The Alkali Metal Is Lithium Patents (Class 429/231.95)
  • Patent number: 11145853
    Abstract: A secondary battery includes a power generation element that includes a positive electrode having a collector on which a positive electrode active material layer is disposed, an electrolyte layer for retaining an electrolyte, and a negative electrode having a collector on which a negative electrode active material layer is disposed. The negative electrode active material layer has an area greater than that of the positive electrode active material layer. The negative electrode active material layer has a facing portion that faces a positive electrode active material layer with an electrolyte layer interposed by therebetween, and a non-facing portion that is positioned on an outer periphery of the facing portion and does not face the positive electrode active material layer. The non-facing portion has a stretching rate that is less than a stretching rate of the facing portion.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 12, 2021
    Assignee: Envision AESC Japan Ltd.
    Inventors: Takehiro Maeda, Yoshinori Naruoka
  • Patent number: 11133493
    Abstract: Polymer composition for an electrode, method, and a lithium-ion battery including same are provided. This composition includes an active material having a graphite usable in the anode, an electrically conductive filler and a cross-linked elastomer binder that includes a hydrogenated acrylonitrile butadiene copolymer (HNBR). The binder includes a non-hydrogenated acrylonitrile butadiene copolymer (NBR) and/or a HNBR with an acrylonitrile content that is at least 40% by weight and cross-linked by thermal oxidation. This method includes: a) mixing the active material, the binder in a non-cross-linked state and the electrically conductive filler, to obtain a precursor mixture of the composition, b) depositing the mixture on a metal current collector so that the mixture forms a non-cross-linked film, then c) thermal oxidation of the non-cross-linked film under an atmosphere containing oxygen at a temperature of between 200 and 300° C., to obtain the electrode in which the binder is cross-linked.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 28, 2021
    Assignee: Hutchinson
    Inventors: Philippe Sonntag, Julie Courtat, Marc Zimmermann, Ksenia Astafyeva, Bruno Dufour, David Ayme-Perrot
  • Patent number: 11121397
    Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 14, 2021
    Assignee: Sion Power Corporation
    Inventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens
  • Patent number: 11111590
    Abstract: System and methods for producing lithium metal from an anodic half-cell and a cathodic half-cell with a lithium permeable membrane therebetween.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: September 7, 2021
    Assignee: UChicago Argonne, LLC
    Inventors: John N. Hryn, Patricia Anne Ignacio-deLeon, Li Tang, Daniel Yoav Arenas
  • Patent number: 11101465
    Abstract: Systems and methods are provided for a reaction barrier between an electrode active material and a current collector. An electrode may comprise an active material, a metal foil, and a polymer. The polymer (such as polyamide-imide (PAI)) may be configured to provide a carbonized barrier between the active material and the metal foil after pyrolysis.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 24, 2021
    Assignee: Enevate Corporation
    Inventors: Benjamin Yong Park, Rahul R. Kamath, Fred Bonhomme
  • 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: 11094966
    Abstract: Disclosed herein are embodiments of an electrolyte that is stable and efficient at high voltages. The electrolyte can be used in combination with certain cathodes that exhibit poor activity at such high voltages with other types of electrolytes and can further be used in combination with a variety of anodes. In some embodiments, the electrolyte can be used in battery systems comprising a lithium cobalt oxide cathode and lithium metal anodes, silicon anodes, silicon/graphite composite anodes, graphite anodes, and the like.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 17, 2021
    Assignee: Battelle Memorial Institute
    Inventors: Xiaodi Ren, Wu Xu, Ji-Guang Zhang
  • Patent number: 11081727
    Abstract: Provided is a solid electrolyte containing a crystal phase having a chemical composition Li7(1+x)?3?2+aO12+3.5x+b, where ? includes Pr, ? includes Zr, ?0.05?x?0.35, ?0.5?a?0.5, and ?0.5?b?0.5.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 3, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Eiichi Koga, Yoshiko Higashi
  • Patent number: 11075373
    Abstract: A positive electrode for a metal secondary battery includes a positive current collector; and a positive active material layer disposed on the positive current collector, wherein the positive active material layer includes: a positive active material, a salt including an alkali metal salt, an alkaline earth metal salts, or a combination thereof, and a polymeric first binder including a repeating unit represented by Formula 1 wherein R is a substituted or unsubstituted C2-C5 alkylene group, a substituted or unsubstituted C2-C6 alkoxylene group, a substituted or unsubstituted C2-C6 alkoxycarbonylene group, a substituted or unsubstituted C2-C6 alkylene oxide group, or a combination thereof, and n is an integer from 90 to 2,700. Also a metal secondary battery including the same.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 27, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Dongjin Lee, Joonseon Jeong, Chansu Kim, Yooseong Yang, Taehwan Yu
  • Patent number: 11075383
    Abstract: Material compositions are provided that may comprise, for example, a vertically aligned carbon nanotube (VACNT) array, a conductive layer, and a carbon interlayer coupling the VACNT array to the conductive layer. Methods of manufacturing are provided. Such methods may comprise, for example, providing a VACNT array, providing a conductive layer, and bonding the VACNT array to the conductive layer via a carbon interlayer.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: July 27, 2021
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Gleb Nikolayevich Yushin, Kara Linn Evanoff
  • Patent number: 11069888
    Abstract: A simple solution processing method is developed to achieve uniform and scalable stabilized lithium metal powder coating on Li-ion negative electrode. A solvent and binder system for stabilized lithium metal powder coating is developed, including the selection of solvent, polymer binder and enhancement of polymer concentration. The enhanced binder solution is 1% concentration of polymer binder in xylene, and the polymer binder is chosen as the mixture of poly(styrene-co-butadiene) rubber (SBR) and polystyrene (PS). Long-sustained, uniformly dispersed stabilized lithium metal powder suspension can be achieved with the enhanced binder solution. A uniform stabilized lithium metal powder coating can be achieved with simple doctor blade coating method and the resulting stabilized lithium metal powder coating can firmly glued on the anode surface.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: July 20, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Gao Liu, Sergey D. Lopatin, Eric H. Liu, Ajey M. Joshi, Guo Ai, Zhihui Wang, Hui Zhao, Donghai Wang
  • Patent number: 11063247
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 13, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Gyeong Jae Heo, Hyun Jong Yu, Seung Hyun Choi
  • Patent number: 11056726
    Abstract: Provided herein is a positive temperature coefficient film comprising an inorganic positive temperature coefficient compound. Also provided herein are a positive temperature coefficient electrode, a positive temperature coefficient separator, and a positive temperature coefficient lithium secondary battery, each of which comprises the positive temperature coefficient film.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: July 6, 2021
    Assignee: American Lithium Energy Corporation
    Inventors: Jiang Fan, Dengguo Wu
  • Patent number: 11050057
    Abstract: Provided are an electrode active material for a secondary battery containing a first electrode active material and a second electrode active material, in which the first electrode active material expands during charging and contracts during discharging, the second electrode active material contracts during charging and expands during discharging, some of particles constituting the first electrode active material and some of particles constituting the second electrode active material are in contact with each other, and an interface in which the particles constituting the first active material and the particles constituting the second active material are in contact with each other forms a solid solution to form a crystal portion, a solid electrolyte composition, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery for which the electrode active material for a secondary battery is used, and methods for manufacturing the electrode active material for a secondary ba
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: June 29, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Kaga, Hiroaki Mochizuki
  • Patent number: 11043666
    Abstract: Disclosed are a composite material for cathode materials in a secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. A composite material for cathode materials in a secondary battery includes: a charge carrier ion compound-carbon composite including a carbon particle and a charge carrier ion compound particle represented by general formula of AxDy and dispersed on a surface of the carbon particle; and a transition metal compound represented by a general formula of MzRw. In the general formulae of AxDy and MzRw, A, D, M, R, x, y, z, and w are as defined in the detailed description.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 22, 2021
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Kisuk Kang, Sungkyun Jung, Taeghwan Hyeon, Myounghwan Oh, Min Gee Cho
  • Patent number: 11043696
    Abstract: Metal alloy layers on substrates. The metal-alloy layers (e.g., lithium-metal layers, sodium-metal layers, and magnesium-metal layers) can be disposed on, for example, a solid-state electrolyte material. The metal-alloy layers can be used in, for example, solid-state batteries. A metal alloy layer can be an anode or part of an anode of a solid state battery.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: June 22, 2021
    Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARK
    Inventors: Liangbing Hu, Eric D. Wachsman, Yunhui Gong, Kun Fu, Wei Luo, Chengwei Wang
  • Patent number: 11038197
    Abstract: The present invention is directed to aqueous and hybrid aqueous electrolytes that comprise a lithium salt. The present invention is also directed to methods of making the electrolytes and methods of using the electrolytes in batteries and other electrochemical technologies.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: June 15, 2021
    Assignees: University of Maryland, College Park, The United States of America as Represented By The Secretary of the Army
    Inventors: Kang Xu, Arthur Von Wald Cresce, Oleg A. Borodin, Chunsheng Wang, Liumin Suo
  • Patent number: 11024844
    Abstract: An electrochemically active material includes an active phase that includes silicon, and at least one inactive phase having a Scherrer Grain Size of greater than 5 nanometers. Each inactive phase of the material having a Scherrer Grain Size of greater than 5 nanometers has a lattice mismatch to Li15Si4 of greater than 5%.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 1, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Xiaohua Ma, Mark N. Obrovac
  • Patent number: 11024849
    Abstract: Provided is a lithium secondary battery containing an anode, a cathode, a porous separator disposed between the anode and the cathode, an electrolyte, and a lithium ion reservoir disposed between the anode and the porous separator and configured to receive lithium ions from the cathode when the battery is charged and enable the lithium ions to enter the anode in a time-delayed manner, wherein the reservoir comprises a conducting porous framework structure having pores (pore size from 1 nm to 500 ?m) and lithium-capturing groups residing in the pores, wherein the lithium-capturing groups are selected from (a) redox forming species that reversibly form a redox pair with a lithium ion; (b) electron-donating groups interspaced between non-electron-donating groups; (c) anions and cations wherein the anions are more mobile than the cations; or (d) chemical reducing groups that partially reduce lithium ions from Li+1 to Li+?, wherein 0<?<1.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 1, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Hui He, Chueh Liu, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11024840
    Abstract: Provided is a rechargeable alkali metal-sulfur cell comprising an anode active material layer, a cathode active material layer, a discrete anode-protecting layer disposed between the anode active material layer and the cathode active material layer, and an electrolyte (but no porous separator), wherein the anode-protecting layer has a thickness from 1 nm to 100 ?m and comprises an elastomer having a fully recoverable tensile elastic strain from 2% to 1,000% and a lithium ion conductivity from 10?8 S/cm to 5×10?2 S/cm when measure at room temperature. The cathode layer comprises a sulfur-containing material selected from a sulfur-carbon hybrid, sulfur-graphite hybrid, sulfur-graphene hybrid, conducting polymer-sulfur hybrid, metal sulfide, sulfur compound, or a combination thereof. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, no known dendrite issue, no dead lithium or dead sodium issue, and a long cycle life.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: June 1, 2021
    Assignee: Global Graphene Group, Inc.
    Inventor: Bor Z. Jang
  • Patent number: 11024877
    Abstract: Provided herein are apparatus, systems, and methods of powering electric vehicles. A battery pack can be disposed in an electric vehicle to power the electric vehicle. The apparatus can include a battery cell. A battery cell can have a housing that defines a cavity. The battery cell can have a solid electrolyte. The electrolyte can be arranged within the cavity. The battery cell can have a cathode disposed within the cavity along a first side of the electrolyte. The battery cell can have a functional layer disposed within the cavity along a second side of the electrolyte. A first side of the functional layer can be in contact with a second side of the electrolyte. The functional layer can form an alloy with lithium material received via the electrolyte. The battery cell can have a scaffold layer disposed within the cavity along a second side of the functional layer.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: June 1, 2021
    Assignee: TeraWatt Technology Inc.
    Inventors: Ken Ogata, Hiroshi Imoto
  • Patent number: 10998141
    Abstract: A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO2 is used as the negative electrode active material. The theoretical capacity of amorphous PAHs greatly exceeds that of a graphite based carbon material. Thus, the use of amorphous PAHs enables the negative electrode active material to have a higher capacity than in the case of using the graphite-based carbon material. Further, addition of at least one of the carrier ion storage metal, the Sn compound, the carrier ion storage alloy, the metal compound, Si, Sb, and SiO2 to the amorphous PAHs enables the negative electrode active material to have a higher capacity than the case of only using the amorphous PAHs.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 4, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yumiko Saito, Rie Yokoi, Mayumi Mikami
  • Patent number: 10991922
    Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 27, 2021
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Christophe Dubarry, Francoise Geffraye, Sami Oukassi
  • Patent number: 10991941
    Abstract: A method of producing a composite material for a lithium ion secondary battery disclosed here includes a step of preparing a mixture which contains a positive electrode active material and an inorganic phosphorus compound constituting a composite material and in which the solid content is 90 mass % or higher (a mixture preparing step S10); and a step in which the mixture is stirred at a predetermined stirring rate or higher, and a coating made of lithium phosphate from at least a part of a lithium compound present on the surface of the positive electrode active material and the inorganic phosphorus compound is formed on the surface of the positive electrode active material (a coating forming step S20). Here, the composite material includes the positive electrode active material and the coating formed on the surface of the positive electrode active material.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 27, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomohiro Yokoyama
  • Patent number: 10985371
    Abstract: A negative electrode includes a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a reflectance Ra in a range of 7.0?Ra?14.8% at a wavelength of 550 nm. A lithium ion secondary battery includes the negative electrode, a positive electrode, a separator, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a nonaqueous solvent and an electrolyte, the nonaqueous solvent contains ethylene carbonate, and the ethylene carbonate is contained in a range of 10 to 30 vol. % in the entire nonaqueous solvent.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 20, 2021
    Assignee: TDK CORPORATION
    Inventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
  • Patent number: 10971731
    Abstract: A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and an Al—F bond is present in the aluminum oxide layer.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuki Matsushita
  • Patent number: 10971720
    Abstract: A positive electrode active material includes secondary particles. The secondary particles include a plurality of primary particles. The primary particles include a lithium-containing composite metal oxide. Inside the secondary particles, an electron conducting oxide is disposed at at least a part of a grain boundary between the primary particles. The electron conducting oxide has a perovskite structure.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: April 6, 2021
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Metal Mining Co., Ltd.
    Inventors: Ryuta Sugiura, Satoshi Kanada, Tetsutaro Hayashi, Taira Aida
  • Patent number: 10964953
    Abstract: A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and the current collecting layer has a porous structure on a surface of the aluminum oxide layer side.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 30, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuki Matsushita
  • Patent number: 10957905
    Abstract: A silicon based material in the form of sheet-like silicon porous particles in an electrically conductive material matrix wherein said silicon particles contain nano-sized pores, and a method of producing thereof, are disclosed. The material and the method allow obtaining Li ion batteries with high electric charge capacity and improved cycling performance of the battery anode.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: March 23, 2021
    Inventors: Yunjun Li, Igor Pavlovsky, Mohshi Yang
  • Patent number: 10944106
    Abstract: The present application relates to a metal oxide and synthesis of a lithium ion battery. Specifically, the present application selects a cobalt oxide compound, which uses Co3O4 as a main body, as a precursor of lithium cobalt oxide, and anion doping is performed in particles of Co3O4 to obtain a doped precursor for lithium cobalt oxide. The general formula of the precursor can be expressed as Co3(O1-yMy)4, where about 0<y<about 0.2, and wherein the anion M comprises at least one of F, P, S, Cl, N, As, Se, Br, Te, I or At. The lithium ion battery with a cathode made of lithium cobalt oxide material prepared by using the precursor presents good cycle stability in a high voltage charge-discharge environment.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: March 9, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Pengwei Chen, Meng Wang, Leimin Xu, Liang Wang
  • Patent number: 10944096
    Abstract: A negative electrode for an electrochemical cell of a lithium metal battery may be manufactured by welding together a lithium metal layer and a metallic current collector layer. The lithium metal layer and the current collector layer may be arranged adjacent one another and in an at least partially lapped configuration such that faying surfaces of the layers confront one another and establish a faying interface therebetween at a weld site. A laser beam may be directed at an outer surface of the current collector layer at the weld site to melt a portion of the lithium metal layer adjacent the faying surface of the current collector layer and produce a lithium metal molten weld pool. The laser beam may be terminated to solidify the molten weld pool into a solid weld joint that physically bonds the lithium metal layer and the current collector layer together at the weld site.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: March 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Fang Dai, Hongliang Wang, Wayne Cai, Mei Cai, Michael P. Balogh
  • Patent number: 10944113
    Abstract: An electrode includes a current collector, a metal shell in direct contact with and encapsulating the current collector, green dendritic columnar growths extending out of the metal shell and having protrusions thereon, and active material in contact with the metal shell and having embedded therein the green dendritic columnar growths. The protrusions penetrate the active material to form a mechanical retainer that prevents delamination of the active material from the metal shell and define localized regions of increased current density during operation of the electrode that promote deposition of the active material first on the protrusions and then on areas of the green dendritic columnar growths adjacent to the protrusions such that the active material electrochemically adheres to the green dendritic columnar growths and the protrusions enlarge during repeated charge and discharge cycling of the electrode.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 9, 2021
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Melissa D. McIntyre, Adam Weisenstein, Kurt Salloux
  • Patent number: 10930967
    Abstract: A method for preparing an electrode for a lithium secondary battery including forming a primer layer including a conductor on a current collector; forming a patterned primer layer by forming a concave pattern through irradiating an ion beam over the whole primer layer surface; and forming an electrode layer including an electrode active material on the patterned primer layer.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: February 23, 2021
    Assignee: LG CHEM, LTD.
    Inventor: Hyunwoong Yun
  • Patent number: 10930972
    Abstract: A composite material of formula (I) is provided: (LPS)a(MPS)b??(I) wherein each of a and b is a mass % value from 1% to 99% such that a+b is 100%; (LPS) is a material selected from the group consisting of Li3PS4, Li7P3S11, Li10GeP2S11, and a material of formula (II): xLi2S.yP2S5.(100?x?y)LiX??(II) wherein X is I, Cl or Br, each of x and y is a mass % value of from 33.3% to 50% such that x+y is from 75% to 100% and the total mass % of Li2S, P2S5 and LiX is 100%; and (MPS) is a material of formula (III): mLi2S.nMS.oP2S5.(100?m?n?o)LiX??(III) wherein MS is a transition metal sulfide or a semi metal sulfide, X is I, Cl or Br, each of m, n and o is a mass % value greater than 0 such that (m+n+o) is from 75% to 100% and the total mass % of Li2S, P2S5 and LiX is 100%. Solid state batteries containing the composite material are also provided.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 23, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Timothy S. Arthur, Tomoya Matsunaga
  • Patent number: 10930920
    Abstract: To provide a negative electrode for a lithium ion battery having high energy density and excellent rapid charging characteristics. A negative electrode for a lithium ion battery, the negative electrode including a negative electrode current collector, a negative electrode active material layer formed on the surface of the negative electrode current collector, and a non-aqueous liquid electrolyte including an electrolyte containing lithium ions and a non-aqueous solvent, in which the negative electrode active material layer includes a negative electrode active material and voids, the voids are filled with the non-aqueous liquid electrolyte, and a proportion of the battery capacity based on a total amount of lithium ions in the non-aqueous liquid electrolyte existing in the negative electrode active material layer with respect to the battery capacity based on a total amount of the negative electrode active material is 3% to 17%.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 23, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kazuya Minami, Yusuke Nakashima, Yasuhiko Ohsawa, Yuki Kusachi, Hajime Satou, Hiroshi Akama, Hideaki Horie
  • Patent number: 10923712
    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.
    Type: Grant
    Filed: December 30, 2018
    Date of Patent: February 16, 2021
    Assignee: STOREDOT LTD.
    Inventors: Doron Burshtain, Nir Kedem, Daniel Aronov
  • Patent number: 10916754
    Abstract: A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a binder and a plurality of inorganic particles, wherein the binder includes a crosslinked binder. This separator may improve high temperature cycle performance, discharge characteristics and thermal resistance of an electrochemical device since the separator exhibits improved insolubility and impregnation to electrolyte and improved thermal resistance.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: February 9, 2021
    Assignees: LG Chem, Ltd., Toray Industries, Inc.
    Inventors: Jong-Hun Kim, Sang-Young Lee, Pil-Kyu Park, Jang-Hyuk Hong, Byoung-Jin Shin, In-Chul Kim
  • Patent number: 10916956
    Abstract: A battery includes an anode having an alkali metal as the active material, a cathode having, for example, iron disulfide as the active material, and an increased electrolyte volume.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 9, 2021
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Michael Pozin, Fred J. Berkowitz, Steven J. Specht, Yelena Kouznetsova, Bhupendra K. Patel, Yang Zhao, Haitao Chang
  • Patent number: 10910653
    Abstract: An anode for a lithium-based energy storage device such as a lithium-ion battery is disclosed. The anode includes an electrically conductive current collector comprising a metal oxide layer and a continuous porous lithium storage layer provided over the metal oxide layer. The continuous porous lithium storage layer includes at least 40 atomic % silicon, germanium or a combination thereof. A method of making the anode includes providing an electrically conductive current collector having an electrically conductive layer and a metal oxide layer provided over the electrically conductive layer. The metal oxide layer may have an average thickness of at least 0.05 ?m. A continuous porous lithium storage layer is deposited over the metal oxide layer by PECVD.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: February 2, 2021
    Assignee: Graphenix Development, Inc.
    Inventors: John C. Brewer, Kevin Tanzil, Paul D. Garman, Robert G. Anstey
  • Patent number: 10903491
    Abstract: A rechargeable lithium-ion battery disclosed herein comprises a positive electrode with a positive electroactive material that in a charged state comprises lithium iron (II) orthosilicate (Li2FeSiO4) and in a discharged state comprises FeSiO4 or LiFeSiO4. A negative electrode comprises phosphorene. A separator is disposed between the positive electrode and the negative electrode. An electrolyte has an organic solvent especially containing ether-based organic solvents and a lithium salt that provides a conductive medium for lithium ions to transfer between the positive electrode and the negative electrode. Such a rechargeable lithium-ion battery provides advantageous power delivery, long driving ranges, and fast charge to enhance widespread use of batteries, especially in vehicles. Furthermore, lithium plating can be minimized or avoided, even at low temperature charging. Methods of recharging a rechargeable lithium-ion battery at low temperatures are also disclosed.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: January 26, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xingcheng Xiao, Li Yang, Gayatri V. Dadheech, Gongshin Qi, Mark W. Verbrugge, Sherman H. Zeng
  • Patent number: 10892486
    Abstract: In an embodiment, a metal or metal-ion battery cell, includes anode and cathode electrodes, a separator electrically separating the anode and the cathode, and a solid electrolyte ionically coupling the anode and the cathode, wherein the solid electrolyte comprises a material having one or more rearrangeable chalcogen-metal-hydrogen groups that are configured to transport at least one metal-ion or metal-ion mixture through the solid electrolyte, wherein the solid electrolyte exhibits a melting point below about 350° C. In an example, the solid electrolyte may be produced by mixing different dry metal-ion compositions together, arranging the mixture inside of a mold, and heating the mixture while arranged inside of the mold at least to a melting point (e.g., below about 350° C.) of the mixture so as to produce a material comprising one or more rearrangeable chalcogen-metal-hydrogen groups.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: January 12, 2021
    Assignees: SILA NANOTECHNOLOGIES INC., GEORGIA TECH RESEARCH CORPORATION, THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Gleb Yushin, Kostiantyn Turcheniuk, Yiran Xiao, Ah-Young Song, Oleg Borodin, Naoki Nitta
  • Patent number: 10892409
    Abstract: The present invention relates to a switching device, a method of fabricating the same, and a nonvolatile memory device including the same. A switching device according to an embodiment of the present invention includes a first electrode; a second electrode; and a switching film which is disposed between the first electrode and the second electrode, and includes an electrically insulating matrix and a conductive path formed in the electrically insulating matrix. In this embodiment, the conductive path includes crystalline metal clusters dispersed in the electrically insulating matrix and a metal bridge connecting adjacent crystalline metal clusters.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: January 12, 2021
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Hyeong Joon Kim, Ji Woon Park, Young Seok Kim
  • Patent number: 10879528
    Abstract: The present invention relates to a negative electrode active material, a method of preparing the same, and a lithium secondary battery including the same. In particular, the present invention relates to a composite negative electrode active material that includes: a core capable of intercalating and deintercalating lithium ions; and a plurality of coating layers comprising two or more Si layers having different densities formed on a surface of the core, and thus has enhanced stability by minimizing the formation of cracks occurring by the repetition of charging and discharging, a method of preparing the same, and a lithium secondary battery including the same and thus exhibiting enhanced lifespan characteristics.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 29, 2020
    Inventors: Jung Hyun Choi, Yong Ju Lee, Eun Kyung Kim
  • Patent number: 10879513
    Abstract: Nanoporous composite separators are disclosed for use in batteries and capacitors comprising a nanoporous inorganic material and an organic polymer material. The inorganic material may comprise Al2O3, AlO(OH) or boehmite, AlN, BN, SiN, ZnO, ZrO2, SiO2, or combinations thereof. The nanoporous composite separator may have a porosity of between 35-50%. The average pore size of the nanoporous composite separator may be between 10-90 nm. The separator may be formed by coating a substrate with a dispersion including the inorganic material, organic material, and a solvent. Once dried, the coating may be removed from the substrate, thus forming the nanoporous composite separator. A nanoporous composite separator may provide increased thermal conductivity and dimensional stability at temperatures above 200° C. compared to polyolefin separators.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 29, 2020
    Assignee: Optodot Corporation
    Inventors: David W. Avison, Shreyans Shingi, Chandrakant C. Patel, Charles R. Comeau, Jr., Samuel Lim
  • Patent number: 10873078
    Abstract: The invention discloses a composite electrode materials with improved structure. The composite electrode materials of this invention includes at least one active material. The active material is coated an artificial passive film on its surface to effectively prevent or reduce the contact of the electrolyte and the active material to avoid unnecessary consumption of Li-ions. Also, there have a middle layer and an outer layer outside of the artificial passive film. Both of the middle layer and the outer layer are composed of the deformable electrolyte and the undeformable electrolyte, but with different concentration ratios. Therefore, the better ion-conduction is achieved with reduced charge-transfer resistance and reduced usage amount of organic solvent.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: December 22, 2020
    Assignees: PROLOGIUM TECHNOLOGY CO., LTD., Prologium Holding Inc.
    Inventor: Szu-Nan Yang
  • Patent number: 10868298
    Abstract: Disclosed is a porous carbon nanotube microsphere material and the preparation method and use thereof, a lithium metal-skeleton carbon composite and the preparation method thereof, a negative electrode of a secondary battery, a secondary battery, and a metal-skeleton carbon composite. The porous carbon nanotube microsphere material is spherical or spheroidal particles composed of carbon nanotubes. The spherical or spheroidal particles have an average diameter of 1 ?m to 100 ?m. A large number of nanoscale pores are composed of interlaced nanotubes inside the particle, and the pore size is 1 nm to 200 nm. The preparation method thereof comprises: mixing and dispersing carbon nanotubes and a solvent, and performing spray drying, to obtain the carbon nanotube microspheres. The lithium metal-skeleton carbon composite is obtained by uniformly mixing lithium metal in a melted state with a porous carbon material carrier and cooling.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: December 15, 2020
    Assignee: Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences
    Inventors: Yalong Wang, Zhaolong Du, Wei Lu, Liwei Chen, Xiaodong Wu
  • Patent number: 10862131
    Abstract: A nonaqueous battery includes a current collector that supports an electrode active material. The current collector includes a first layer, a second layer and a third layer. The second layer is interposed between the first layer and the third layer. The second layer includes 0.3 mass % or more and 1 mass % or less of magnesium and 0.2 mass % or more and 0.9 mass % or less of silicon, with a remainder being made up of aluminum. The first layer and the third layer constitute outer surfaces of the current collector. The first layer and the third layer each include 99.3 mass % or more of aluminum. In both of the first layer and the third layer, there is less than 0.3 mass % of magnesium and less than 0.2 mass % of silicon.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: December 8, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Torita, Harunari Shimamura, Yusuke Fukumoto, Akihiro Ochiai
  • Patent number: 10862106
    Abstract: A composite positive electrode active material includes: a first metal oxide that has a layered structure and is represented by Formula 1; and a second metal oxide that has a spinel structure and is represented by Formula 2, wherein the composite positive electrode active material includes a composite of the first metal oxide and the second metal oxide: LiMO2??Formula 1 LiMe2O4??Formula 2 wherein, in Formulas 1 and 2, M and Me are each independently at least one element selected from Groups 2 to 14 of the periodic table, and a molar ratio of Li/(M+Me) in the composite is less than 1.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: December 8, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Donghan Kim, Ryounghee Kim, Jinhwan Park, Jayhyok Song, Byongyong Yu, Byungjin Choi
  • Patent number: 10854878
    Abstract: A lithium cobalt composite oxide for a lithium secondary battery and a lithium secondary battery, the lithium cobalt composite oxide including a magnesium (Mg)-doped lithium cobalt composite oxide having an atomic ratio of Mg to cobalt (Co) of about 0.0035:1 to about 0.01:1, wherein the Mg-doped lithium cobalt composite oxide further includes fluorine (F).
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Young Jin Park, Chang Wook Kim, Eun Sung Lee
  • Patent number: 10854930
    Abstract: The present disclosure relates to a method for forming solid-state electrolytes, electrodes, current collectors, and/or conductive additives used in solid-state batteries. In one version, the method includes depositing a stabilization coating on a powdered electrolyte material, or a powdered electrode material, or a powdered conductive additive material and forming a slurry comprising the coated material. The slurry is then cast on a surface to form a layer, and the layer is sintered to form a solid state electrolyte, or an electrode, or an electrode having the conductive additive.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 1, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Jeffrey Sakamoto, Travis Thompson, Nathan Taylor