Patents Examined by Kenneth J Douyette
  • Patent number: 10727453
    Abstract: The present disclosure relates to a method for sealing a pouch casing of a pouch-type secondary battery, which includes the steps of: a receiving step in which an electrode assembly is received in an inner space formed between an upper pouch and a lower pouch; and a sealing step in which a first pressure is applied to an outer circumferential sealing portion, where the upper pouch and the lower pouch are sealed, in the longitudinal direction, and then the pressure is relieved, wherein the sealing step is carried out by applying external force to the upper pouch in the upward direction and to the lower pouch in the downward direction, or by applying a second pressure working in perpendicular to the first pressure to the sealing portion from the inner part of the pouch casing in a direction toward the outside.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Su Choi, Sang-Hun Kim, Min-Hyeong Kang, Yong Kim, Cho-Long Kim, Hyung-Kyun Yu, Ji-Hoon Lee, Soo-Ji Hwang
  • Patent number: 10727543
    Abstract: In one embodiment, a system comprising a battery set comprising plural battery cells configured in a circuit; and a control system configured to switch current flow in the circuit from bi-directional flow to and from the battery set to mono-directional flow to or from the battery set based on an over-charging or over-discharging condition.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: July 28, 2020
    Assignees: CHANGS ASCENDING ENTERPRISE CO., LTD.
    Inventors: Chun-Chieh Chang, Olivia Pei Hua Lee, Tsun Yu Chang, Yu-Ta Tseng
  • Patent number: 10727541
    Abstract: The present invention provides a secondary battery in which an electrode assembly is sealed within a battery case together with an electrolyte, wherein a gas-absorbing polymer having an azo group is included in the battery cell so as to absorb gas generated within the battery.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: July 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sei Woon Oh, Hyun Min Kim, Sun Hwak Woo
  • Patent number: 10727532
    Abstract: The positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an ?-NaFeO2 structure, and having a diffraction peak at 2?=44±1° and a diffraction peak at 2?=18.6±1° in a powder X-ray diffraction diagram using a CuK? ray. In a ratio FWHM (003)/FWHM (104) of a full width at half maximum FWHM (003) for the diffraction peak at 2?=18.6±1° to a full width at half maximum FWHM (104) for the diffraction peak at 2?=44±1°, a ratio of FWHM (003)/FWHM (104) in a charge state immediately after a discharge state to FWHM (003)/FWHM (104) in the discharge state is 0.72 or more.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 28, 2020
    Assignee: GS Yuasa International Ltd.
    Inventors: Daisuke Endo, Takashi Shimizu
  • Patent number: 10714758
    Abstract: Electrodes and methods of creating co-continuous composite electrodes based on a highly porous current collector are provided. In one embodiment, a method for creating an electrode includes depositing a thin layer of material on the polymer template, removing polymer material of the polymer template and depositing a second material. The method may also include controlling internal surface area per unit volume and the active material thickness of at least the second material to tune the electrochemical performance of the electrode. In one embodiment, a composite electrode is provided including interpenetrating phases of a metal current collector, electrolytically active phase, and electrolyte.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: July 14, 2020
    Assignee: The Regents of the University of California
    Inventors: Jessica Witt, Ali Mohraz, Daniel Mumm
  • Patent number: 10714774
    Abstract: A fuel cell system comprises: a fuel cell stack having a plurality of unit cells in which anode gas flow paths are formed; an anode gas supply unit configured to supply anode gas to the fuel cell stack via an anode gas supply port of the fuel cell stack; a pressure sensor provided between the anode gas supply port and the anode gas supply unit to measure anode gas supply pressure; a current sensor configured to measure electric current of the fuel cell stack; and a controller configured to control anode gas supply quantity of the anode gas supply unit to thereby control the anode gas supply pressure.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 14, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Manabu Takahashi
  • Patent number: 10707493
    Abstract: The present invention provides an electrode capable of reducing contact resistance between a resin current collector and the electrode, and a method of manufacturing the electrode. The electrode of the present invention includes a positive electrode current collector 11 containing a polymer material and a conductive filler, a positive electrode active material layer 13 disposed adjacent to the positive electrode current collector, and a concavoconvex shape 11c corresponding to a concavoconvex shape 13c formed on a surface of the positive electrode active material layer that is in contact with the positive electrode current collector, the concavoconvex shape being formed on a surface of the positive electrode current collector that is in contact with the positive electrode active material layer.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: July 7, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Hajime Satou, Yuki Kusachi, Hiroshi Akama, Hideaki Horie, Masatoshi Okura
  • Patent number: 10707519
    Abstract: Provided is a lithium ion secondary battery that has improved cycle characteristics and employs a silicon material as a negative electrode active material. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising at least a copolymer and a material comprising silicon as a constituent element, wherein the copolymer comprises a monomer unit based on an ethylenically unsaturated carboxylic acid alkali metal salt and a monomer unit based on an aromatic vinyl and the copolymer comprises an alkali metal constituting the alkali metal salt in an amount of 1000 mass ppm or more.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 7, 2020
    Assignee: NEC CORPORATION
    Inventor: Suguru Tamai
  • Patent number: 10680252
    Abstract: A catalyst layer material and a membrane electrode assembly (MEA) having same are provided. The catalyst layer material used for a fuel cell has a catalyst support and a catalyst distributed on the catalyst support. The catalyst support has TiWMXNYOZ, wherein Ti is titanium; M is one metal element selected from a group consisting of group IB metals, group IIA metals, group IIB metals, group VB metals, group VIB metals, group VIIB metals and group VIIIB metals; N is an non-metal element selected from a group consisting of nitrogen, phosphorus, and sulfur; O is oxygen; 0<W?1; 0<X?0.5; 0<Y?0.2; 1.5?Z?2.0. By applying a non-carbon catalyst support doped with metal cations and anions to the membrane electrode assembly, stability and performance of the fuel cell can be effectively enhanced.
    Type: Grant
    Filed: July 1, 2018
    Date of Patent: June 9, 2020
    Assignee: National Taiwan University of Science and Technology
    Inventors: Bing-jen Hsieh, Bing-joe Hwang, Meng-che Tsai, Wei-nien Su
  • Patent number: 10680231
    Abstract: Selective alloy corrosion is used to synthesize a robust and ultrafine mesoporous NiFeMn-based metal/metal oxide oxygen evolving catalyst with ligament and pore sizes in the range of 10 nm and a BET surface area of 43 m2/g. As an oxygen evolving catalyst, the mesoporous catalyst exhibits high stability (>264 hours) at a high current density (500 mA/cm2) with a low overpotential (360 mV) using a moderate electrolyte concentration (1 M KOH). The catalyst is made from non-precious metals and its fabrication is straight forward and directly applicable to large-scale synthesis.
    Type: Grant
    Filed: May 27, 2018
    Date of Patent: June 9, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Sarah Tolbert, Eric Detsi, Benjamin Lesel
  • Patent number: 10673068
    Abstract: The present disclosure relates to a negative electrode active material having excellent output characteristics and causing little gas generation, and an electrode including the negative electrode active material. The negative electrode active material includes metal oxide-lithium titanium oxide (MO-LTO) composite particles which have a shape of secondary particles formed by aggregation of primary particles, wherein the primary particles have a core-shell structure including a core and a shell totally or at least partially covering the surface of the core, the core includes primary particles of lithium titanium oxide (LTO), and the shell includes a metal oxide.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: June 2, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Min-A Park, Dae-Hong Kim, Jae-Kyung Kim, Won-Hee Jeong
  • Patent number: 10665832
    Abstract: The present invention relates to a battery pack including: a plurality of battery modules each including a plurality of battery cells, wherein at least one of the battery modules has a layer structure with the remaining battery modules based on the ground; a battery management system (BMS) mounted adjacent to the battery modules and monitoring and controlling operation of the battery modules; a battery disconnect unit (BDU) mounted adjacent to the battery modules and controlling electrical connection of the battery modules; a base plate having a structure in which the battery modules are mounted on an upper surface thereof and a lower end part thereof is fixed to an external device; and a pack cover surrounding the battery modules and coupled to an outer periphery of the base plate.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Chan Kim, Joo Sung Kim, Na Ri Shin
  • Patent number: 10665833
    Abstract: The present disclosure relates to a stacked cell manufacturing scheme for battery modules. A disclosed method of manufacturing a battery module includes assembling a plurality of prismatic battery cells of the battery module into a cell stack. The method includes compressing the cell stack using an actuating clamping mechanism, inserting the cell stack into a housing of the battery module with the actuating clamping mechanism engaged with and compressing the cell stack, and removing the actuating clamping mechanism from the cell stack. The housing of battery module maintains a compression of the cell stack above a predetermined threshold in the battery module after removing the actuating clamping mechanism.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: May 26, 2020
    Assignee: CPS Technology Holdings LLC
    Inventors: Richard M. DeKeuster, Jason D. Fuhr, Robert J. Mack, Jonathan P. Lobert, Jennifer L. Czarnecki
  • Patent number: 10665847
    Abstract: The electrode assembly comprises a first electrode unit in which an electrode and a separator are alternately stacked and a second electrode unit in which an electrode and a separator are alternately stacked, the second electrode unit having a size less than that of the first electrode unit and being stacked on the first electrode unit, wherein a tab bonding body manufactured by connecting an electrode tab provided in the first electrode unit to an electrode tab provided in the second electrode unit is disposed within a range of a width of the second electrode unit, and a leading electrode tab to which an electrode lead is connected is disposed on a portion of the first electrode unit.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jung Shik Oh, Jeong Min Kim, Kyoung Won Kang
  • Patent number: 10658650
    Abstract: A secondary battery includes at least: a laminated electrode body 20 in which an electrode member 21 and a separator 26 are laminated, in which a suppressing member 31A suppressing a movement of the separator 26 with respect to the electrode member 21 is disposed between a portion 21A of the electrode member 21 and a portion of the separator 26, in an uneven portion 27A existing in the laminated electrode body 20.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: May 19, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Shibutani, Takaaki Matsui
  • Patent number: 10651448
    Abstract: A secondary battery suppresses generation of wrinkle at the outer peripheral edge portion of a negative electrode plate due to expansion of a negative electrode active material layer with use. The secondary battery includes a positive electrode plate with a positive electrode active material layer disposed on a first current collector, and a negative electrode plate with a negative electrode active material layer having an area larger than an area of the positive electrode active material layer disposed on a second current collector. The negative electrode plate includes a facing portion facing the positive electrode active material layer and a non-facing portion. The negative electrode plate and a separator are bonded through a bonding layer. The bonding strength of a second bonding portion that bonds the non-facing portion to the separator is larger than the bonding strength of a first bonding portion that bonds the facing portion to the separator.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 12, 2020
    Assignee: Envision AESC Japan Ltd.
    Inventors: Takashi Honda, Yoshinori Naruoka, Satoshi Yoshino
  • Patent number: 10651477
    Abstract: A porous carbon electrode substrate hardly causes a short circuit when used in a fuel cell, and from which carbon fibers protruding from the substrate surface, carbon fibers that protrude from the substrate surface when the porous carbon electrode substrate is pressurized in a direction perpendicular to a surface thereof, and short carbon fibers that are insufficiently bonded at the substrate surface have been sufficiently removed. The porous carbon electrode substrate includes short carbon fibers and carbonized resin bonding the short carbon fibers, the porous carbon electrode substrate having an average short circuit current value measured at a first surface of 10 mA or less.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Mikio Inoue, Takayuki Oda, Tamotsu Suzuki
  • Patent number: 10637015
    Abstract: The disclosure provides seals for devices that operate at elevated temperatures and have reactive metal vapors, such as lithium, sodium or magnesium. In some examples, such devices include energy storage devices that may be used within an electrical power grid or as part of a standalone system. The energy storage devices may be charged from an electricity production source for later discharge, such as when there is a demand for electrical energy consumption.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 28, 2020
    Assignee: AMBRI INC.
    Inventors: Greg Thompson, David J. Bradwell, Vimal Pujari, Chia-Ying Lee, David McCleary, Jennifer Cocking, James D. Fritz
  • Patent number: 10637048
    Abstract: A silicon anode material for an electrochemical cell that cycles lithium and methods of formation relating thereto are provided. The silicon anode material comprises a plurality of carbon-encased silicon clusters, where each carbon-encased silicon cluster includes a volume of silicon nanoparticles encased in a carbon shell having an interior volume greater than the volume of the silicon nanoparticles. The method of making the silicon anode material includes forming a plurality of precursor clusters, where each precursor silicon-based cluster comprises a volume of SiOx nanoparticles (x?2). The method further includes carbon coating each of the precursor clusters to form a plurality of carbon-coated SiOx clusters; and reducing the SiOx nanoparticles in each of the carbon-coated SiOx clusters to form the silicon anode material.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 28, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gongshin Qi, Wei Li, Xingcheng Xiao
  • Patent number: 10637100
    Abstract: A method of making a passively impact resistant composite electrolyte and separator layer includes providing a suspension composition including electrically non-conducting particles that enable shear thickening. The particles can have a polydispersity index of no greater than 0.1, an average particle size in a range of from 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. A particle suspension solvent is provided for suspending the particles. The suspension composition is applied to a porous separator material. A portion of the particles and suspension solvent penetrate the pores and the remainder of the particles in the suspension composition are distributed across the surface of the separator material. The suspension solvent is evaporated from the separator material to provide a shear thickening particle loaded separator. A separator assembly and a passivated battery are also disclosed.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 28, 2020
    Assignee: UT-BATTELLE, LLC
    Inventors: Beth L. Armstrong, Gabriel M. Veith, Sergiy Kalnaus, Hsin Wang, Katie L. Browning, Kevin M. Cooley