Patents Examined by Olatunji A Godo
  • Patent number: 11870114
    Abstract: A fuel cell system includes a plurality of fuel cell stacks, an anode pipeline, a cathode pipeline, an anode discharge valve, a cathode supply valve, a cathode discharge valve, an anode pressure sensor, a cathode pressure sensor, and a control device. The control device determines whether a cross leak that is permeation abnormality of fuel gas or oxidant gas between an anode and a cathode on the basis of a pressure difference, which is difference between a pressure of the fuel gas and a pressure of the oxidant gas detected by the anode pressure sensor and the cathode pressure sensor in a stopped state of electric power generation of the plurality of fuel cell stacks, or a change in the pressure difference.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 9, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Seiji Sugiura
  • Patent number: 11862832
    Abstract: A modular fuel cell subsystem includes multiple rows of modules, where each row comprises a plurality of fuel cell power modules and a power conditioning module containing a DC to AC inverter electrically connected the power modules. In some embodiments, a single gas and water distribution module is fluidly connected to multiple rows of power modules, and a single mini power distribution module is electrically connected to each of the power conditioning module in each row of modules. In some embodiments, each row of modules further includes a fuel processing module located on an opposite side of the plurality of fuel cell power modules from the power conditioning module. Fuel and water connections may enter each row from the side of the row containing the fuel processing module, and electrical connections may enter each row from the side of the row containing the power conditioning module.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 2, 2024
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: Srihari Raghavan, David Trevisan, Richard Leitch, Armando Gomez, Aaron Ells, Jessica Mahler
  • Patent number: 11848465
    Abstract: An integrated cooling module of a fuel cell stack is attached to a housing of the fuel cell stack, and the integrated cooling module is connected to a plurality of components constituting a thermal management system of a fuel cell. In particular, the integrated cooling module includes: a first injection member defining flow paths guiding coolant into one or more components of the thermal management system of the fuel cell, and at least one second injection member coupled to the first injection member, and the coolants going through the components flow into the fuel cell stack through any one of the flow paths defined by the integrated cooling module.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: December 19, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sun Ae Park, Jin Hun Lee, Hun Woo Park
  • Patent number: 11843111
    Abstract: Provided are electrodes that may be used in electrochemical cells that incorporate relatively high loading of active material while also demonstrating excellent adhesion, resistance to mechanical breakdown, and also offer improved capacity retention, particularly at discharge rates of C/2 or greater.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: December 12, 2023
    Assignee: Navitas Systems, LLC
    Inventors: Pu Zhang, Peter Aurora, Michael Wixom
  • Patent number: 11831059
    Abstract: According to the present embodiment, a fuel cell stack comprises a cell stack having a plurality of unit cells stacked therein, each of the unit cells including an electrolyte membrane, a fuel-electrode porous passage plate, and an oxidant-electrode porous passage plate, wherein in the cell stack, at least a part of one main surface of a conductive fuel-electrode porous passage plate is in contact with one main surface of a conductive oxidant-electrode porous passage plate, and a capillary force of water contained in a hydrophilic micropores of the conductive fuel-electrode porous passage plate and the conductive oxidant-electrode porous passage plate prevents an oxidant gas in an oxidant-electrode passage and a fuel gas in a fuel-electrode passage from directly mixing together.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: November 28, 2023
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Yuma Kato, Akira Maekawa
  • Patent number: 11831046
    Abstract: Disclosed are a system and a method for fuel supply control for a fuel cell. The system includes a fuel supply line, a fuel supply valve, a base duty calculator configured to estimate a required supply amount of a fuel gas required for the fuel supply line on the basis of a power generation state of the fuel cell and to calculate a base duty instruction to open the fuel supply valve on the basis of the estimated required supply amount, and a valve controller.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: November 28, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Jae Won Jung, Sang Wook Han
  • Patent number: 11820240
    Abstract: Techniques are disclosed for systems and methods to provide modular battery assemblies for micro-mobility fleet vehicles. A modular battery assembly for a micro-mobility fleet vehicle includes a battery assembly enclosure including an assembly retention interface configured to physically secure the assembly enclosure to a subframe assembly of the micro-mobility fleet vehicle, a battery cell assembly disposed within the battery assembly enclosure, and an enclosure lid mounted to the assembly enclosure. The modular battery assembly may include an arched floorboard panel configured to provide a floor board surface for the micro-mobility fleet vehicle. The battery cell assembly may include a honeycomb battery cell holder and a collector board atop the battery cell holder to provide wire bond interconnects between the battery cells.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 21, 2023
    Assignee: Lyft, Inc.
    Inventors: Andrew Michael Reimer, Adam Christopher Bender, Neil Richard Anthony Saldanha, Timothy Rex Martin, Jared Mitchell Kole, Andrea Claude Ramos Santos
  • Patent number: 11817603
    Abstract: A fuel cell system that raises temperature of fuel cells by supplying heated air to the fuel cells during starting up period. The fuel cell system includes a plurality of fuel cells, a fuel supply path connected parallelly to the fuel cells to provide fuel thereto, an air supply path connected serially to the fuel cells to provide air thereto, a heat exchanger arranged in the fuel supply path to heat air or fuel, an air heat exchanger arranged in the air supply path to heat air; and a connection path connecting a position of the air supply path upstream to the air heat exchanger with a position of the fuel supply path upstream to the heat exchanger. A first control valve is arranged in the air supply path for controlling the air flowing into to the air heat exchanger. A second control valve arranged in the connection path for controlling the air flowing into the heat exchanger.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 14, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Ken Bryan Ikeguchi, Hayato Chikugo
  • Patent number: 11811117
    Abstract: An air supply system, comprising at least two air blowers and at least two communication valves; wherein one air blower is connected to a main air passage through the corresponding communication valve; and at least one other is connected to a reformer air passage and a stack air passage through at least one other communication valve, respectively. At least two air blowers are provided to connect the at least two communication valves.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 7, 2023
    Inventors: Changming Hu, Youpeng Chen, Xiaowen Sun, Xiao Yu
  • Patent number: 11811100
    Abstract: A cell module includes a plurality of battery cells each having a safety valve at a first end in a height direction, a first current collector plate including a main body having a through hole that at least partly overlaps the safety valve when viewed along the height direction and a lead extending into the through hole from the main body and being electrically connected to a first terminal of each of the battery cells, an exhaust duct disposed over a surface of the first current collector plate remote from the battery cells, and an insulating film being made of an insulating material and covering an area of the first current collector plate facing the exhaust duct. The safety valve opens when an internal pressure of any of the battery cells reaches or exceeds a predetermined level.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: November 7, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinya Motokawa, Daisuke Kishii, Keisuke Shimizu, Akira Takano
  • Patent number: 11811112
    Abstract: The fuel cell control system includes: a reactor; an air compressor, wherein the air compressor has a compressing cavity, the compressing cavity has a gas inlet and a gas outlet, a rotatable pressure wheel is disposed inside the compressing cavity, and the gas outlet is in communication with the reactor; a control flow channel, wherein a first end of the control flow channel is in communication with the gas-intake side of the pressure wheel, a second end of the control flow channel is in communication with the wheel-back side of the pressure wheel, and the control flow channel is provided with a return valve for regulating the flow rate of the control flow channel; and a central control unit, wherein the central control unit is communicatively connected to the return valve to control the opening degree of the return valve.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: November 7, 2023
    Assignee: GREAT WALL MOTOR COMPANY LIMITED
    Inventors: Pengfei Niu, Gaoxia Zhao, Haifeng Tang, Zeyu Zhang, Xin Jin, Peiming Wu, Xiangjun Wang, Haichao Yu, Zhengyu Wang, Yang Feng, Minglong Kang, Lei Gao, Hongshui Du, Xiaolong Ma, Ruyi Yang
  • Patent number: 11804612
    Abstract: The invention relates to a method for operating a fuel cell system (100), having a fuel cell stack (20) with a plurality of fuel cells (110) each having at least one cathode portion (K) and at least one anode portion (A), a compressor (10) for conveying air into the cathode portions (K), a pressure-sustaining valve (40), and a control device (50), the at least one cathode portion (K) being arranged downstream of and in fluid communication with the compressor (10) and upstream of and in fluid communication with the pressure-sustaining valve (40), the fuel cell system (100) having a high-pressure region (HDB) between the compressor (10) and the pressure-sustaining valve (40). The invention further relates to a control device (50) and to a fuel cell system (100).
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: October 31, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Mark Hellmann, Sergei Hahn
  • Patent number: 11804610
    Abstract: A fuel cell system having a direct liquid fuel cell that uses a liquid containing a formic acid or an alcohol as a fuel includes: a fuel tank that stores the fuel to be supplied to the fuel cell; a fuel supply device that supplies the fuel in the fuel tank to the fuel cell; and a bubbling device that blows an inert gas into the fuel stored in the fuel tank.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 31, 2023
    Assignees: JTEKT CORPORATION, NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY
    Inventors: Takuya Tsujiguchi, Yasuhide Takeda, Atsushi Kubo, Akihiro Takazato, Toshiyuki Saito, Motoo Nakai, Yusuke Ueda
  • Patent number: 11796503
    Abstract: A voltage applying unit of a water detecting device applies, to a pair of electrodes, a voltage changing within an application range that includes a first voltage which is smaller than an electrolysis voltage of water and a second voltage which is larger than the electrolysis voltage of the water. A judging unit judges presence or absence of the water based on change in electric current measured by a current measuring unit when the voltage changing within the application range is applied to the pair of electrodes.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: October 24, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hidetoshi Utsumi, Takehiro Fukushima, Shunsuke Konishi, Yuichi Hori, Hodaka Tsuge
  • Patent number: 11784336
    Abstract: A fuel cell system includes a first converter to convert power, which is output from a fuel cell stack or a battery, into power in a specific level, a second converter to convert power which is input to or output from the battery, a power relay assembly to control power flow between a super capacitor and the first converter, and a controller to control outputs of the first converter and the second converter, depending on a starting state or an operating state of the fuel cell system, and to control an operation of the power relay assembly.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 10, 2023
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Se Hoon Song, Young Hwang Kim, Jae Sung Choi
  • Patent number: 11777119
    Abstract: In a tubular body mounting step, a tubular body is connected to a first end constituting member and a second end constituting member of a fuel cell stack, respectively. At this time, a first opening and a second opening formed at both ends of the tubular body are closed by the first end constituting member and the second end constituting member, respectively. Accordingly, the fuel cell stack is surrounded by the tubular body. A gap is formed between the outer wall of unit cells of the fuel cell stack and the inner wall of the tubular body. In a determination step, a test gas is supplied into the fuel cell stack. Further, whether the test gas exists in the gap is determined.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 3, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventor: Takahiro Tanaka
  • Patent number: 11777122
    Abstract: A hydrogen generator includes a gasifier, upon receiving steam and methane, configured to convert the methane and steam into hydrogen and carbon monoxide; and a carbon trap, operatively connected to the gasifier, configured to capture carbon from the carbon monoxide and allow the hydrogen to pass therethrough. The carbon trap includes iron and a heat source.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: October 3, 2023
    Inventor: Clarke G. Homan
  • Patent number: 11777125
    Abstract: A fuel cell system includes at least one of plural electrochemical pump separators to separate carbon dioxide from a fuel exhaust stream or a combination of a gas separator and a fuel exhaust cooler located outside a hotbox.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: October 3, 2023
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: David Weingaertner, Matthias Gottmann, Jayakumar Krishnadass, Chockkalingam Karuppaiah, Arne Ballantine, Swaminathan Venkataraman, Martin Perry, John Fisher, Greg Young
  • Patent number: 11777118
    Abstract: Disclosed herein is a method of controlling start/stop of a parallel fuel cell system, which, when controlling stop of a parallel fuel cell system in which two or more fuel cell systems are connected in parallel, considers operating state information of each fuel cell system, such as a current speed value of an air compressor and an opening degree of an air-exhaust-side air pressure valve of a fuel cell stack. Accordingly, the method can calculate a delay time for performing fuel cell system stop control for the two or more fuel cell systems, and sequentially perform the fuel cell system stop control for the two or more fuel cell systems based on the calculated delay time. Therefore, it is possible to minimize output delay of each fuel cell system and to achieve deterioration prevention and efficiency improvement of the fuel cell stack by fuel cell system start/stop control.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: October 3, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sung Do Kim, Joo Yeon Kim, Min Su Kang, Chang Seok You
  • Patent number: 11769891
    Abstract: A fuel cell system (300) in which, at the time of starting up a first fuel cell set (109a) and a second fuel cell set (109b), one of a first air supply unit (102a) or a second air supply unit (102b) is driven and then the another air supply units is driven so that electric power of the another air supply units reaches a peak after an output voltage of the one of the fuel cell stacks reaches the first output value.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: September 26, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinnosuke Sato, Akiji Ando, Joji Nakashima