Patents Examined by Daniel S Gatewood
  • Patent number: 11367576
    Abstract: An electrode for a power storage device includes a non-woven fabric current collector that comprises short fibers of aluminum or copper having an average length of 25 mm or less; and adsorbent material powder on which electrolyte ions are adsorbed during charging or active material powder which chemically react during charging and discharging, where the powder exists in the gaps formed between the short fibers of the non-woven fabric current collector.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 21, 2022
    Assignee: Charles Metallic & Solar Materials Co., Ltd.
    Inventors: Shunji Hasuo, Tatsumi Ishihara
  • Patent number: 11367875
    Abstract: A positive electrode active material includes powder of composite particles including a lithium transition metal composite oxide having a lamellar rock-salt structure and a spinel phase. The spinel phase includes an oxide including lithium and at least a first element X1 selected from the group consisting of magnesium, aluminum, titanium, manganese, yttrium, zirconium, molybdenum, and tungsten, and the lithium transition metal composite oxide includes nickel or cobalt and the first element X1.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: June 21, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Asuki Yanagihara, Yosuke Hosoya, Yuki Niwata, Ravi Gehlot
  • Patent number: 11362399
    Abstract: According to the present invention, a microporous membrane contains a polyolefin resin and inorganic particles; the primary particle diameter of the inorganic particles is 100 nm or less; the content of the inorganic particles is 10-60% by mass or 10% by mass or more but less than 40% by mass based on the mass of the microporous membrane; and the retention time at 150° C. is less than 200 seconds or the retention time at 145° C. is more than 1 second but less than 300 seconds in the thermal behavior evaluation of the microporous membrane.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 14, 2022
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yuki Fukunaga, Manabu Sekiguchi
  • Patent number: 11355747
    Abstract: Nanoporous carbon can provide a binderless, three-dimensional form of graphene as a host material for sodium-ion batteries or supercapacitors.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 7, 2022
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Katharine Lee Harrison, Michael Siegal, Matthaeus Wolak, Paul Cuillier
  • Patent number: 11355743
    Abstract: A lithium secondary battery comprises a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separator interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide including a continuous concentration gradient in at least one region between a central portion and a surface portion. The second cathode active material particle includes a constant concentration composition.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: June 7, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Duck Chul Hwang, Kyung Bin Yoo, Kook Hyun Han
  • Patent number: 11355771
    Abstract: A fuel cell including an anode side including an anode, an anode side gas diffusion layer and an anode side bipolar plate formed of a first metal material, and a cathode side including a cathode, a cathode side gas diffusion layer and a cathode side bipolar plate formed of a second metal material. The fuel cell also includes a membrane having first and second sides positioned between the anode and cathode sides. The fuel cell further includes an intercalation host situated in the anode and/or cathode sides. The intercalation host is configured to intercalate metal ions formed from the first and/or second metal materials.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 7, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Saravanan Kuppan, Michael Metzger, Münir M. Besli, Sondra Hellstrom, Thilo Lehre, Jake Christensen
  • Patent number: 11342565
    Abstract: The present disclosure relates to a fuel cell catalyst and a manufacturing method thereof. The fuel cell catalyst can be used to manufacture a membrane electrode assembly having a catalyst layer of high density and high dispersion by solving the problem of aggregation of catalyst particles occurring during the formation of the catalyst layer, by using a catalyst including a polydopamine-coated support. In addition, the method for manufacturing the fuel cell catalyst does not require a solvent because the catalyst including the polydopamine-coated support, wherein from 0.1 to 1% of the hydroxy groups contained in catechol groups of the polydopamine are replaced by halide atoms, in solid phase are simply heat-treated by solid-to-solid dry synthesis which allows manufacturing of a fuel cell catalyst in a short time by eliminating the need for a washing process using a solvent and an extraction process for sampling after the synthesis.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 24, 2022
    Assignee: Korea Institute of Science and Technology
    Inventors: Hee-Young Park, Jong Hyun Jang, Hyean-Yeol Park, Jea-Woo Jung, Katie Heeyum Lim, Hyoung-Juhn Kim, Dirk Henkensmeir, Sung Jong Yoo, Jin Young Kim, Hyun Seo Park, So Young Lee
  • Patent number: 11342581
    Abstract: A ceramic powder material which contains an LLZ-based garnet-type compound represented by Li7?3xAlxLa3Zr2O12 (where x satisfies 0?x?0.3) and in which a main phase of a crystal phase undergoes phase transition from a tetragonal phase to a cubic phase in the process of raising a temperature from 25° C. to 1050° C. and the main phase is the cubic phase even after the temperature is lowered to 25° C.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: May 24, 2022
    Inventor: Tadahiro Niwa
  • Patent number: 11342550
    Abstract: The weight and size of a lead-acid battery is reduced and the energy density per mass by forming base members of components of the lead-acid battery is improved by using aluminum or aluminum alloy and forming multiple plating layers on a surface of each base member. In order to prevent formation of pinholes in the multiple plating layers, the surface of the base member 22 is subjected to flattening processing, a solder plating layer with a film thickness of 10 ?m or more is formed, or many layers of group 4 metals with similar chemical properties are laminated. Moreover, in a positive electrode plate and a negative electrode plate, an active material layer 24 is formed on the outermost lead plating layer by an electrolytic formation treatment to improve the charging and discharging efficiencies of the lead-acid battery and to greatly reduce fall-off the active material layer 24.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 24, 2022
    Inventor: Hideaki Kato
  • Patent number: 11335945
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 17, 2022
    Inventors: Tomoya Futamura, Tamae Moriwaka, Takahiro Kawakami, Junpei Momo, Nobuhiro Inoue
  • Patent number: 11335931
    Abstract: Disclosed is a composite polymer electrolyte membrane comprising: a support membrane; a metal ion-blocking layer stacked on the support membrane; a stabilization layer; and a protecting layer, wherein the support membrane includes a cation conductive polymer.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 17, 2022
    Inventors: Ji Hun Ahn, Heung Yong Ha, Sheeraz Mehboob
  • Patent number: 11329267
    Abstract: Systems and methods are provided for heat treatment of whole cell structures. A battery may be formed based on applying of heat treatment to a whole cell composition that includes, at least, both anode material and cathode material, such that the anode material and the cathode material are heat treated at the same time. The heat treatment may include pyrolysis. The whole cell composition, and the corresponding cell formed based thereon, may include solid state electrolyte.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: May 10, 2022
    Inventors: Qian Huang, Benjamin Park, Ian Browne, Rahul Kamath, David J. Lee
  • Patent number: 11322797
    Abstract: A device for enabling controlled movement of ions between a first ion-containing fluid and second ion-containing fluid comprises at least one cationic exchange membrane positioned between the first and second ion-containing fluids, and at least one anionic exchange membrane in parallel with the at least one cationic exchange membrane positioned between the first and second ion-containing fluids. The one or more of the at least one cationic exchange membrane and the at least one anionic exchange membrane is a membrane electrode assembly comprising an ion exchange membrane, and one or more permeable electrodes embedded within the ionic exchange membrane. The number of cationic exchange membranes and the number of anionic exchange membranes is the same, and the ions move through the membrane electrode assembly in response to a variable capacitive charge.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: May 3, 2022
    Inventor: Kevin Michael Walsh
  • Patent number: 11316142
    Abstract: Methods for fabricating electrodes include coating a current collector with a slurry to form a coated current collector. The slurry includes a dry fraction, including silicon particles, polymeric binders, and one or more types of naturally occurring carbonaceous filaments, and one or more solvents. The coated current collector is heat treated to produce the electrode having a layer of silicon-based host material. The one or more naturally occurring carbonaceous filaments can include animal fibers, chitin, alginate, cellulose, keratin, and chitosan, and can have an average length of 1 ?m to 50 ?m and an average diameter of 1 nm to 500 nm. The dry fraction can include 5 wt. % to 95 wt. % silicon particles, 0.1 wt. % to 15 wt. % polymeric binders, and 1 wt. % to 20 wt. % naturally occurring carbonaceous filaments. The method can include assembling a battery cell by disposing the electrode and a positive electrode in electrolyte.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 26, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Meng Jiang, Raghunathan K, Ion C. Halalay, Mark W. Verbrugge
  • Patent number: 11316219
    Abstract: A metal air battery includes a multi module air supply unit having air suction units or air purification units in a parallel arrangement. The metal air battery further includes a battery module including a metal air cell and the air supply unit which supplies the air to the battery module. The air supply unit includes an air suction unit which suctions air and an air purification unit that adsorbs impurities such as moisture and nitrogen from the suctioned air. The air suction unit or the air purification unit may be provided in plural to be in a parallel arrangement to define the multi module air supply unit.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: April 26, 2022
    Inventors: Jeongsik Ko, Hyukjae Kwon, Dongmin Im
  • Patent number: 11302948
    Abstract: Disclosed are redox flow battery membranes, redox flow batteries incorporating the membranes, and methods of forming the membranes. The membranes include a polybenzimidazole gel membrane that is capable of incorporating a high liquid content without loss of structure that is formed according to a process that includes in situ hydrolysis of a polyphosphoric acid solvent. The membranes are imbibed with a redox flow battery supporting electrolyte such as sulfuric acid and can operate at very high ionic conductivities of about 100 mS/cm or greater. Redox flow batteries incorporating the PBI-based membranes can operate at high current densities of about 100 mA/cm2 or greater.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: April 12, 2022
    Assignee: University of South Carolina
    Inventors: Brian C. Benicewicz, Laura Murdock, Lihui Wang, Fei Huang, Andrew Pingitore
  • Patent number: 11302946
    Abstract: The present specification relates to a method for manufacturing a membrane electrode assembly and a laminate. Specifically, the present specification relates to a method for manufacturing a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane provided between the anode and the cathode, and a laminate which is an intermediate laminated during the manufacture of the membrane electrode assembly.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: April 12, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Ji Hun Kim, Doyoung Kim, Jae Choon Yang
  • Patent number: 11299397
    Abstract: Presently disclosed is a multi-layered carbon-based scaffolded structure having a conductive substrate. A first film is deposited on the conductive substrate and includes: a first concentration of three-dimensional (3D) carbon-based particles comprising: a plurality of conductive 3D aggregates formed of graphene sheets that are sintered together to define a 3D hierarchical open porous structure with mesoscale structuring in combination with micron-scale fractal structuring that is also configured to provide conduction between contact points of the graphene sheets. A porous arrangement is formed in the 3D hierarchical open porous structure and contains a liquid electrolyte configured to provide ion transport through a plurality of interconnected porous channels. The first film is configured to provide a first conductivity. A second film is deposited on the first film and comprising a second concentration of 3D carbon-based particles.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 12, 2022
    Assignee: LytEn, Inc.
    Inventors: Bruce Lanning, Michael W. Stowell, Jerzy Gazda, Jeffrey Bell
  • Patent number: 11302458
    Abstract: A device includes an ion-conducting membrane with ion-conducting ceramic particles, and an ion-conducting polymer that surrounds the ion-conducting membrane. The ion-conducting polymer includes a pressure-deformable film with a glass transition temperature lower than an operation temperature of the device.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: April 12, 2022
    Assignee: International Business Machines Corporation
    Inventors: Naga Phani Babu Aetukuri, Robert D. Miller, Young-hye Na, John Campbell Scott, Sogol Yahyazadeh
  • Patent number: 11296326
    Abstract: An energy storage device (10) includes: an electrode assembly (400) which includes a positive electrode plate (410) and a negative electrode plate (420), wherein the positive electrode plate (410) includes: a positive electrode substrate (411) which is electrically conductive; a positive electrode composite layer (414) which is formed on the positive electrode substrate (411), and an insulating layer (415), at least a part of the insulating layer being continuously formed on the positive electrode substrate (411) and an edge portion (414a) which is a portion including an edge of the positive electrode composite layer (414), and wherein an uneven portion (415a) is formed in the insulating layer (415) above the edge portion (414a) of the positive electrode composite layer (414).
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 5, 2022
    Inventors: Hiroyuki Danno, Taku Nakamura, Keita Hamakawa, Hisayuki Yamane, Kenichiro Ueki