Patents Examined by Cynthia H. Kelly
  • Patent number: 11784349
    Abstract: An electrolyte for a lithium metal battery including a nonaqueous aprotic organic solvent and a lithium salt dissolved or ionized in the nonaqueous aprotic organic solvent. The nonaqueous aprotic organic solvent includes a cyclic carbonate, an acyclic carbonate, and an acyclic fluorinated ether. The lithium salt includes an aliphatic fluorinated disulfonimide lithium salt.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: October 10, 2023
    Inventors: Meinan He, Mei Cai, Shuru Chen
  • Patent number: 11784313
    Abstract: Provided is a slurry composition for a secondary battery electrode that has excellent fibrous carbon nanomaterial dispersibility and is capable of forming an electrode mixed material layer having excellent close adherence to a current collector. The slurry composition is obtained using a conductive material paste composition for a secondary battery electrode that contains a fibrous carbon nanomaterial, a binder, and a solvent. The binder includes a first copolymer that includes an alkylene structural unit and a nitrile group-containing monomer unit and has a weight average molecular weight of at least 170,000 and less than 1,500,000.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 10, 2023
    Inventors: Taku Matsumura, Jun Mikami
  • Patent number: 11779886
    Abstract: The presently disclosed concepts relate to improved techniques for alkali metal extraction (and in particular lithium), using a solid electrolyte membrane. By using a solid electrolyte embedded in a matrix, alkali metal (such as lithium) can be more effectively separated from feed solutions. Additionally, energy used to initially extract lithium from a feed solution may be stored as electrochemical energy, which in turn, may be discharged when lithium is depleted from the electrode. This discharged energy may therefore be reclaimed and reused to extract additional lithium.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: October 10, 2023
    Assignee: LYTEN, INC.
    Inventors: Jesse Baucom, Sanjeev Kolli
  • Patent number: 11784342
    Abstract: Provided is a nonaqueous electrolyte secondary battery, including a positive electrode with a positive electrode active material capable of absorbing and releasing a metal ion; a negative electrode with a negative electrode active material capable of absorbing and releasing a metal ion; and a nonaqueous electrolyte solution; wherein the positive electrode active material includes a lithium transition metal compound, and the positive electrode active material includes at least Ni, Mn and Co, wherein the molar ratio of Mn/(Ni+Mn+Co) is larger than 0 and not larger than 0.32, the molar ratio of Ni/(Ni+Mn+Co) is 0.55 or more, the plate density of the positive electrode is 3.0 g/cm3 or more; and the nonaqueous electrolyte solution includes a monofluorophosphate and/or a difluorophosphate. A total content of the monofluorophosphate and/or difluorophosphate is 0.01% by mass or more in terms of the concentration in the nonaqueous electrolyte solution.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: October 10, 2023
    Assignees: Mitsubishi Chemical Corporation, MU IONIC SOLUTIONS CORPORATION
    Inventors: Koichi Nishio, Jungmin Kim
  • Patent number: 11777173
    Abstract: The present invention provides a secondary battery including an insulating plate which enables easy gas discharge and is not broken at high temperature. For this purpose, disclosed is a secondary battery comprising: a case including a space therein through an opening; at least one electrode assembly inserted into the space of the case; an insulating plate formed at an upper part of the electrode assembly; and a cap plate which is coupled to the opening of the case and includes a vent, at least one region of which has a thinner thickness than other regions, wherein the insulating plate includes a plurality of gas discharge holes disposed at a region corresponding to the vent.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: October 3, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Min Hyung Guen
  • Patent number: 11777090
    Abstract: Provided is a positive electrode active material for a nonaqueous electrolyte secondary battery including a LiNi composite oxide having low internal resistance and excellent thermal stability. The positive electrode active material is obtained by performing a water washing process using a water spray on a LiNi composite oxide powder obtained by a firing step until the filtrate has an electric conductivity of 30 to 60 mS/cm, and then dried, where the LiNi composite oxide is represented by the composition formula (1): LibNi1-aM1aO2, where M1 represents at least one kind of element selected from transition metal elements other than Ni, group 2 elements, and group 13 elements, and 0.01?a?0.5, and 0.85?b?1.05.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: October 3, 2023
    Inventors: Tomoko Nakayama, Jun Yokoyama, Tetsufumi Komukai
  • Patent number: 11777156
    Abstract: A method for recovering a lithium electrolyte salt from spent batteries comprises first extracting electrolyte from shredded batteries (e.g., spent batteries at the end of their useful lifetime) with an organic carbonate solvent; concentrating the extracted electrolyte in vacuo to form a solid lithium electrolyte salt that is solvated with the organic carbonate; and then extracting solvent from the solvated, solid lithium electrolyte salt with supercritical CO2 to purify the lithium electrolyte salt sufficiently for reuse in lithium batteries. In the first extraction, the organic carbonate solvent is selected based on the solubility of the lithium electrolyte salt in the solvent, as well as the volatility of the solvent to facilitate the concentration process. The supercritical CO2 is preferably held at a pressure in the range of about 1,500 to about 30,000 psi and is passed through a bed or column of the solvated salt.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: October 3, 2023
    Inventor: Albert L. Lipson
  • Patent number: 11777129
    Abstract: The present invention is concerned with an improved fuel cell stack assembly (10) comprising a metal base plate (20) on which is mounted at least one fuel cell stack (30) and a metal end plate (40), each stack comprising at least one fuel cell stack layer (50) that comprises at least one fuel cell (101, 102) and at least one electrically insulating compression gasket (110), wherein a skirt (130) is attached to the base and end plates enclosing the stack and is under tension therebetween so as to maintain a compressive force through the stack, thereby obviating the need for tie-bars.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 3, 2023
    Inventors: Lee Rees, Stephen Phillip, Euan Freeman, Andrew Ballard, Tomasz Domanski, Eren Erturk, Alan Robertson
  • Patent number: 11769874
    Abstract: An all-solid secondary battery includes a cathode layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer. The cathode layer includes a cathode current collector and a cathode active material layer disposed on the cathode current collector, the anode layer includes an anode current collector and a first anode active material layer disposed on the anode current collector, the cathode active material layer includes a porous oxide-based composite solid electrolyte, and the solid electrolyte layer includes a sulfide-based solid electrolyte.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: September 26, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Minsuk Lee
  • Patent number: 11769882
    Abstract: Systems and methods are provided for an electrode for a lithium-ion battery cell. In one example, the electrode may include a current collector having two opposing sides, at least one of the two opposing sides being configured with a first coating layer disposed on the current collector at a first loading, where the first coating layer may include a first binder in a first weight ratio, and a second coating layer disposed on the first coating layer at a second loading, where the second coating layer may include a second binder in a second weight ratio, wherein the first weight ratio may be greater than the second weight ratio, and a ratio of the first loading to the second loading may be less than 1:2. In this way, direct current internal resistance of the lithium-ion battery cell may be decreased while maintaining or increasing adhesion within the electrode.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: September 26, 2023
    Assignee: A123 SYSTEMS, LLC
    Inventors: Tae Kyoung Kim, Jun Wang, Ronnie Wilkins, Jordan Rubio, Ankita Faulkner, Zaiyuan Le, Xiqing Wang, Ting Huang
  • Patent number: 11766848
    Abstract: Provided is a molding packaging material which is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer 2 as an outer layer, a heat fusible resin layer 3 as an inner layer, and a metal foil layer 4 arranged between the two layers. The heat fusible resin layer 3 is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer 3 is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 26, 2023
    Inventors: Kenji Yoshino, Makoto Karatsu, Takashi Nagaoka
  • Patent number: 11769878
    Abstract: A solid-state ion conductor includes a compound of Formula (I): Li4+xB7O12+0.5xX1aX21?a ??Formula (I) wherein, in Formula (I), 0?x?1; X1 is a pseudohalogen; X2 is a halogen; and 0<a?1.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: September 26, 2023
    Inventors: Gerbrand Ceder, Bin Ouyang, Yingzhi Sun, Yan Wang, Lincoln James Miara
  • Patent number: 11769936
    Abstract: A method of manufacturing a secondary battery including a joining step of clamping a negative electrode core body stacked part and a negative electrode current collector by a horn and an anvil, and in a state where the anvil is in contact with the negative electrode current collector, ultrasonically joining the negative electrode core body stacked part and the negative electrode current collector to form a joint part; and an oxidation treatment step of oxidizing a portion, in contact with the anvil, of the negative electrode current collector in the joining step.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: September 26, 2023
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Hiroshi Takabayashi
  • Patent number: 11760657
    Abstract: The present application discloses a positive electrode active material including a lithium nickel cobalt manganese oxide, the molar content of nickel in the lithium nickel cobalt manganese oxide accounts for 60%-90% of the total molar content of nickel, cobalt and manganese, and the lithium nickel cobalt manganese oxide has a layered crystal structure of a space group R 3m; a transition metal layer of the lithium nickel cobalt manganese oxide includes a doping element, and the local mass concentration of the doping element in particles of the positive electrode active material has a relative deviation of 20% or less; and in a differential scanning calorimetry spectrum of the positive electrode active material in a 78% delithiation state, an initial exothermic temperature of a main exothermic peak is 200° C. or more, and an integral area of the main exothermic peak is 100 J/g or less.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: September 19, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Shushi Dou, Chunhua Hu, Yao Jiang, Qi Wu, Jinhua He, Bin Deng
  • Patent number: 11760934
    Abstract: The compound is represented by general formula (i). In the compound, in a group Ki1, at least two secondary carbon atoms in an alkyl group (a linear alkyl, halogenated alkyl, or cyanogenated alkyl group having 3 to 40 carbon atoms) are replaced with —C(?Xi1)— and/or —CH(—CN)—, where Xi1 is an oxygen atom, a sulfur atom, NH, or NR13; in addition, a group Ai2, a group Ai3, or the group Ki1 includes, as a substituent, at least one Pi1-Spi1- group, where Pi1 is a polymerizable group, and SPi1 is a spacer group or a single bond. The liquid crystal composition including the compound represented by general formula (i) can be adsorbed onto substrates between which a liquid crystal layer is held, and, consequently, without the use of an alignment film, liquid crystal molecules can be maintained in a state in which the liquid crystal molecules are aligned in a vertical direction.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: September 19, 2023
    Inventors: Kenta Shimizu, Masanao Hayashi, Yutaka Kadomoto, Tetsuo Kusumoto, Ayaki Hosono, Shinya Yamamoto, Masanori Miyamoto, Hidetomo Kai
  • Patent number: 11764417
    Abstract: Disclosed is a device for automatically dismantling a power battery module, including a cutting platform, a clamping mechanism, a first cutting mechanism, a second cutting mechanism, a turnover mechanism, and a stripping mechanism. The clamping mechanism is disposed on the cutting platform. The first cutting mechanism includes a first cutting blade, a cutting blade set, and a first drive assembly. The second cutting mechanism includes a third cutting blade, a fourth cutting blade, and a third drive assembly. The first cutting blade, the cutting blade set, the third cutting blade, and the fourth cutting blade are vertically movable. The cutting blade set includes a plurality of second cutting blades that are movable relative to each other.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: September 19, 2023
    Inventors: Haijun Yu, Yinghao Xie, Jindong Wu, Benben Wu
  • Patent number: 11764388
    Abstract: Provided are assemblies, comprising: a first leaf spring; a second leaf spring; and at least one component; the first leaf spring and the second leaf spring being superposed over a first end of the at least one component so as to exert first and second forces, respectively, through first and second regions of the component. These assemblies are useful to apply different forces to a stacked assembly where a cross section of a component of the assembly comprises materials of different Young's moduli within that cross section, thereby compressing different regions of the component with different forces.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: September 19, 2023
    Assignee: Lockheed Martin Energy, LLC
    Inventors: Andrew Joseph Melough, Jeremy S. Loretz
  • Patent number: 11764361
    Abstract: The present invention provides a slurry composition comprising (a) a binder comprising a polymer comprising a fluoropolymer dispersed in a liquid medium; and (b) at least one conductive carbon material having a BET surface area of greater than 100 m2/g. Also provided are electrodes and electrical storage devices.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: September 19, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Stuart D. Hellring, Matthew E. Stewart, Randy E. Daughenbaugh
  • Patent number: 11764378
    Abstract: A redox flow battery system includes a cell that performs charging and discharging between the cell and a power system, a tank that stores an electrolyte supplied to the cell, a circulation pump that circulates the electrolyte between the cell and the tank, a power converter disposed between the cell and the power system, and a charge/discharge control unit that controls an operation of the power converter to control charging and discharging of the cell. When the charge/discharge control unit detects power failure in the power system, the charge/discharge control unit controls the power converter such that power of the electrolyte remaining in the cell is supplied to the circulation pump.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 19, 2023
    Inventors: Katsuya Yamanishi, Yasumitsu Tsutsui, Takahiro Kumamoto
  • Patent number: 11762288
    Abstract: A resist composition that generates an acid upon exposure and whose solubility in a developing solution is changed by action of an acid.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: September 19, 2023
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroto Yamazaki, Seiji Todoroki, Masahiro Shiosaki, Nobuhiro Michibayashi