Patents Examined by Kwang Han
  • Patent number: 11189834
    Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a first current collector and a second current collector. Exemplary battery cells may also include a first region defined between the first current collector and the second current collector. The first region may include electrode materials. The battery cells may also include a second region defined between the first current collector and the second current collector. The second region may be fluidly isolated from the first region. The second region may include an electrolyte.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 30, 2021
    Inventor: Qingcheng Zeng
  • Patent number: 11177520
    Abstract: A method and system provide a plurality of power cell modules. The power cell modules can be stacked together such that they are electrically connected and share a collective multi-voltage bus. Electronic appliances can be connected to one of the power cell modules to be powered by all of the connected power cell modules. Power cell modules can be easily added or removed from the bank without interrupting the supply of power to the electronic appliance.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 16, 2021
    Assignee: Joulecase LLC
    Inventors: James Wagoner, Alex Livingston
  • Patent number: 11177501
    Abstract: A production method of a negative electrode active material for non-aqueous electrolyte secondary batteries containing a silicon compound (SiOx: 0.5?x?1.6) that contains Li, includes: making a silicon compound into which the lithium has been inserted contact with a solution B containing a polycyclic aromatic compound or a derivative thereof or both thereof (here, the solution B contains one or more kinds selected from an ether-based solvent, a ketone-based solvent, an ester-based solvent, an alcohol-based solvent, and an amine-based solvent as the solvent); and making the silicon compound contact with a solution C (here, the solution C contains one or more kinds selected from an alcohol-based solvent, a carboxylic acid-based solvent, and water as the solvent). Thereby, a production method of a negative electrode active material for non-aqueous electrolyte secondary batteries is capable of increasing a battery capacity and improving the cycle characteristics.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 16, 2021
    Inventors: Hiromichi Kamo, Takakazu Hirose
  • Patent number: 11177478
    Abstract: A binder for a nonaqueous electrolyte secondary battery electrode and use thereof are described. The binder contains a crosslinked polymer or salt thereof, the crosslinked polymer having an ethylenically unsaturated carboxylic acid and a crosslinkable monomer in constituent monomers thereof, or salt thereof, wherein the crosslinked polymer includes the ethylenically unsaturated carboxylic acid in an amount of 20 to 99.95 mass % of the total constituent monomers, and the crosslinked polymer includes at least one compound selected from the group made of trimethylolpropane diallyl ether and trimethylolpropane triallyl ether as the crosslinkable monomer.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: November 16, 2021
    Assignee: TOAGOSEI CO. LTD.
    Inventors: Hideo Matsuzaki, Tomoko Nakano
  • Patent number: 11171322
    Abstract: Provided herein are a positive electrode for a secondary battery and a secondary battery including the same. The positive electrode includes a positive electrode active material layer including a positive electrode active material, a conductive material, and a dispersant, wherein the conductive material includes bundle-type carbon nanotubes, units of which have an average strand diameter of 15 nm or less, and the positive electrode active material layer has a packing density of 3.0 g/cc or more, and has an average pore diameter of 0.1 ?m to 0.5 ?m at the packing density when a pore size distribution is measured by mercury intrusion porosimetry, and thus may exhibit excellent electrolyte wetting properties. As a result, when the positive electrode is applied to a battery, wetting time of the positive electrode is shortened, and an area of the positive electrode that is not filled with an electrolyte is reduced, resulting in enhanced battery performance.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: November 9, 2021
    Inventors: Jong Heon Seol, Min Hee Lee, Dong Kyu Kim, Jae Woong Kim, Ye Lin Kim, Sang Hoon Choy, Je Young Kim, Sun Kyu Kim
  • Patent number: 11171391
    Abstract: Assemblies and methods are provided for manufacturing a battery. A number of cells each have tabs for coupling the cell in the battery assembly. A housing has an opening through which each tab extends. The tabs are folded to overlie an outer surface of the housing. A bus bar is disposed on an opposite side of the tabs from the housing, with a coupling joint between the bus bar and the cells. The coupling joint may comprise a weld.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 9, 2021
    Inventors: Evan J. Dawley, Hongliang Wang
  • Patent number: 11158880
    Abstract: Provided herein are defect-free solid-state separators which are useful as Li+ ion-conducting electrolytes in electrochemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: October 26, 2021
    Assignee: QuantumScape Battery, Inc.
    Inventors: Cheng-Chieh Chao, Zhebo Chen, Lei Cheng, Niall Donnelly, Tim Holme, Tommy Huang, Sriram Iyer, Kian Kerman, Harsh Maheshwari, Jagdeep Singh, Gengfu Xu
  • Patent number: 11158864
    Abstract: Improved catalyst layers for use in fuel cell membrane electrode assemblies, and methods for making such catalyst layers, are provided. Catalyst layers can comprise structured units of catalyst, catalyst support, and ionomer. The structured units can provide for more efficient electrical energy production and/or increased lifespan of fuel cells utilizing such membrane electrode assemblies. Catalyst layers can be directly deposited on exchange membranes, such as proton exchange membranes.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: October 26, 2021
    Assignee: Nikola Corporation
    Inventor: John Slack
  • Patent number: 11128021
    Abstract: A battery pack includes battery cells arranged in a first direction, a wiring board collecting state information about the battery cells, and a sensing portion including an input port through which the state information about the battery cells is input, an output port coupled to the wiring board and through which the state information about the battery cells is output, and a connection portion between the input and output ports. The connection portion extends in a curved shape with portions spaced apart from each other in a second direction crossing the first direction. Damage or dielectric breakdown of a conductive line transmitting signals relating to the state information about the battery cells may be prevented, and accumulation of stress in the conductive line or an insulating film may be prevented, because the conductive line or the insulating film is flexibly deformed in response to swelling of the battery cells.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 21, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kisuk Son, Jaepil Ahn, Chuljung Yun, Kyungho Cho
  • Patent number: 11127938
    Abstract: A method of fabricating a battery electrode includes forming a mixture including an electrode material and a binder; forming an electrode blank from the mixture; heating the electrode blank at a predetermined temperature for a predetermined time to form an annealed electrode blank; and laminating the annealed electrode blank to a current collector. The current collector may include a conductive carbon coating. In such event, the method may further include heating the current collector at a selected temperature for a selected time prior to laminating the annealed electrode blank to the current collector.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 21, 2021
    Assignee: Pacesetter, Inc.
    Inventor: Xiaofei Jiang
  • Patent number: 11108053
    Abstract: The present invention is a resin composition for dense fuel cell separators, which contains a graphite powder and an epoxy resin component that contains a base material, a curing agent and a curing accelerator, and wherein: the graphite powder has a spring back of 20-70% and an average particle diameter d50 of 30-100 ?m; and the curing accelerator is an imidazole compound that has an aryl group in the 2-position. This resin composition for dense fuel cell separators enables the achievement of a dense separator for fuel cells, which satisfies a predetermined performance even in cases where the separator is compression molded in a short time that is less than 10 seconds.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 31, 2021
    Inventors: Fumio Tanno, Yasuhito Nakagawa
  • Patent number: 11094942
    Abstract: The present disclosure relates to an electrode which is manufactured with ease and causes little damage during storage, and a method for manufacturing the same. The electrode includes a metallic current collector and an electrode mixture, wherein the current collector has a recess formed by denting the remaining portions except edge portions having a width, and the electrode mixture is embedded in the recess.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 17, 2021
    Inventors: Dae-Soo Kim, Dong-Kyu Kim, Min-Kyung Kim
  • Patent number: 11094987
    Abstract: Disclosed is a battery pack, which includes a battery module having a plurality of battery cells; a pack housing configured to accommodate the battery module; and a flexible rib formed at an inner side of the pack housing and having elasticity, the flexible rib pressing the battery module in contact with the battery module.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: August 17, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Hyun-Chul Choi, Jun-Kyu Park, Jun-Yeob Seong
  • Patent number: 11075384
    Abstract: A battery cell includes an anode, a cathode, and a separator between the anode and the cathode, wherein at least one of the anode or the cathode includes at least a carbon fiber ply comprising carbon fibers, the carbon fiber ply having a thickness of less than 90 micrometers. Also disclosed are a battery and an aircraft including such battery cell, and a method for manufacturing such battery cell.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: July 27, 2021
    Assignees: Airbus Defence and Space GmbH, Airbus Operations GmbH
    Inventors: Peter Linde, Leif Asp, Dan Zenkert, Maciej Wysocki, Fredrik Ohlsson, Christian Metzner
  • Patent number: 11075395
    Abstract: Disclosed is a fuel cell membrane electrode assembly (MEA) embodiment including an anode layer; at least one exchange membrane that is disposed on the anode layer as either a single-layered structure including one exchange membrane or a multi-layered structure including a plurality of exchange membranes, each exchange membrane of the at least one exchange membrane consisting of a film comprising hexagonal boron, and the at least one exchange membrane having a total thickness ranging from 0.3 to 3 nm; an interfacial binding layer that completely covers an exposed surface of one exchange membrane which is obverse to the anode layer and that consists of poly(methylmethacrylate) (PMMA) as a binder material; and a cathode layer formed on the interfacial binding layer. Alternately, a fuel cell membrane electrode embodiment may completely eliminate the interfacial binding layer and both embodiments provide superior fuel cell performance.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 27, 2021
    Assignee: UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Hyeon Suk Shin, Seong In Yoon, Gwangwoo Kim, Tae-Young Kim, Dong Jun Seo
  • Patent number: 11063291
    Abstract: A sulfide-based solid electrolyte contains a nickel (Ni) element and a halogen element. For example, a sulfide-based solid electrolyte can include, with respect to 100 parts by mole of a mixture of lithium sulfide (Li2S) and diphosphorus pentasulfide (P2S5), 5 parts by mole to 20 parts by mole of nickel sulfide (Ni3S2), and 5 parts by mole to 40 parts by mole of lithium halide.
    Type: Grant
    Filed: April 9, 2017
    Date of Patent: July 13, 2021
    Assignee: Hyundai Motor Company
    Inventors: Ju Young Sung, Ho Taek Lee, Jae Min Lim, Yong Jun Jang
  • Patent number: 11056682
    Abstract: Provided is a positive electrode active material particle including a core that includes lithium cobalt oxide represented by the following Chemical Formula 1; and a shell that is located on the surface of the core and includes lithium cobalt phosphate represented by the following Chemical Formula 2, wherein the shell has a tetrahedral phase: LiaCo(1-x)MxO2-yAy??(1) wherein M is at least one of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb, or Ni, A is oxygen-substitutional halogen, and 0.95?a?1.05, 0?x?0.2, 0?y?0.2, and 0?x+y?0.2, LibCoPO4??(2) wherein 0?b?1.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 6, 2021
    Inventors: Younguk Park, Chi Ho Jo, Bo Ram Lee, Sungbin Park, Hyuck Hur, Wang Mo Jung
  • Patent number: 11050088
    Abstract: An object of the present disclosure is to provide a liquid electrolyte for a fluoride ion battery in which decomposition of a solvent is restrained. The present disclosure attains the object by providing a liquid electrolyte for a fluoride ion battery comprising a plurality of carbonate-based solvents and a fluoride salt, wherein the plurality of carbonate-based solvents contain: i) only propylene carbonate (PC) and dimethyl carbonate (DMC), ii) only ethylene carbonate (EC) and ethyl methyl carbonate (EMC), or iii) only ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC).
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 29, 2021
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Takeshi Abe
  • Patent number: 11050061
    Abstract: The present invention provides: a conductive material dispersed liquid containing a conductive material, a dispersant, and a dispersion medium, wherein the conductive material comprises bundle-type carbon nanotubes having a bulk density in a range of 10-50 kg/m3 and a conductivity satisfying the conditions of Equation 1 below, thereby exhibiting excellent dispersibility and conductivity; and a lithium secondary battery, which is manufactured using the conductive material dispersed liquid and thus can exhibit excellent battery functions, especially, excellent output characteristics at low temperatures: ?X?10 log R??0.6X??[Equation 1] (in Equation 1 above, X is a bulk density of the carbon nanotubes, and R is a powder resistance of the carbon nanotubes under a pressure of 10 to 65 MPa.).
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 29, 2021
    Inventors: Ye Lin Kim, Jong Heon Seol, Kyung Yeon Kang, Sang Hoon Choy, Ji Hee Woo, Dong Hyun Cho
  • Patent number: 11031587
    Abstract: A negative electrode material for a lithium ion battery, including silicon-containing particles, artificial graphite particles and a carbonaceous material, wherein at least part of the silicon-containing particles, the artificial graphite particles and the carbonaceous material form composite particles; wherein the silicon-containing particles are silicon particles having a SiOx (0<x?2) layer on the particle surface, having an oxygen content of 1.0 mass % or more and 18.0 mass % or less, and mainly containing particles having a primary particle diameter of 200 nm or less; wherein the artificial graphite particles are non-flaky artificial graphite particles and have a 50% particle diameter in a volume-based cumulative particle size distribution, D50, of 1.0 ?m or more and 15.0 ?m or less. Also disclosed is a lithium-ion battery including a negative electrode using the negative electrode material.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: June 8, 2021
    Assignees: SHOWA DENKO K. K., UMICORE
    Inventors: Nobuaki Ishii, Arihiro Muto, Yasunari Otsuka, Masataka Takeuchi, Dirk Van Genechten, Stijn Put