Patents Examined by Robert S Carrico
  • Patent number: 11569502
    Abstract: When a layered rock-salt type cathode active material and a sulfide solid electrolyte are mixed to be a cathode mixture, and an all solid-state battery is obtained using this mixture, oxygen is released from the cathode active material when the battery is charged, and the sulfide solid electrolyte is oxidized, increasing the battery internal resistance. To increase the concentration of cobalt inside the active material, and at the same time to lower the concentration of cobalt of the surface of the cathode active material, to suppress oxygen release in charging, specifically, a cathode mixture includes: a cathode active material; and a sulfide solid electrolyte, wherein the cathode active material has a layered rock-salt crystal phase, and is made of a composite oxide containing Li, Ni, Co, and Mn, and the concentration of cobalt inside the cathode active material is higher than that of a surface of the cathode active material.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: January 31, 2023
    Inventors: Daichi Kosaka, Jun Yoshida
  • Patent number: 11557817
    Abstract: The present application relates to the technical field of lithium batteries. Disclosed is a lateral-weld soft connector having a pole column. The connector comprises a first connector, which a top end face configured to face upward; a pole column which extends upwards protrudes out of the top end face of the first connector; a second connected extending outwards and connected to a cell is provided at one side of the first connector; the second connector is bent downwards with respect to the first connector and is disposed at a side edge of the cell.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: January 17, 2023
    Inventors: Yousheng Wang, Chaoyang Ding, Kun Ding
  • Patent number: 11545667
    Abstract: Passivation methods and compositions for electrode binders are disclosed. A coated binder particle for use in an electrode film of an energy storage device is provided. The coated binder particle can comprise a coating over the surface of a binder particle, wherein the coating provides ionic insulation to the binder particle. In some embodiments, the coating covers the entire surface of the binder particle. In still further embodiments, a coated binder particle in an energy storage device blocks ionic contact between the binder and an electrolyte.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 3, 2023
    Assignee: Tesla, Inc.
    Inventor: Mohammed-Yazid Saidi
  • Patent number: 11532821
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode has a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector. The negative electrode current collector satisfies: (D2/D1)?0.968??(1), D2?21.947*(X/100)?24.643??(2), 110?X?125??(3), and where D1 is a first displacement amount in a first piercing test at a first piercing speed of 0.1 mm/min or more; D2 is a second displacement amount in a second piercing test at a second piercing speed of less than 0.1 mm/min; and X is an expansion coefficient (%) of the negative electrode active material layer.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 20, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshinori Wakui, Koji Morita, Hirotaka Fukudome
  • Patent number: 11532852
    Abstract: A composite membrane includes: an organic layer including a plurality of through holes; and ion conductive inorganic particles disposed in the plurality of through holes, wherein the ion conductive inorganic particles each include at least one recess, at least one protrusion, or a combination thereof on a surface thereof, and wherein the surface of the ion conductive inorganic particles which comprises the at least one recess, the at least one protrusion, or the combination thereof faces a surface of the organic layer.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: December 20, 2022
    Inventors: Kyounghwan Choi, Wonsung Choi
  • Patent number: 11527752
    Abstract: This application provides a positive active material and a preparation method thereof, an electrochemical battery, a battery module, a battery pack, and an apparatus. The positive active material includes an inner core and a coating layer, where the coating layer coats a surface of the inner core. The inner core is selected from a ternary material with a molecular formula of Li1+a[NixCoyMnzMbM?c]O2?dYd, where distribution of each of the doping elements M, M?, and Y in the inner core meets the following condition: there is a reduced mass concentration gradient from an outer side of the inner core to a center of the inner core. The positive active material herein features high gram capacity, high structural stability, and high thermal stability, so that the electrochemical battery has excellent cycle performance and storage performance and high initial discharge gram capacity.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: December 13, 2022
    Inventors: Qi Wu, Jinhua He, Changyin Ji
  • Patent number: 11527761
    Abstract: Provided are (i) a catalyst that has a core-shell structure and is highly active in an oxygen reduction reaction, which is a cathode reaction of a fuel cell, and (ii) a reaction acceleration method in which the catalyst is used. A core-shell catalyst for accelerating an oxygen reduction reaction, contains: silver or palladium as a core material; and platinum as a shell material, the core-shell catalyst having, on a surface thereof, a (110) surface of a face centered cubic lattice.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: December 13, 2022
    Inventors: Koichi Matsutani, Takeshi Kaieda, Yasushi Masahiro, Hideaki Kasai, Hiroshi Nakanishi, Koji Shimizu
  • Patent number: 11527750
    Abstract: A main object of the present disclosure is to provide an active material whose volume variation due to charge and discharge is small. The present disclosure achieves the object by providing an active material comprising a primary particle including at least one crystal phase of a Type I silicon clathrate and a Type II silicon clathrate, and the primary particle includes a void inside thereof.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 13, 2022
    Inventors: Daichi Kosaka, Jun Yoshida, Tetsuya Waseda, Takamasa Otomo
  • Patent number: 11515540
    Abstract: A graphene foam-protected selenium cathode layer for an alkali metal-selenium cell, comprising: (a) a sheet or a roll of solid graphene foam composed of multiple pores and pore walls containing graphene sheets, wherein the graphene sheets contain a pristine graphene material having less than 0.01% by weight of non-carbon elements or a non-pristine graphene material having 0.01% to 20% by weight of non-carbon elements, wherein said non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, or a combination thereof, wherein the graphene sheets are interconnected or chemically merged together without an adhesive resin; and (b) selenium coating or particles residing in the pores or bonded to the pore walls of the solid graphene foam.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 29, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Hui He, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11492288
    Abstract: A glass coating composition for a fuel cell gasket is described. The coating comprises: a glass component effective to form an alkaline solution in the presence of an equivalent amount of water by weight, a binder component, a liquid carrier which is greater than 50% by volume: water, and a retarder effective to inhibit hardening of the composition. The glass coating composition is particularly useful in fuel cell gaskets and provides improved resistance to solidification in an aqueous dispersion.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 8, 2022
    Assignee: Flexitallic Investments, Inc.
    Inventor: John Ashworth
  • Patent number: 11462737
    Abstract: A binder composition for a non-aqueous secondary battery electrode contains a water-soluble polymer including, in a proportion of at least 0.1 mass % and not more than 20 mass %, a monomer unit derived from a monomer represented by general formula (1): CH2?C(R1) —C?O—NH—R2—OH (R1 is hydrogen or an alkyl group and R2 is (CHR3)n(O(CHR3)m)l[n=1 to 10; m=1 to 4; 1=0 to 3; and R3 is hydrogen or an alkyl group having a carbon number of 1 to 4]).
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 4, 2022
    Inventors: Kenya Sonobe, Yusuke Adachi
  • Patent number: 11462743
    Abstract: Batteries having a metal interlayer that acts as an ion conductor are provided, as well as methods of forming the same. The metal interlayer can include, for example, palladium, platinum, iridium, rhodium, ruthenium, osmium, gold, silver, or a combination thereof, and can act as a conductor while also inhibiting the transport of other species that would produce byproduct films and cause capacity degradation in the battery.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: October 4, 2022
    Inventor: Bilal M. El-Zahab
  • Patent number: 11444296
    Abstract: A membrane humidifier has multiple stacking units mounted one on top of the other, where an individual stacking unit includes a flow plate and diffusion unit, where a circumference of the diffusion unit is formed by two oppositely situated first edge sides and two oppositely situated second edge sides. The diffusion unit includes: a top layer on a top side of the diffusion unit, a bottom layer on a bottom side of the diffusion unit, a moisture-permeable membrane, two oppositely situated upper receiving elements at the two first edge sides, on the top side of the diffusion unit, and two oppositely situated lower receiving elements at the two second edge sides, on the bottom side of the diffusion unit, where the flow plate of the stacking unit is inserted into the two lower receiving elements, and where the next stacking unit is inserted into the two upper receiving elements.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: September 13, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Marc Becker, Thomas Hoefler, Hubert Wimmer
  • Patent number: 11411245
    Abstract: Electrolyte for a solid-state battery includes a body having grains of inorganic material sintered to one another, where the grains include lithium. The body is thin, has little porosity by volume, and has high ionic conductivity.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 9, 2022
    Assignee: Corning Incorporated
    Inventors: Michael Edward Badding, Zhen Song, Jacqueline Leslie Brown, Jennifer Anella Heine, Thomas Dale Ketcham, Gary Edward Merz, Eric Lee Miller, Cameron Wayne Tanner, Conor James Walsh
  • Patent number: 11362330
    Abstract: A composite positive active material represented by Formula 1, LiaNibCocMndMeO2??Formula 1 wherein, in Formula 1, M is zirconium (Zr), aluminum (Al), rhenium (Re), vanadium (V), chromium (Cr), iron (Fe), gallium (Ga), silicon (Si), boron (B), ruthenium (Ru), titanium (Ti), niobium (Nb), molybdenum (Mo), magnesium (Mg), or platinum (Pt), 1.1?a?1.3, b+c+d+e?1, 0?b?0.3, 0?c?0.3, 0<d?0.6, and 0?e?0.1, wherein, through atomic interdiffusion of lithium and the metal, the composite positive active material has a uniform distribution of lithium excess regions and a uniform degree of disorder of metal cations, and the metal cations have a disordered, irregular arrangement at an atomic scale. Also a method of preparing the composite positive active material, a positive electrode including the composite positive active material, and a lithium battery including the positive electrode.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: June 14, 2022
    Inventors: Donghee Yeon, Byoungwoo Kang, Junghwa Lee, Byungjin Choi, Sukgi Hong, Jinsu Ha
  • Patent number: 11355825
    Abstract: A battery pack and a method for manufacturing the same, and more particularly, a battery pack in which a heat dissipation member is attached to a protection element assembly to reduce heat generated from the battery pack when being discharged and a method for manufacturing the same.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: June 7, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jin Oh Yang, Seog Jin Yoon
  • Patent number: 11355805
    Abstract: Provided is a battery pack having an improved temperature control performance. The battery pack includes a plurality of battery modules including at least one secondary battery therein and spaced apart from each other by a predetermined distance, and a bridge member including a heat conductive material and configured to receive heat generated from at least one battery module by being disposed in contact with at least two battery modules among the plurality of battery modules.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: June 7, 2022
    Inventor: Jin-Kyu Lee
  • Patent number: 11355755
    Abstract: A carbonaceous material for a non-aqueous electrolyte secondary battery, having an average interplanar spacing d002 of the (002) plane within a range of 0.36 to 0.42 nm calculated by using the Bragg equation according to a wide-angle X-ray diffraction method, a specific surface area within a range of 8 to 30 m2/g obtained by a nitrogen adsorption BET three-point method, a nitrogen element content of 0.5 mass % or less, an oxygen element content of 0.3 mass % or less, and an average particle diameter of 1 to 2.8 ?m according to a laser scattering method.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 7, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Tomohiro Kawakami, Takafumi Izawa, Taketoshi Okuno, Jun-Sang Cho, Hideharu Iwasaki
  • Patent number: 11329311
    Abstract: A lithium-sulfur battery comprises a cathode electrode comprising from 80% to 100% lithium polysulfide based on the total weight of sulfur adsorbed at the cathode when the lithium sulfur battery is fully charged, and a high specific surface area electrically conductive material. An anode electrode comprises lithium. A porous and electrically insulating membrane is provided between the cathode and the anode electrodes. An electrolyte is adsorbed into and between cathode electrode, the anode electrode, and the membrane. A cathode current collector is electrically connected to the cathode and an anode current collector is electrically connected to the anode. A porous and electrically conductive interlayer can be provided between the membrane and at least one selected from the group consisting of the cathode and the anode. A method of making a battery is also disclosed.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: May 10, 2022
    Inventors: Jian-ping Zheng, Chao Shen
  • Patent number: 11316150
    Abstract: Disclosed is a positive electrode for a lithium secondary battery, which includes: a positive electrode current collector; and a positive electrode active material layer including an upper layer portion and a lower layer portion, wherein each of the upper layer portion and the lower layer portion of the positive electrode active material layer includes a positive electrode active material, binder polymer and a conductive material, and the positive electrode active material has an electroconductivity of 0.0001-0.0004 S/cm, and the content of the conductive material contained in the lower layer portion is 10-59 parts by weight based on 100 parts by weight of the content of the conductive material contained in the upper layer portion, or the positive electrode active material has an electroconductivity of 0.008-0.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 26, 2022
    Inventors: Hye-Bin Kim, Jung-Seok Choi, Song-Taek Oh