Patents Examined by James M Erwin
  • Patent number: 11114675
    Abstract: The bipolar plate of the invention for electrochemical cells, especially for proton-exchange membrane (PEM) fuel cells, is made with a metallic substrate and on the surface is made with an electrical contact resistance-reducing, carbon-based layer, a layer system or a boundary layer which is made of a near-surface, primarily sp2-bonded, carbon-based layer having a carbon fraction ranging from 50% to 100%, this layer being applied on a metallic substrate surface that is modified relative to the starting material. There may also be a surface region of the substrate in the form of an edge layer made with nitride and/or carbon by nitriding and/or carburizing. On the surface which is in touching contact with a gas-permeable element within the electrochemical cell, the metallic substrate may have a structuring made with elevations and/or depressions in the respective surface.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 7, 2021
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., TECHNISCHE UNIVERSITÄT DRESDEN
    Inventors: Slavcho Topalski, Teja Roch, Thomas Stucky, Axel Zwick, Giorgio Maurizio
  • Patent number: 11108041
    Abstract: Provided are a nonaqueous electrolyte energy storage device having high capacity retention ratio after charge-discharge cycles at a high temperature of about 45° C., and a method for producing such a nonaqueous electrolyte energy storage device. One aspect of the present invention is a nonaqueous electrolyte energy storage device including a positive electrode having a positive composite that contains a phosphorus atom and a lithium-transition metal composite oxide containing manganese, wherein, in a spectrum of the positive composite by X-ray photoelectron spectroscopy, a peak position for P2p is observed at 134.7 eV or less. Another aspect of the present invention is a method for producing a nonaqueous electrolyte energy storage device, the method including forming a positive electrode using a positive composite paste that contains a phosphorus oxo acid and a lithium-transition metal composite oxide containing manganese.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 31, 2021
    Assignee: GS Yuasa International Ltd.
    Inventors: Akifumi Kikuchi, Ryota Kido
  • Patent number: 11101489
    Abstract: The present invention relates to an apparatus for manufacturing an electrode assembly including a separator feeding unit including a first roll on which one side of a separator strip is wound and a second roll on which the other side of the separator strip is wound, wherein the first and second rolls respectively unwind the separator strip so that the separator strip is fed toward a core portion of the separator strip disposed between the first and second rolls; a separator folding unit for winding the separator strip around the core portion to form a separator spiral folded in a spiral shape about the core portion; a first electrode lamination unit for laminating first electrode members on one surface of the separator spiral; and a second electrode lamination unit for laminating second electrode members on the other surface of the separator spiral.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 24, 2021
    Assignee: NS CO.LTD.
    Inventors: See Yong Lee, Han Woong Lee, Sung Jin Jun
  • Patent number: 11101490
    Abstract: The present invention relates to an apparatus for manufacturing an electrode assembly including a separator feeding unit including a first roll on which one side of a separator strip is wound and a second roll on which the other side of the separator strip is wound, wherein the first and second rolls respectively unwind the separator strip so that the separator strip is fed toward a core portion of the separator strip disposed between the first and second rolls; a separator folding unit for winding the separator strip around the core portion to form a separator spiral folded in a spiral shape about the core portion; a first electrode lamination unit for laminating first electrode members on one surface of the separator spiral; and a second electrode lamination unit for laminating second electrode members on the other surface of the separator spiral.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 24, 2021
    Assignee: NS CO. LTD.
    Inventors: See Yong Lee, Han Woong Lee, Sung Jin Jun
  • Patent number: 11094968
    Abstract: Provided is a plate-shaped battery cell in which electrode leads are located at one side end portion of a battery case including an excess sealing portion of a thermally-welded or adhesive structure for sealing an electrode assembly.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: August 17, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jin Oh Yang, Young Su Son, Suk Jin Song, Jae Young Jang
  • Patent number: 11094957
    Abstract: A flow battery includes a first liquid containing a first electrode mediator, a first electrode, a first active material, and a first circulator that circulates the first liquid between the first electrode and the first active material. The first electrode mediator includes at least one benzene derivative that is at least one selected from the group consisting of 1,4-di-tert-butyl-2,5-dimethoxybenzene, 1,4-dichloro-2,5-dimethoxybenzene, 1,4-difluoro-2,5-dimethoxybenzene, and 1,4-dibromo-2,5-dimethoxybenzene.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: August 17, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Honami Nariyama
  • Patent number: 11094949
    Abstract: A fuel cell system includes: a fuel cell; a supply device; and a control unit configured to lower output voltage of the fuel cell to a target value so as to execute recovery processing to recover power generation performance of the fuel cell. In a case of having an execution request of the recovery processing, the control unit restarts power generation of the fuel cell when open circuit voltage of the fuel cell is lowered to or smaller than a threshold value higher than the target value by controlling a flow rate of a cathode gas while the power generation of the fuel cell is paused, and the control unit executes the recovery processing while controlling an output current value of the fuel cell to be smaller than an idle current value that is an output current value of the fuel cell in an idle operation state.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 17, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiko Kaneko, Masayuki Ito
  • Patent number: 11094994
    Abstract: The present disclosure discloses a battery module and a battery pack. The battery module comprises a plurality of battery cells and a fireproof member, wherein each of the plurality of battery cells is provided with a vent, and the vent faces the fireproof member; wherein the fireproof member includes a fireproof member body and a first extension connected to an upper end of the fireproof member; and/or a second extension connected to a lower end of the fireproof member. When thermal runaway occurs to the battery cells, flames and high temperature particles ejected out of the vent are blocked by the fireproof member body and the first extension and/or the second extension, thus preventing the ejected flames and high temperature particles from burning neighboring battery cells, and preventing the battery cells that has undergone thermal runaway from inducing thermal runaway of the neighboring battery cells opposite to the vents.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 17, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xingdi Chen, Kaijie You, Yu Tang, Ziyuan Li, Yuepan Hou, Jun Ma
  • Patent number: 11069909
    Abstract: In a fuel cell vehicle, when temperature of a power storage device detected by a temperature sensor is a second temperature, which is lower than a predetermined first temperature, at least in a period when the power storage device is allowed to be charged with regenerative electric power, remaining charge is controlled by setting a lower limit to a value higher than a lower limit set at the first temperature. When a stop instruction for a fuel cell system is input, remaining charge raising processing for raising the remaining charge of the power storage device is performed.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: July 20, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Watanabe, Tomoya Ogawa, Tatsuya Fukami, Junichi Matsuo
  • Patent number: 11069897
    Abstract: Various arrangements of an anode-free solid-state battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a solid-state electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: July 20, 2021
    Assignee: TeraWatt Technology Inc.
    Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
  • Patent number: 11069935
    Abstract: A cell and a battery are provided. The cell includes an electrode assembly and a packaging bag, the electrode assembly includes a first electrode sheet provided with a first coating layer and a first uncoated region, the packaging bag includes a first body, the electrode assembly is disposed in the packaging bag, and the first uncoated region is electrically connected with the first body. Further, the electrode assembly may further include a second electrode sheet provided with a second coating layer and a second uncoated region, the packaging bag may further include a second body, and the second uncoated region is electrically connected with the second body.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: July 20, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Peipei Guo, Ping He, Yejun Peng, Jianwei Lin, Bin Xie
  • 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: 11059385
    Abstract: There is provide an electric power supply control apparatus for a vehicle comprising a battery, an electric motor, and a temperature controller, the electric power supply control apparatus sets one of upper limit values of driving electric power and temperature controlling electric power at a predetermined value that is equal to or smaller than a total electric power upper limit value without being limited by the other one of the driving electric power and the temperature controlling electric power, and sets the upper limit value of the other one of electric power in a way such that a sum of the upper limit value of the other one of electric power and the one of electric power is equal to or smaller than the total electric power upper limit value.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 13, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Fumiyuki Moriya, Ken Watanabe, Ryohei Hoshi
  • Patent number: 11056699
    Abstract: In a fuel cell system, the output from a plurality of fuel cells can reach an output greater than or equal to auxiliary driving power in a short time because the initial supply amount of raw fuel supplied from a raw fuel supply part is greater than or equal to a first supply amount that is a raw fuel supply amount corresponding to the auxiliary driving power. Thus, even if the raw fuel is supplied at the initial supply amount when a power failure has occurred in an electric power system during a startup operation of the fuel cell system, it is possible to supply electric power from the fuel cells to the auxiliary machinery and continue to drive the auxiliary machinery under the control of a startup controller. This suppresses the stop of the fuel cell system under the startup operation.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 6, 2021
    Assignee: Hitachi Zosen Corporation
    Inventors: Kyohei Izuma, Kazuki Wakamiya
  • Patent number: 11050079
    Abstract: An e-fuel energy storage system and method are provided. The e-fuel energy storage system comprises e-fuel, an e-fuel charger, and an e-fuel cell, wherein the component such as an electrode and membranes, material, and design configured to charge the e-fuel are independent and different from the component such as an electrode and membranes, material, and design configured to discharge the e-fuel.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 29, 2021
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Tianshou Zhao
  • Patent number: 11050091
    Abstract: A solid battery including at least one first laminate body in which a first electrolyte layer, a first positive electrode layer, a first current collecting layer, and a second positive electrode layer are laminated in this order; at least one second laminate body in which a second electrolyte layer, a first negative electrode layer, a second current collecting layer, and a second negative electrode layer are laminated in this order; a first insulating layer connected to at least part of a side surface portion of the first laminate body; and a second insulating layer connected to at least part of a side surface portion of the second laminate body. Each of the first current collecting layer and the second current collecting layer has ionic conductivity of 10?7 S/cm or lower, and each of the first insulating layer and the second insulating layer has ionic conductivity of 10?7 S/cm or lower.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 29, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keisuke Shimizu, Masamitsu Suzuki, Norio Fukasawa
  • Patent number: 11040629
    Abstract: A fuel cell vehicle according to the present disclosure includes, in a front room: a fuel cell stack fixed to an upper part of a stack frame; a high voltage element fixed to an upper part of the fuel cell stack; and an ion exchanger that is arranged in front of the fuel cell stack and the high voltage element. The stack frame is provided with an inclined part, and when the ion exchanger is displaced rearward at the time of a frontal crash of the fuel cell vehicle, a rear part in a lower end of the ion exchanger is slid along an inclined surface of the inclined part and the ion exchanger is displaced in a diagonally upward direction, whereby the cap part of the ion exchanger is positioned on the upper side in the vertical direction with respect to the high voltage element.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: June 22, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideaki Sakakibara
  • Patent number: 11031597
    Abstract: A negative electrode material for a lithium-ion secondary battery contains graphitic particles of which a standard deviation of circularity at a cumulative frequency ranging from 10% by particle to 90% by particle from the lower circularity, determined by a flow-type particle analyzer, is from 0.05 to 0.1.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 8, 2021
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kento Hoshi, Hideyuki Tsuchiya, Tsutomu Satoh
  • Patent number: 11018345
    Abstract: A method and/or electrochemical cell for utilising one or more gas diffusion electrodes (GDEs) in an electrochemical cell, the one or more gas diffusion electrodes have a wetting pressure and/or a bubble point exceeding 0.2 bar. The one or more gas diffusion electrodes can be subjected to a pressure differential between a liquid side and a gas side. A pressure on the liquid side of the GDE over the gas side does not exceed the wetting pressure of the GDE during operation (in cases where a liquid electrolyte side has higher pressure), and/or a pressure on the gas side of the GDE over the liquid side, does not exceeds the bubble point of the GDE (in cases where the gas side has the higher pressure).
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 25, 2021
    Assignee: AQUAHYDREX, INC.
    Inventors: Gerhard Frederick Swiegers, Andrew Nattestad, Dennis Antiohos, Fletcher William Thompson, Stephen Thomas Beirne, Steven DuWayne Kloos, Paul Brendan Denis Michael Barrett
  • Patent number: 11018391
    Abstract: A battery cell, which includes an electrode assembly, a battery case configured to accommodate the electrode assembly, and two pairs of electrode leads provided at outer surfaces of the battery case and connected to the electrode assembly, is provided.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 25, 2021
    Assignee: LG CHEM, LTD.
    Inventor: Ju-Hyun Kang