Patents Examined by Cynthia K. Walls
  • Patent number: 11145891
    Abstract: A lithium metal secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The positive electrode and the negative electrode are wound to form an electrode group. The positive and negative electrodes face each other with the separator between the positive and negative electrodes. The electrode group has a space for accommodating at least part of the nonaqueous electrolyte when fully discharged. X and Y satisfy 1.00?X/Y<1.20, where X is a calculated thickness of the lithium metal which is calculated from design capacity per unit area of the positive electrode, and Y is a virtual thickness of the space when the space is assumed to be formed only between the negative electrode and the separator.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 12, 2021
    Inventors: Akira Kano, Kiyohiro Isii
  • Patent number: 11114690
    Abstract: Disclosed are a method of manufacturing a solid electrolyte, a solid electrolyte manufactured using the method, and an all-solid cell including the solid electrolyte. The method includes preparing an electrolyte admixture including a solid electrolyte precursor and a solvent, drying the electrolyte admixture and removing the solvent from the electrolyte admixture to form a dry electrolyte mixture, and heat-treating the dry electrolyte mixture to form a crystallized solid electrolyte.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Jun Jang, Pil Gun Oh, Hong Seok Min, Yong Sub Yoon, Sa Heum Kim, Ju Yeong Seong
  • Patent number: 11094956
    Abstract: A hydride heat engine produces electricity from a heat source, such as a solar heater. A plurality of metal hydride reservoirs are heated by the heating device and a working fluid comprises hydrogen is incrementally move from one metal hydride reservoir to a success metal hydride reservoir. The working fluid is passed, at a high pressure, from the last of the plurality of metal hydride reservoirs to an electro-chemical-expander. The electro-chemical-expander has an anode, a cathode, and an ionomer therebetween. The hydrogen is passed from the anode at high pressure to the cathode at lower pressure and electricity is generated. The solar heater may be a solar water heater and the hot water may heat the metal hydride reservoirs to move the hydrogen. The working fluid may move in a closed loop.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: August 17, 2021
    Assignee: Xergy Inc.
    Inventors: Bamdad Bahar, Peter Golben, William Parmelee, Scott Fackler
  • Patent number: 11081755
    Abstract: A molded housing may enclose an electronic component and include an electrically conductive contact component embedded within an exterior wall to conduct electricity between an interior and an exterior of the casing. The contact component may include two knurled areas separated by a recessed groove. The knurled areas and recessed groove may be coplanar with the exterior wall. The knurled areas and recessed groove may form an interface with the molded casing to seal the casing against ingress of liquid into the interior. The molded casing may include an upper housing and a lower housing formed from a combination of a rigid member and a flexible member. The rigid member may have a plurality of rigid regions, and the flexible member may have a plurality of flexible regions formed between neighboring rigid regions. The flexible member may be molded onto the rigid member using a two-shot injection molding process.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 3, 2021
    Assignee: Inventus Power, Inc.
    Inventors: Elijah Brett Goldin, Timothy James Vallaro, Bryan Rossman, Daniel Paul Rose, Marcelo Nicosia, Horace C. Rodriguez
  • Patent number: 11063309
    Abstract: A system and a method for an electrical energy supply device including an anode; a cathode; an electrolyte disposed between the anode and the cathode; the electrical energy supply device is freeze resistant such that the electrical energy supply device can operate at a temperature below 0° C. without deterioration in electrical properties or electrical performance.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 13, 2021
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Funian Mo, Zijie Tang, Hongfei Li
  • Patent number: 11063296
    Abstract: The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery which comprise the same, wherein, specifically, since the non-aqueous electrolyte solution, which comprises a compound capable of maintaining a passive effect by increasing an effect of forming a solid electrolyte interface (SEI) on surfaces of a positive electrode and a negative electrode, is provided, high-temperature storage characteristics and life characteristics of the lithium secondary battery may be improved.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: July 13, 2021
    Inventors: Young Min Lim, Chul Haeng Lee, Kyung Mi Lee
  • Patent number: 11038241
    Abstract: A separator capable of simultaneously solving the problems caused by lithium polysulfides and lithium dendrites generated in a conventional lithium-sulfur battery wherein the separator includes a porous substrate alternately laminated with a graphene oxide layer and a boron nitride layer on at least one side thereof, and to a lithium-sulfur battery including the same.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: June 15, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jieun Song, Kwonnam Sohn, Doo Kyung Yang, Yun Kyoung Kim
  • Patent number: 11038217
    Abstract: A battery module includes: a cell-stacked body constituted by stacking a plurality of cells; and a sensor device configured to detect a voltage of each cell. The sensor device is disposed on an upper portion of the cell-stacked body. The sensor device is provided with a sensor bulging portion which bulges downward, and the upper portion of the cell-stacked body is provided with a low-height portion accommodating the sensor bulging portion.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 15, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kazuhisa In, Hiroki Itaya, Atsushi Nakano
  • Patent number: 11024927
    Abstract: An electrode for a non-aqueous electrolyte secondary battery according to one embodiment includes a belt-like current collector, a mixture layer formed on each surface of the current collector, and a lead bonded to an exposed portion of the current collector where the surfaces of the current collector are exposed, the lead extending from one end of the current collector, the one end and another end constituting both ends of the current collector in the width direction. The mixture layer on at least one surface of the current collector is formed in the width direction of the current collector and adjacent to the exposed portion on the other end side, and the length in the width direction of a portion of the lead disposed on the current collector ranges from 60% to 98% of the width of the current collector.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 1, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Toshitaka Moriyama, Motoki Kinugawa, Tomofumi Yanagi
  • Patent number: 11005085
    Abstract: A method for producing an electrode tab according to an embodiment of the present invention may comprise: a step of preparing a thin plate of a strip shape having a first thickness; a step of forming an adhesion part by compressing the thin plate from one end thereof to a second thickness; and a step of forming, from the other end of the thin plate to the adhesion part, a lead tab part formed to have the first thickness, by releasing the compression applied to the adhesion part.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: May 11, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jaewook Lee
  • Patent number: 11005120
    Abstract: The electrochemical cell includes an anode, a cathode active layer, and a solid electrolyte layer disposed between the anode and the cathode active layer. The cathode active layer includes a first region which is disposed facing the solid electrolyte layer, and a second region which is disposed on the first region. An average particle diameter of first constituent particles which constitute the first region is smaller than an average particle diameter of second constituent particles which constitute the second region.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 11, 2021
    Assignee: NGK INSULATORS, LTD.
    Inventors: Shinji Fujisaki, Takashi Ryu, Makoto Ohmori
  • Patent number: 10998593
    Abstract: A battery cover including a main body, an opening/closing part provided on the main body, a flexible rib having a locking projection provided on the opening/closing part, an abutting rib provided on the main body, which has a locking recess to be engaged with the locking projection while the opening/closing part is opened to the main body, a contact portion that abuts on the locking projection and deflects the flexible rib when the opening/closing part is opened to the main body, and a flat portion provided on the contact portion, which abuts on the locking projection first when the opening/closing part is opened to the main body and extends in the direction orthogonal to the direction of force input when abutting on the locking projection.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 4, 2021
    Inventors: Takahiro Shiohama, Tatsuya Aoki, Ryouzou Hikosaka, Takuma Shimamura, Kengo Sato
  • Patent number: 10998585
    Abstract: A determination method of smoke emission in a battery includes: calculating first and second internal resistance values, of each of the parallel circuits in first and subsequent second periods, respectively; acquiring a temperature value of each of parallel circuits; and determining the smoke emission in at least one of cells included in one of the parallel circuits, when at least detecting that the one of the parallel circuits has the second internal resistance value smaller than the first internal resistance value, and has an increase in the temperature value within a period defined based on the first and second periods.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: May 4, 2021
    Inventor: Takayuki Akaishi
  • Patent number: 10991927
    Abstract: The present application provides a separator and an energy storage device. The separator comprises: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: April 27, 2021
    Assignee: Ningde Amperex Technology Limited
    Inventors: Wei Cui, Xinghua Tao, Cong Cheng
  • Patent number: 10991940
    Abstract: A graphite-based material for a lithium ion secondary battery, the graphite-based material comprising a coating film on at least a part of the surface of a graphite particle, the coating film comprising a lithium fluorophosphate compound having a specific composition.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: April 27, 2021
    Inventor: Katsumi Maeda
  • Patent number: 10985374
    Abstract: Disclosed is a binder composition for non-aqueous secondary battery electrode which comprises: a water-soluble polymer which comprises an acid group-containing monomer unit; and water, wherein the water-soluble polymer comprises the acid group-containing monomer unit in an amount of 5% to 70% by mass, and wherein the water-soluble polymer comprises water-soluble polymer particles having a radius of gyration of 200 nm or less in an amount of 95% to 100% by mass.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: April 20, 2021
    Inventors: Yusaku Matsuo, Masanori Shibuya, Kenya Sonobe
  • Patent number: 10978732
    Abstract: An integrated plate is configured with a positive electrode plate, a negative electrode plate, and a separator integrated in a card-like shape. The integrated plate comprising a storage part, a positive current collecting part, and a negative current collecting part is formed in an integrated plate manufacturing process. An electrode laminated body is manufactured in a piling process by piling a plurality of the integrated plates such that the storage parts, the positive and negative current collecting parts are overlapped together seen from upper position respectively The integrated plate manufacturing process includes a raising step of forming a raised part raised from other parts by partly bending or curving in at least a coinciding one of the positive current collecting part and the negative current collecting part for the plurality of the integrated plates, and the raised parts are overlapped one another seen from upper position in the piling process.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 13, 2021
    Inventor: Yuzo Suzuki
  • Patent number: 10978758
    Abstract: A metal air battery system having a rotating anode/cathode assembly. The assembly is mounted in a housing system that provides a mechanism for loading of fresh metal anodes for the purpose of mechanical recharge of the battery. The anode and cathode are able to rotate at high speed for the purposes of producing local high centrifugal (g) forces on their respective surfaces for the purpose of wiping clean liquid electrolyte from their surface to provide for almost instantaneous shutdown of chemical reactions producing hydrogen gas and electric current. The anode and cathode are also rotated at slower speeds for the purpose of providing an even corrosion of the metal anode surface and the cathode rides on the liquid electrolyte using a dynamic and or static liquid bearing design. This liquid bearing provides a constant distance and therefore electrical resistance in the battery.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: April 13, 2021
    Assignee: AlumaPower Corporation
    Inventor: Geoffrey T. Sheerin
  • Patent number: 10957935
    Abstract: Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell. The cylindrical battery cell may be heated while the buffer material is being compressed using the compression mechanism.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 23, 2021
    Assignee: TeraWatt Technology Inc.
    Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
  • Patent number: 10938054
    Abstract: Provided is a method for operating a redox flow battery, the method including a step of mixing a predetermined volume of a positive electrolyte and a predetermined volume of a negative electrolyte at a predetermined period, in which the predetermined period is time x selected from a range of 320 hours or less, the predetermined volume is y % of a storage volume set for one of a positive electrolyte tank and a negative electrolyte tank, y is equal to or higher than a value represented by y=0.01%×x, when x is selected from a range of 30 hours or less, y is equal to or lower than a value represented by y=0.9%×x, and when x is selected from a range of more than 30 hours to 320 hours, y is 27.0% or less.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 2, 2021
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hideyuki Yamaguchi, Katsuya Yamanishi