Patents Examined by Robert S Carrico
  • Patent number: 11121369
    Abstract: The present application discloses a positive electrode plate, a preparation method thereof, and a lithium-ion secondary battery, wherein the positive electrode plate includes a positive electrode current collector and a positive electrode film disposed on at least one surface of the positive electrode current collector, wherein the positive electrode film includes a positive active material which is a lithium manganese-based positive active material; and wherein the volume resistivity ?sum of the positive electrode plate, the powder volume resistivity ? of the positive active material under a pressure of 20 MPa and the mass percentage a of the positive active material in the positive electrode film satisfy ?sum/?97.5-a?3. The positive electrode plate provided in the present application enables the lithium-ion secondary battery to simultaneously have higher safety performance, rate performance and cycle performance.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 14, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhiqiang Li, Changlong Han, Qifeng Li
  • Patent number: 11114682
    Abstract: A method for controlling a fuel cell system is provided. The method includes upon start of a fuel cell stack, obtaining a flow rate of air supplied into a cathode after an air regulator for regulating the air supplied into the cathode is opened. A sealing state of the fuel cell stack is then determined based on the obtained flow rate of the air.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: September 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyun Jae Lee, Sun Heum Baek
  • Patent number: 11108081
    Abstract: A method for efficiently producing sulfide solid electrolyte particles which are particles in spherical form and which have a small particle diameter. The method comprises: preparing a sulfide solid electrolyte material, grinding the sulfide solid electrolyte material by mechanical milling to obtain particles in flattened form (a first grinding step), and grinding the particles in flattened form by mechanical milling to obtain sulfide solid electrolyte particles in spherical form (a second grinding step), wherein a relationship A (J)>B (J) is satisfied, where A (J) is a kinetic energy (½(mv2)) per grinding medium used in the first grinding step, and B (J) is a kinetic energy (½(mv2)) per grinding medium used in the second grinding step.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 31, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yusuke Kintsu
  • Patent number: 11108091
    Abstract: A battery module having a plurality of battery cells stacked on one another, each battery cell having a first electrode lead protruding therefrom, and at least one sensing assembly mounted to at least one side of the plurality of battery cells and configured to electrically connect the first electrode leads is provided. The at least one sensing assembly includes a sensing bus bar electrically connected to the first electrode leads, and a plurality of sensing housing parts configured so that the sensing bus bar is mounted to a front surface thereof. Each sensing housing part of the plurality of sensing housing parts allowing a corresponding first electrode lead to pass therethrough toward the sensing bus bar. Each sensing housing part being detachably assembled with an adjacent sensing housing part of the plurality of sensing housing parts.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: August 31, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Bum-Hyun Lee, Jin-Kyu Shin
  • Patent number: 11098201
    Abstract: An object of the present invention is to provide a carbon black for batteries having excellent dispersibility, electron conductivity and oxidation resistance. In addition, an object of the present invention is to provide a low-viscosity conductive composition for an electrode produced using the carbon black, and a low-resistance battery electrode and a battery having excellent high-output characteristics and cycle characteristics produced using the conductive composition. A carbon black for batteries having: BET specific surface area of 50 to 220 m2/g; a crystallite diameter (La) of 30 to 42 ?; and a number of CO2 desorption molecules per unit surface area measured by a temperature-rising desorption gas analysis method (50° C. to 1200° C. of measurement temperature) of 8.0×1016 to 15.0×1016 molecules/m2 is excellent in dispersibility, electron conductivity and oxidation resistance.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 24, 2021
    Assignee: DENKA COMPANY LIMITED
    Inventors: Tatsuya Nagai, Shinichiro Osumi, Daiki Ikeda, Tetsuya Ito, Hiroshi Yokota
  • Patent number: 11088420
    Abstract: A manufacturing method of a battery structure is provided. A packing is provided, wherein the packing pre-forms an accommodating space. A first battery unit is disposed into the accommodating space, wherein the first battery unit includes at least one anode and at least one cathode alternately stacked with each other and a dielectric layer located between the anode and the cathode. A separation membrane is disposed into the accommodating space and located on the first battery unit. A second battery unit is stacked onto the separation membrane, located in the accommodating space and includes at least one anode and at least one cathode alternately stacked with each other and a dielectric layer located between the anode and the cathode. A dimension of the first battery unit is smaller than a dimension of the second battery unit. Electrolytes is injected into the accommodating space. The packing is sealed.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 10, 2021
    Assignee: HTC Corporation
    Inventors: Wan-Hsieh Liu, Shu-Feng Lin, Chih-Kai Hu, Yung-Ling Chou
  • Patent number: 11081699
    Abstract: The present invention provides composite particles for an electrochemical device electrode which makes it possible to manufacture an electrochemical device exhibiting excellent high temperature storage characteristics. The composite particles for an electrochemical device electrode of the present invention contain an electrode active material (A), a particulate binder resin (B), a water-soluble polymer (C), and a composite (D) of a water-soluble polymer (d?) and crystalline cellulose (d?).
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 3, 2021
    Assignee: ZEON CORPORATION
    Inventor: Azusa Masuda
  • Patent number: 11081692
    Abstract: The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of a composite electrode, to said composite electrode and to a secondary battery comprising said composite electrode.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 3, 2021
    Assignees: Solvay SA, Commissariat à 'Énergie Atomique et aux Énergies Alternatives
    Inventors: Olivier Pras, Helene Rouault, Julio A. Abusleme
  • Patent number: 11081710
    Abstract: A technique is disclosed of modified shutdown of a fuel cell power plant (14) having a fuel eel! stack assembly (26) contained with and supplying electrical power to a mobile vehicle (12). The -vehicle characteristically proceeds at intervals to a station. (10) containing one or more resources (20, 20A, 20B, 20C, etc) utilized by the fuel cell power plant, for resupply thereof. One such, resource provided at/by the station is electrical energy (20A), aid operation of the fuel cell power plant (14) is controlled to utilize the availability of that electrical energy (20A) to maintain, an active protective Hydrogen On condition for greatly extended intervals, for example many hours to several days or longer, via a Power On mode of operation. The Power On mode maintains at least a low level of hydrogen introduction and circulation sufficient to maintain a predetermined presence, e.g., pressure, of hydrogen at the fuel cell stack assembly (26).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: August 3, 2021
    Assignee: AUDI AG
    Inventors: Sitaram Ramaswamy, Michael L. Perry
  • Patent number: 11069921
    Abstract: Electrolyte solutions including at least one anhydrous fluoride salt and at least one non-aqueous solvent are presented. The fluoride salt includes an organic cation having a charge center (e.g., N, P, S, or O) that does not possess a carbon in the ?-position or does not possess a carbon in the ?-position having a bound hydrogen. This salt structure facilitates its ability to be made anhydrous without decomposition. Example anhydrous fluoride salts include (2,2-dimethylpropyl)trimethylammonium fluoride and bis(2,2-dimethylpropyl)dimethylammonium fluoride. Combining these fluoride salts with at least one fluorine-containing non-aqueous solvent (e.g., bis(2,2,2-trifluoroethyl)ether; (BTFE)) promotes solubility of the salt within the non-aqueous solvents. The solvent may be a mixture of at least one non-aqueous, fluorine-containing solvent and at least one other non-aqueous, fluorine or non-fluorine containing solvent (e.g., BTFE and propionitrile or dimethoxyethane).
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 20, 2021
    Assignees: California Institute of Technology, Honda Motor Co., Ltd.
    Inventors: Simon C. Jones, Victoria K. Davis, Christopher M. Bates, Nebojsa Momcilovic, Brett M. Savoie, Michael A. Webb, Thomas F. Miller, III, Robert H. Grubbs, Christopher Brooks, Kaoru Omichi
  • Patent number: 11063325
    Abstract: Disclosed herein is a pouch-shaped secondary battery including a pouch-shaped battery case surrounding an electrode assembly, a first electrode lead connected to the electrode assembly and extending to a joint of the battery case, a second electrode lead detachably connected to the first electrode lead and extending out of the battery case, a connection layer coupling the first electrode lead and the second electrode lead to each other, and a sealing layer coupling the battery case to the first electrode lead and the second electrode lead, wherein the first and second electrode leads are configured to be detached from one another in order to secure the safety of a pouch-shaped battery cell when the pouch-shaped battery cell swells due to gas generated in the pouch-shaped battery cell while the pouch-shaped battery cell is in an abnormal state or when the pouch-shaped battery cell is overcharged.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: July 13, 2021
    Inventors: Jong Pil Park, Kyoung Ho Kim, Min Woo Lee
  • Patent number: 11063294
    Abstract: The present invention provides a curing die for manufacturing a gel polymer electrolyte, and a method for manufacturing a gel polymer battery cell by using the same, the curing die comprising: a first die having a recessed part, which is formed inside a battery case and has a processing battery cell mounted therein and including an electrode assembly and a composition for forming the gel polymer electrolyte; and a second die coupled to the first die so as to seal the processing battery cell mounted in the recessed part.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 13, 2021
    Inventors: Se Mi Park, Yong Jun Kim, Chae Ah Kim, Seok Koo Kim, Seung Hyun Chung
  • Patent number: 11056724
    Abstract: In a power storage system, each of a plurality of power storage modules includes at least one cell, and the plurality of power storage modules are connected in series. A management device manages the plurality of power storage modules. Each of the plurality of power storage modules contains a first insulation unit having a primary side and a secondary side that are insulated from each other. The first insulation unit outputs a signal containing information of at least one cell to a communication line. The signal is referenced to predetermined standard voltage between a voltage at one end and a voltage at the other end of the plurality of power storage modules. The management device contains a second insulation unit having a primary side and a secondary side that are insulated from each other, and a circuit unit insulated from the communication line by the second insulation unit.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: July 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuta Kurosaki, Takahiro Kamikawa, Etsushi Aga
  • Patent number: 11050059
    Abstract: Particles including a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a solid polymer with high electrochemical stability. The particle has a solubility rate (ds), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 29, 2021
    Assignee: HYDRO-QUÉBEC
    Inventors: Patrick Charest, Michel Perrier, Martin Dontigny, Michel Petitclerc, Abdelbast Guerfi, Karim Zaghib
  • Patent number: 11043336
    Abstract: A process for manufacturing an electrode utilizing electron beam (EB) or actinic radiation to cure the electrode binder is provided. A process is also disclosed for mixing specific actinic or EB radiation curable polymer precursors with electrode solid particles to form an aqueous mixture, application of the mixture to an electrode current collector, followed by the application of actinic or EB radiation to the current collector for curing the polymer, thereby binding the electrode binder to the current collector. Lithium ion batteries, electric double layer capacitors, and components produced therefrom are also provided.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: June 22, 2021
    Assignee: Miltec Corporation
    Inventors: Gary Voelker, John Arnold, Joseph Fasolo
  • Patent number: 11043670
    Abstract: Disclosed is an anode for all-solid-state batteries, which is, when used in an all-solid-state battery, configured to suppress an increase in the confining pressure of the battery during charge. The anode may be an anode wherein the anode is for use in all-solid-state batteries and comprises an anode layer, and wherein the anode layer contains MSi2 (where M is one element selected from the group consisting of Yb, Er, Tm and Lu) as an anode active material.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 22, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoshi Wakasugi
  • Patent number: 11043717
    Abstract: A non-aqueous electrolyte secondary battery with improved cycle durability includes a power generating element including a positive electrode obtained by forming a positive electrode active material layer containing a positive electrode active material on a surface of a positive electrode current collector, a negative electrode obtained by forming a negative electrode active material layer containing a negative electrode active material on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the separator being 1.55 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the separator is 4.0% or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 22, 2021
    Assignee: Envision AESC Japan Ltd.
    Inventors: Manabu Nishijima, Fumihiro Kawamura, Yuji Muroya, Yoshiaki Nitta
  • Patent number: 11024875
    Abstract: A solid silicon secondary battery, by substitutions of silicon for lithium, enables decrease of preparations cost and minimizing of environmental pollutions. By laminate pressing multiple times a positive or negative electrode material, the present invention enables increase of the density of a positive or negative electrode active material to increase current density and capacity. By having mesh plates equipped inside the positive electrode active material and the negative electrode active material, the present invention enables effective moving of electrons. By enabling common use of an electrode, of a silicon secondary battery, connected during a serial connections of the silicon secondary battery, the present invention enables decreasing of the thickness of a silicon secondary battery assembly and increasing of output voltage. By being integrally formed with a PCB or a chip and supplying a power source, the present invention plays the role of a backup power source for instant discharging.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: June 1, 2021
    Assignee: REKRIX CO., LTD.
    Inventors: Byung Hoon Ryu, Jae Kyung Kong
  • Patent number: 11018371
    Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein functional aliphatic and/or aromatic amine compounds or derivatives are used as electrolyte additives to reduce gas generation in Li-ion batteries.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 25, 2021
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Park
  • Patent number: 11018335
    Abstract: A positive electrode for a lithium ion secondary battery includes a positive electrode composite material layer. The positive electrode composite material layer includes composite particles and electron conductive particles. The composite particles include positive electrode active material particles and a coating film. The coating film is formed on the surface of the positive electrode active material particles. The coating film contains a first electron conductive oxide. The electron conductive particles are dispersed in the positive electrode composite material layer. The electron conductive particles contain a second electron conductive oxide. Each of the first electron conductive oxide and the second electron conductive oxide has a perovskite structure.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: May 25, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Daisuke Horikawa, Ryuta Sugiura, Satoshi Kanada, Tetsutaro Hayashi, Taira Aida