Tetsuya Ito
  • Patent number: 11017958
    Abstract: Disclosed are methods for fabricating supercapacitors (SCs) via vapor printing, specifically oxidative chemical vapor deposition (oCVD). Also disclosed are methods of using the supercapacitors, in particular for energy storage devices and photovoltaics.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: May 25, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Andong Liu, Karen K. Gleason, Peter Kovacik
  • Patent number: 11007489
    Abstract: A carbonized PVDC copolymer useful for the separation of an olefin from its corresponding paraffin may be made by heating a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 20 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C. A process for separating an olefin from its corresponding paraffin in a gas mixture is comprised of flowing the gas mixture through the aforementioned carbonized polyvinylidene chloride (PVDC) copolymer to produce a permeate first stream having an increased concentration of the olefin and a second retentate stream having an increased concentration of its corresponding paraffin.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: May 18, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Junqiang Liu, Janet M. Goss, Edward M. Calverley, Douglas E. Beyer
  • Patent number: 10991476
    Abstract: A new solvent-based method is presented for making low-cost composite graphite electrodes containing a thermoplastic binder. The electrodes, termed thermoplastic electrodes (TPEs), are easy to fabricate and pattern, give excellent electrochemical performance, and have high conductivity (1500 S m?1). The thermoplastic binder enables the electrodes to be hot embossed, molded, templated, and/or cut with a CO2 laser into a variety of intricate patterns. These electrodes show a marked improvement in peak current, peak separation, and resistance to charge transfer over traditional carbon electrodes. The impact of electrode composition, surface treatment (sanding, polishing, plasma treatment), and graphite source were found to impact fabrication, patterning, conductivity, and electrochemical performance. Under optimized conditions, electrodes generated responses similar to more expensive and difficult to fabricate graphene and highly oriented pyrolytic graphite electrodes.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 27, 2021
    Assignee: Colorado State University Research Foundation
    Inventors: Charles S. Henry, Kevin Klunder
  • Patent number: 10987650
    Abstract: One aspect of the present invention relates to an adsorption filter containing an activated carbon and a fibrous binder. The adsorption filter has a density of 0.400 g/ml or more, and a pore volume at a pore diameter of 1 to 20 ?m is 0.60 ml/g or less as measured by mercury intrusion porosimetry.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 27, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Keita Takahashi, Takayuki Yoshikawa, Tetsuya Hanamoto, Hiroe Yoshinobu, Takayuki Yamada
  • Patent number: 10984963
    Abstract: The present invention relates to a carbonaceous material having a specific surface area of 1,800 m2/g to 3,000 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 20, 2021
    Assignee: KURARAYCO., LTD.
    Inventors: Shohei Kobayashi, Motomi Matsushima, Taketoshi Okuno, Hideharu Iwasaki
  • Patent number: 10968103
    Abstract: Copper-filled carbon nanotubes and methods of synthesizing the same are provided. Plasma-enhanced chemical vapor deposition can be used to synthesize vertically aligned carbon nanotubes filled with copper nanowires. The copper filling can occur concurrently with the carbon nanotube growth, and the carbon nanotubes can be completely filled by copper. The filling of Cu inside the CNTs can be controlled by tuning the synthesis temperature.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 6, 2021
    Assignee: The Florida International University Board of Trustees
    Inventors: Wenzhi Li, Arun Thapa
  • Patent number: 10959467
    Abstract: The present invention provides to a wearable smart device having electrical wiring comprising a stretchable conductive composition having excellent in durability such as repeated bending properties and repeated twisting properties, a material for realizing the wearable smart device, and a method for producing the wearable start device. An electrical wiring including a fine line having an electrical line interval of 1 mm or less, preferably the line width of less than 1 mm, is formed by printing a paste for forming a stretchable conductor containing metal-based conductive particles and a non-crosslinked elastomer, and further dried and cured at a low temperature condition of 120° C. for 30 minutes. As a result, the wearable smart device having electrical wiring constituted by fine lines without sagging of the edge is obtained.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 30, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Yuko Nakao, Satoshi Imahashi, Michihiko Irie, Takashi Kondo, Maki Kinami
  • Patent number: 10957492
    Abstract: An electrolytic capacitor is disclosed. In an embodiment an electrolytic capacitor includes a housing having a base and an opening arranged opposite the base and a closure element being at least partly introduced into the opening, wherein the closure element is configured to close the housing, wherein the closure element includes a sealing element for electrically insulating a connection between closure element and housing, and wherein the closure element comprises at least one first contact element for electrically conductive connecting a second contact element.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 23, 2021
    Assignee: TDK ELECTRONICS AG
    Inventors: Norbert Will, Fabio Augusto Bueno de Camargo Mello, Igor Peretta, Emerson Almeida, Moisés Coster, Thales Machado
  • Patent number: 10957495
    Abstract: Provided is a supercapacitor comprising an anode, a cathode, an ion-permeable separator disposed between the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode, wherein at least one of the anode and the cathode contains multiple graphene sheets spaced by cellulosic nanofibers and has a specific surface area from 50 to 3,300 m2/g. Also provided is a process for producing an electrode for such a supercapacitor having a large electrode thickness, high active mass loading, high tap density, and exceptional energy density.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 23, 2021
    Assignee: Nanotek Instruments Group, LLC
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10942099
    Abstract: A self-healing method for fractured single crystal SiC nanowires. A hair in a Chinese brush pen of yellow weasel's hair moves and transfers nanowires, which are placed on an in-situ TEM mechanical microtest apparatus. An in-situ nanomechanical tension test is realized. The nanowires are loaded. Displacement is 0-200 nm. Fracture strength of the single crystal nanowires is 12-15 GPa. After the nanowires are fractured, unloading causes slight contact between the fractured end surfaces, electron beam is shut off, and self-healing of the nanowires is conducted in a vacuum chamber. Partial recrystallization is found at a fracture after self-healing through in-situ TEM representation. A fracture strength test is conducted again after self-healing. A fractured position after healing is the same as the position before healing. The fracture strength of the single crystal nanowires after self-healing is 1-2.5 GPa. The recovery ratio of the fracture strength is 10-20%.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 9, 2021
    Assignee: Dalian University of Technology
    Inventors: Zhenyu Zhang, Junfeng Cui, Yuefeng Du, Dongming Guo
  • Patent number: 10943745
    Abstract: The electric storage device includes an electrode assembly having a positive electrode and a negative electrode, a case for housing the electrode assembly, a pressure relief valve, and positive and negative electrode conductive members that are electrically connected to the respective corresponding electrodes. The case has a wall in which the pressure relief valve is disposed. At least one of the positive and negative electrode conductive members includes an interposing portion located between the inner surface of the wall and an end face of the electrode assembly facing the inner surface, and a shielding portion located closer to the end face of the electrode assembly than the interposing portion. The shielding portion covers the pressure release valve from a side of the wall where the electrode assembly is located.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 9, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Yamashita, Takayuki Hirose, Shinji Suzuki, Yasuaki Takenaka, Masato Ogasawara, Atsushi Minagata, Hirokuni Akiyama, Motoaki Okuda
  • Patent number: 10944109
    Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 9, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
  • Patent number: 10938032
    Abstract: Provided herein are energy storage devices having an anode comprising a layered double hydroxide comprising divalent ions and trivalent ions both of which contribute to energy storage. In some embodiments, the specific combination of device chemistry, active materials, and electrolytes described herein form storage devices that operate at high voltage and exhibit the capacity of a battery and the power performance of supercapacitors in one device.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: March 2, 2021
    Assignee: The Regents of the University of California
    Inventors: Maher F. El-Kady, Haosen Wang, Richard B. Kaner
  • Patent number: 10930444
    Abstract: An electrochemical device includes an element body, an exterior sheet, a seal part, and a leading terminal. The element body includes a pair of inner electrodes laminated to sandwich a separator sheet. The exterior sheet covers the element body. The seal part seals a peripheral part of the exterior sheet for immersing the element body in an electrolyte. The leading terminal extends outward from the seal part of the exterior sheet. The exterior sheet includes a front sheet and a back sheet. The front sheet includes a front-side metal sheet. The back sheet includes a back-side metal sheet.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 23, 2021
    Assignee: TDK CORPORATION
    Inventors: Hiroaki Hasegawa, Hidetake Itoh, Yoshihiko Ohashi, Yuji Yoshino, Kazunori Yoshikawa