Patents Examined by Yoshitoshi Takeuchi
  • Patent number: 11646455
    Abstract: A secondary battery includes a positive electrode sheet which includes a positive-electrode current collector, a positive-electrode active material layer, and a coating layer arranged between the positive-electrode current collector and the positive-electrode active material layer. The coating layer includes a conductive agent and a copolymer.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: May 9, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huang Tang, Ming Zhang, Hao Dong, Qifan Wu, De Lin
  • Patent number: 11641030
    Abstract: A solid-state ion conductor includes a compound of Formula 1: Li16+(5?n)*a?(2+m)*bM2?aXnaN8O1?bAmb??Formula 1 wherein, in Formula 1, M is Ta, Nb, V, or a combination thereof, X is an element having an oxidation state of n, wherein n is +1, +2, +3, +4, or a combination thereof, A is an element having an oxidation state of m, wherein m is ?1, ?2, or a combination thereof, and 0<a?2 and 0?b?1.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: May 2, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yan Wang, Lincoln Miara
  • Patent number: 11637280
    Abstract: Provided are methods of producing a negative electrode including comminuting Li-Group IVA alloy particles in a solvent to a desired particle size distribution range, exposing surfaces of the Li-Group IVA alloy particles to a monomer or polymer surface modifier present during the comminution process, the surface modifier forming a continuous coating on an exposed surface of the Li-Group IVA alloy particles, removing the solvent, and adding the surface-modified Li-Group IVA alloy particles to a negative electrode material by a coating process.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 25, 2023
    Assignee: Kratos LLC
    Inventors: Timothy D. Newbound, Richard Owen Crowther, Reza Kavian, Bruce Andrew Kraay, Jeff A. Norris
  • Patent number: 11629422
    Abstract: The present invention relates to an electrolytic copper foil for a secondary battery, having excellent flexural resistance, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery has excellent flexural resistance even without the use of many additives in a copper electrolyte when producing a copper foil. The electrolytic copper foil for a secondary battery according to the present invention is an electrolytic copper foil for a secondary battery, which is produced from a plating solution, containing total organic carbon (TOC), cobalt and arsenic, by using a drum and is coated with a negative electrode active material, wherein the ratio between the TOC, cobalt and arsenic contained in the electrolytic copper foil follows the following formula 1: TOC/(cobalt+arsenic)=1.30-1.55.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 18, 2023
    Assignee: ILJIN MATERIALS CO., LTD.
    Inventors: Sun Hyoung Lee, Tae Jin Jo, Seul-Ki Park, Ki Deok Song
  • Patent number: 11631893
    Abstract: This disclosure provides a battery including a cathode an anode positioned opposite the cathode. The anode includes a hybrid artificial solid-electrolyte interphase (A-SEI) layer encapsulating the anode. The hybrid A-SEI layer includes a first active component, a second active component disposed on the first active component, and a plurality of carbon-containing aggregates interwoven throughout the first and second active components and configured to inhibit growth of Li dendritic structures from the anode towards the cathode. A separator is positioned between the anode and the cathode. The cathode includes a porous carbon-based structure configured to expand in a presence of polysulfide (PS) shuttle within one or more portions of the battery. An electrolyte is dispersed between the anode and the cathode and in contact with both the anode and the cathode. The plurality of carbon-containing aggregates can include a polymer, which includes a cross-linked polymeric network.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: April 18, 2023
    Assignee: Lyten, Inc.
    Inventors: Elena Rogojina, Qianwen Huang, Jerzy Gazda, Jeffrey Bell, Bruce Lanning, Michael W. Stowell, Prashanth Jampani Hanumantha, James McKinney, George Clayton Gibbs
  • Patent number: 11626593
    Abstract: This negative electrode comprises an electrode current collector, and an electrode mixture layer provided on a surface of the electrode current collector. When, with respect to the thickness direction of the electrode mixture layer, a range from the surface on the side of the electrode current collector to 40% of the thickness of the electrode mixture layer is defined as a first region, and a range from the surface on the side opposite to the electrode current collector to 40% of the thickness of the electrode mixture layer is defined as a second region, the first region and the second region have different volume change ratio upon charge and discharge, and the region having the larger volume change ratio upon charge and discharge has a higher content of a solid inorganic filler and a lower content of a hollow inorganic filler than the region having the smaller volume change ratio.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 11, 2023
    Assignees: PANASONIC HOLDINGS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto Onodera, Katsunori Yanagida, Yo Kato
  • Patent number: 11616228
    Abstract: The non-aqueous electrolyte secondary cell according to the present invention comprises: an electrode body constituted by a positive electrode including a positive electrode active material comprising a lithium-containing transition metal oxide, a negative electrode including a negative electrode current collector onto which metallic lithium is deposited during charging, and a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The molar ratio of the total lithium content of the positive electrode and the negative electrode to the transition metal content of the positive electrode is 1.1 or less. During discharging, the positive electrode capacitance ?(mAh) of the positive electrode and the volume X (mm3) of a hollow constituted by a space formed in the center of the electrode body 14 satisfy the relationship 0.5?X/??4.0.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 28, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Harada, Hiroshi Minami
  • Patent number: 11611098
    Abstract: A reaction cell for a flow battery having flow channels positioned within a recess of a non-porous and non-brittle housing that is also a dielectric. Positioning the flow channels within the recess eliminates the need for end plates, gaskets, and insulators of conventional designs. A current collector and an electrode within the recess have areas approximately equal to the area of the recess such that they fit within the recess and maximize the contact area between them.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: March 21, 2023
    Assignee: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Jonghyun Park, Mohammed Abdulkhabeer Al-Yasiri
  • Patent number: 11600836
    Abstract: Disclosed here is a supported catalyst comprising a thermally stable core, wherein the thermally stable core comprises a metal oxide support and nickel disposed in the metal oxide support, wherein the metal oxide support comprises at least one base metal oxide and at least one transition metal oxide or rare earth metal oxide mixed with or dispersed in the base metal oxide. Optionally the supported catalyst can further comprise an electrolyte removing layer coating the thermally stable core and/or an electrolyte repelling layer coating the electrolyte removing layer, wherein the electrolyte removing layer comprises at least one metal oxide, and wherein the electrolyte repelling layer comprises at least one of graphite, metal carbide and metal nitride. Also disclosed is a molten carbonate fuel cell comprising the supported catalyst as a direct internal reforming catalyst.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: March 7, 2023
    Assignee: FuelCell Energy, Inc.
    Inventors: Jin-Yun Wang, Mohammad Farooque, Ramakrishnan Venkataraman, Chao-Yi Yuh, April Corpuz
  • Patent number: 11600876
    Abstract: A lithium-sulfur battery includes a casing, a top lid circumferentially welded to the casing, a negative contact surface positioned opposite the top lid, a positive terminal disposed within the casing, welded to the top lid, and configured as a mandrel, a glass insulator circumferentially wound around the mandrel, and a jelly roll including at least an anode and a cathode wound around the mandrel. The jelly roll may also include a top surface not in contact with the top lid, a bottom surface partially in contact with the negative contact surface, and partially in contact with a plurality of non-hollow carbonaceous spherical particles disposed between the bottom surface of the jelly roll and the negative contact surface. At least some of the non-hollow carbonaceous spherical particles may provide one or more electrically-conductive pathways between the bottom surface and the negative contact surface.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: March 7, 2023
    Assignee: Lyten, Inc.
    Inventor: Jerzy Gazda
  • Patent number: 11594717
    Abstract: An all-solid lithium secondary battery, including: a cathode including a cathode active material layer, a solid electrolyte layer; and an anode including an anode active material layer, which forms an alloy or a compound with lithium, wherein the cathode, the solid electrolyte is between the cathode and the anode, wherein the anode active material layer includes about 33 weight percent to about 95 weight percent of an amorphous carbon with respect to the total mass of an anode active material in the anode active material layer, and a ratio of the initial charge capacity of the cathode active material layer to the initial charge capacity of the anode active material layer satisfies 0.01<b/a<0.5, wherein a is the initial charge capacity of the cathode active material layer, and b is the initial charge capacity of the anode active material layer.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Naoki Suzuki, Nobuyoshi Yashiro, Yuichi Aihara
  • Patent number: 11588179
    Abstract: A non-aqueous electrolyte secondary battery which uses a non-aqueous electrolyte solution in which a main component of a non-aqueous solvent is a fluorinated solvent, and by which it is possible to suitably prevent a decrease in battery capacity. A method for producing the non-aqueous electrolyte solution disclosed here includes a fluorinated solvent provision step for preparing the fluorinated solvent, a highly polar solvent provision step for preparing a highly polar solvent having a relative dielectric constant of 40 or more, a LiBOB dissolution step for preparing a highly concentrated LiBOB solution by dissolving LiBOB in the highly polar solvent at a concentration that exceeds the saturation concentration in the fluorinated solvent, and a mixing step for mixing the fluorinated solvent with the highly concentrated LiBOB solution.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: February 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Kohyama, Koji Okuda
  • Patent number: 11581540
    Abstract: A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (P2/P4) of about 0.3 to about 0.4, wherein P2 refers to the 101 peak of a rhombohedral crystal grain and P4 refers to the 101 peak of a hexagonal crystal grain, as measured by X-ray diffraction.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: February 14, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Cheol-Hee Hwang
  • Patent number: 11569524
    Abstract: Provided are a secondary battery and a battery pack including the secondary battery. A sealing plate has a positive electrode terminal attachment hole. A positive electrode terminal penetrates the positive electrode terminal attachment hole. An external conductive member is connected to a portion of the positive electrode terminal located on the battery outer side with respect to the sealing plate. The conduction path between a positive electrode plate and the positive electrode terminal is provided with a current interrupting mechanism. A first insulating member made of resin is disposed between the sealing plate and the positive electrode terminal. A second insulating member having higher thermal resistance than the first insulating member is disposed between the external conductive member and the sealing plate.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: January 31, 2023
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Yohei Muroya, Hiroyuki Yamada
  • Patent number: 11569493
    Abstract: A positive electrode including a positive electrode current collector, an intermediate layer disposed on the positive electrode current collector and including a conductive agent and inorganic particles, and a positive electrode mixture layer disposed on the intermediate layer and including a positive electrode active material and a hydrogen phosphate salt represented by the general formula MaHbPO4 (wherein a satisfies 1?a?2, b satisfies 1?b?2, and M includes at least one element selected from alkali metals and alkaline earth metals), the positive electrode satisfying 0.5?X?3.0, 1.0?Y?7.0, and 0.07?X/Y?3.0 wherein X is the mass ratio (mass %) of the hydrogen phosphate salt relative to the total mass of the positive electrode active material and Y is the mass ratio (mass %) of the conductive agent relative to the total mass of the intermediate layer.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 31, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Ko, Yasunori Baba, Katsunori Yanagida, Nobuhiro Hirano, Fumiharu Niina
  • Patent number: 11539074
    Abstract: This disclosure provides a battery comprising a cathode and an anode positioned opposite the cathode. A hybrid artificial solid-electrolyte interphase (A-SEI) layer is deposited on the anode and includes a plurality of active components. A blended material is interwoven throughout the plurality of active components and configured to inhibit growth of Lithium (Li) dendritic structures from the anode to the cathode. The blended material includes a combination of crystalline sp2-bound carbon domains of graphene sheets and a plurality of flexible wrinkle areas positioned at joinder points of two of more of the crystalline sp2-bound carbon domains of graphene sheets and a polymeric matrix configured to bind the plurality of active components and the blended material together. An electrolyte is in contact with the hybrid A-SEI and the cathode and a separator is positioned between the anode and the cathode. The blended material includes curable carboxylate salts of metals.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: December 27, 2022
    Assignee: Lyten, Inc.
    Inventors: Elena Rogojina, Qianwen Huang, Jerzy Gazda, Jeffrey Bell, Bruce Lanning, Michael W. Stowell, Prashanth Jampani Hanumantha, James McKinney, George Clayton Gibbs
  • Patent number: 11527745
    Abstract: The present disclosure provides methods of compensation for capacity loss resulting from cycle-induced lithium consumption in an electrochemical cell including at least one electrode. Such methods may include adding a lithiation additive to the at least one electrode so as to create a lithium source. The lithium source compensates for cycle-induced lithiation loss such that the electrochemical cell having the lithiation additive experiences total capacity losses of less than or equal to about 5% of an initial capacity prior to cycling of lithium. The lithiation additive includes a lithium silicate represented by the formula LiuHr, where Hr=Liy-uSiOz and where 0?y?3.75 and 0?z?2 and u is a useable portion of y, 0?u?y. The lithium source may include z 4 ? L ? i 4 ? Si ? O 4 and LimSi, where 0?m?4.4.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: December 13, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mark W. Verbrugge, Xingcheng Xiao, Jiagang Xu
  • Patent number: 11522215
    Abstract: To provide a method for production of an all-solid-state battery in which cracking of the ends of the electrodes can be suppressed even if a negative electrode active material layer including lithium-titanium oxide is roll-pressed, provided is a method for the production of an all-solid-state battery, including roll-pressing to consolidate a negative electrode active material layer; wherein the all-solid-state battery has a structure including a laminate of a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, the negative electrode active material layer, and a negative electrode current collector layer in this order, the negative electrode active material layer includes a lithium-titanium oxide as a negative electrode active material, and prior to the roll-pressing, a stress relaxation rate of the negative electrode active material layer is 32.5% or more.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kota Nakamura, Hideki Asadachi, Norihiro Ose, Yoshihide Enomoto, Tomoya Suzuki
  • Patent number: 11522216
    Abstract: A solid electrolyte material is represented by the following compositional formula (1): Li3-3?-2aY1+?-aMaCl6-x-yBrxIy where, M is at least one selected from the group consisting of Ta and Nb; and ?1<?<1, 0<a<1.2, 0<(3?3??2a), 0<(1+??a), 0?x?6, 0?y?6, and (x+y)?6 are satisfied.
    Type: Grant
    Filed: June 27, 2020
    Date of Patent: December 6, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yusuke Nishio, Tetsuya Asano, Akihiro Sakai, Masashi Sakaida, Akinobu Miyazaki, Shinya Hasegawa
  • Patent number: 11508966
    Abstract: This disclosure provides a battery including a cathode, an anode positioned opposite the cathode and a carbon interface layer. The carbon interface layer includes an electrically insulating flaky carbon layer conformally encapsulating the anode. A plurality of carbon nano-onions (CNOs) defining a plurality of interstitial pore volumes are interspersed throughout the electrically insulating flaky carbon layer. An electrolyte is in contact with the carbon interface layer and the cathode. A separator is positioned between the anode and the cathode. The electrically insulating flaky carbon layer can include graphene oxide (GO). The plurality of interstitial pore volumes can be configured to transport lithium (Li) ions between the anode and the cathode via the plurality of interstitial pore volumes in a bulk phase of the electrolyte. The carbon interface layer can be configured to inhibit growth of Li dendritic structures from the anode towards the cathode.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: November 22, 2022
    Assignee: Lyten, Inc.
    Inventors: Jeffrey Bell, You Li, Jesse Baucom, John Thorne, Qianwen Huang, Anurag Kumar, Jerzy Gazda, Bruce Lanning, Michael W. Stowell, Prashanth Jampani Hanumantha, James McKinney, George Clayton Gibbs