公开(公告)号：US20240222660A1

公开(公告)日：2024-07-04

申请号：US17924974

申请日：2022-07-18

Applicant: TERRRALIX CO., LTD.

Inventor： Dae Sung KIM ,  Myeong Lee KIM

IPC: H01M8/04014 ,  H01M8/0432 ,  H01M8/04746

CPC classification number: H01M8/04014 ,  H01M8/04358 ,  H01M8/04768

Abstract: Proposed is an air-cooling type fuel cell. More particularly, proposed is an air-cooling type fuel cell capable of air recirculation, in which air passing through a stack is circulated back toward an inlet of a housing to be used as cooling air for the stack, thereby preventing overcooling of the stack even at a low outside air temperature and maintaining the stack at an appropriate temperature; air is circulated along opposite sides of the housing to insulate opposite ends of the stack, thereby maintaining the entire stack at a uniform temperature; and the degree of circulation of air passing through the stack is adjusted, thereby accurately adjusting the temperature of air supplied to the stack.

公开(公告)号：US20240213506A1

公开(公告)日：2024-06-27

申请号：US18396631

申请日：2023-12-26

Applicant: STANDARD ENERGY INC.

Inventor： Dong Young Lee ,  Bu Gi Kim

IPC: H01M8/04992 ,  G01R31/3835 ,  H01M8/04537 ,  H01M8/04746 ,  H01M8/18

CPC classification number: H01M8/04992 ,  G01R31/3835 ,  H01M8/04559 ,  H01M8/04753 ,  H01M8/188

Abstract: At least some embodiments herein are related to a semiconductor chip assembly comprising: a memory containing information related to entering a standard state for a vanadium-based battery; and a processor, operatively connected with the memory, that provides instructions or commands related to entering the standard state for the vanadium-based battery, by setting a constant temperature that is used in performing open circuit voltage (OCV) measurements, by setting one or more voltage values with respect to a particular voltage region that is used in performing the OCV measurements, and maintaining an equilibrium state of the vanadium-based battery while performing the OCV measurements. Also disclosed is a method comprising: entering a standard state for a vanadium-based battery and maintaining an equilibrium state of the vanadium-based battery while performing the OCV measurements. Additionally disclosed is a system comprising: at least one energy storage component having a plurality of vanadium-based batteries arranged in cells or packs; and a battery management component, operatively connected with the energy storage component, to provide battery management control for entering a standard state for the energy storage component.

公开(公告)号：US20240209987A1

公开(公告)日：2024-06-27

申请号：US18492062

申请日：2023-10-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke SATOYA ,  Hiroki YAHASHI

IPC: F17C7/00 ,  H01M8/04082 ,  H01M8/0438 ,  H01M8/04746

CPC classification number: F17C7/00 ,  H01M8/04201 ,  H01M8/04388 ,  H01M8/04753 ,  F17C2201/0109 ,  F17C2205/0142 ,  F17C2205/0326 ,  F17C2250/032 ,  F17C2250/043 ,  F17C2250/0636 ,  F17C2270/0184

Abstract: A gas supply module includes: a plurality of tanks; a solenoid valve; an intermediate flow path; a merging portion; a gas discharge flow path; a pressure measuring device; and a control unit. The control section controls the solenoid valve of any one of the solenoid valves to the open state at the start of the gas discharge, controls the solenoid valve to the closed state at the end of the gas discharge, and records the pressure measured by the pressure measuring device as the pressure of the tank provided with the solenoid valve controlled to the closed state.

公开(公告)号：US20240204225A1

公开(公告)日：2024-06-20

申请号：US18288823

申请日：2021-05-11

Applicant: Mitsubishi Electric Corporation

Inventor： Toshio SHINOKI

IPC: H01M8/04858 ,  H01M8/04007 ,  H01M8/04014 ,  H01M8/04089 ,  H01M8/04119 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/0432 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/0612

CPC classification number: H01M8/04925 ,  H01M8/04022 ,  H01M8/04037 ,  H01M8/04097 ,  H01M8/04156 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04268 ,  H01M8/04343 ,  H01M8/04365 ,  H01M8/04373 ,  H01M8/04738 ,  H01M8/04761 ,  H01M8/0618

Abstract: A fuel cell system includes: a steam generator configured to heat water to generate steam; a reforming part configured to cause a reaction between the steam and hydrocarbon to generate a reformed gas containing hydrogen; a fuel cell stack, which has an anode and a cathode, and is configured to generate electric energy through an electrochemical reaction caused between the reformed gas supplied to the anode and an oxidant supplied to the cathode; and an ejector configured to supply at least one of a raw material containing the hydrocarbon or an anode circulating gas obtained by recovering a part of an anode exhaust gas discharged from the anode to the reforming part by using the steam as a driving fluid. The steam generator includes: an evaporation flow passage through which the water flows; an anode exhaust gas flow passage that is thermally connected to the evaporation flow passage and through which the anode exhaust gas flows; and an auxiliary heating device configured to heat the water. The anode exhaust gas flow passage and the auxiliary heating device are opposed to each other across the evaporation flow passage.

公开(公告)号：US20240204219A1

公开(公告)日：2024-06-20

申请号：US18084762

申请日：2022-12-20

Applicant: Ford Global Technologies, LLC

Inventor： Hassan FARHAT ,  Ravi GOPAL ,  Yixin YAO

IPC: H01M8/04029 ,  B60L58/33 ,  H01M8/0432 ,  H01M8/04537 ,  H01M8/04746

CPC classification number: H01M8/04029 ,  B60L58/33 ,  H01M8/0432 ,  H01M8/04619 ,  H01M8/04768 ,  B60H2001/00307 ,  H01M2250/20

Abstract: A multiple fuel cell thermal management system controls a proportional mixing valve, heat exchanger bypass valves, fan speeds, and pump speeds of respective coolant circuits and associated fuel-cell stacks to operate the stacks independently or in combination. When vehicle wheel loads are low or in applications with standby fuel-cell stacks, selected stacks are turned off. During moderate loads or high ambient temperature, the working fuel cell cooling system(s) operates in parasitic load reduction mode, using the non-working cooling circuit(s) as a heat sink running the associated pump at low speed and throttling the proportional mixing valve such that efficient cooling is accomplished in the running circuit with less fan power required than if the non-working circuit is completely shut down. A heat exchanger bypass valve and fan speed are controlled to provide a target stack inlet temperature. Pump speed is controlled responsive to a stack inlet/outlet temperature difference.

公开(公告)号：US20240194921A1

公开(公告)日：2024-06-13

申请号：US18065576

申请日：2022-12-13

Applicant: ESS TECH, INC.

Inventor： Sean Kissick ,  Yang Song ,  Timothy J McDonald

IPC: H01M8/18 ,  H01M8/04089 ,  H01M8/04537 ,  H01M8/04746

CPC classification number: H01M8/188 ,  H01M8/04089 ,  H01M8/04611 ,  H01M8/04753

Abstract: Systems and methods are provided for rebalancing cells in a redox flow battery. In one example, a method of operating a rebalancing cell in a redox flow battery system includes measuring a state-of-charge (SOC) of a redox flow battery in the redox flow battery system, calculating an electrolyte concentration from the measured SOC of the redox flow battery, and maintaining a rebalancing reaction rate at the rebalancing cell. In one example, maintaining the rebalancing includes, responsive to a change in the electrolyte concentration, adjusting an electrolyte flow rate to the rebalancing cell and adjusting a hydrogen flow rate to the rebalancing cell.

公开(公告)号：US20240194914A1

公开(公告)日：2024-06-13

申请号：US18386582

申请日：2023-11-02

Applicant: NIMBUS POWER SYSTEMS, INC

Inventor： Matthew P. WILSON ,  Michael E. Gorman ,  Samuel J. Angles

IPC: H01M8/04858 ,  H01M8/04029 ,  H01M8/04082 ,  H01M8/04537 ,  H01M8/04746 ,  H01M8/2457

CPC classification number: H01M8/0494 ,  H01M8/04029 ,  H01M8/04201 ,  H01M8/04604 ,  H01M8/04656 ,  H01M8/04753 ,  H01M8/0491 ,  H01M8/04917 ,  H01M8/2457

Abstract: A method for operating a fuel cell power plant is provided to deliver power and/or receive power from a load. The fuel cell power plant includes an energy storage system connected in parallel with a fuel cell system. The method for operating includes the steps of calculating and actively proportioning a current split between the fuel cell system and the energy storage system, and controlling the proportioning using fuel cell system air flow. In one embodiment, set point changes in the fuel cell system air flow are operationally independent from a fuel cell water management system that removes product water, humidifies inlet reactant gas, and/or cools the fuel cell stack. In another embodiment, the step of calculating the current split proportion includes the selection of points on a family of V/I curves within a range from 40% fuel cell air utilization to 99% fuel cell air utilization.

公开(公告)号：US20240194912A1

公开(公告)日：2024-06-13

申请号：US18117079

申请日：2023-03-03

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Jun Su Lee ,  Dae Jong Kim ,  Jae Won Jung

IPC: H01M8/04858 ,  H01M8/04111 ,  H01M8/04228 ,  H01M8/04746 ,  H01M16/00

CPC classification number: H01M8/0488 ,  H01M8/04111 ,  H01M8/04228 ,  H01M8/04753 ,  H01M16/006

Abstract: A fuel cell system includes a fuel cell stack and a battery that are connected to a high voltage line in parallel, a converter connected to the high voltage line and the battery while being located therebetween and configured to control a voltage at the high voltage line, and a controller, in a stop control mode of the fuel cell stack, when an error occurs in a drop control of an output voltage of the fuel cell stack, the controller dropping the voltage at the high voltage line under the output voltage of the fuel cell stack by the converter to drop the output voltage of the fuel cell stack.

公开(公告)号：US20240186541A1

公开(公告)日：2024-06-06

申请号：US18527571

申请日：2023-12-04

Applicant: Airbus Operations SAS ,  Airbus Operations GmbH

Inventor： Theophile HORDE ,  Paul-Emile ROUX ,  Anthony ROUX ,  Julien LE BAIL ,  Ignacio DURAN ,  Guido KLEWER ,  Hendrik STRUMMEL

IPC: H01M8/04119 ,  H01M8/04111 ,  H01M8/04537 ,  H01M8/04746

CPC classification number: H01M8/04141 ,  H01M8/04111 ,  H01M8/04552 ,  H01M8/04582 ,  H01M8/04611 ,  H01M8/04753 ,  H01M8/04761 ,  B64D27/355

Abstract: A method for humidifying an air supply of a fuel cell, an air supply circuit including an injection line, an intermediate line and an evacuation line. The method includes steps for recovering recycled air, in the evacuation line, and injecting recycled air into the injection line so as to mix it with ambient air from the environment. The method additionally includes increasing the ratio of recycled air in the injection line when a power setting of the cell reduces and if the power setting is lower than a predefined power threshold, and reducing the ratio of recycled air when the power setting increases and if the power setting remains lower than the predefined threshold.

公开(公告)号：US20240178421A1

公开(公告)日：2024-05-30

申请号：US18548271

申请日：2022-03-01

Applicant: CERES INTELLECTUAL PROPERTY COMPANY LIMITED

Inventor： Alexander MCNICOL ,  Oliver POSTLETHWAITE ,  Jonathan David HARMAN ,  Stefano MICUCCI ,  Farzad BARARI ,  Anupama PILLAI ,  Michael James MCLORN

IPC: H01M8/04746 ,  C01B3/38 ,  H01M4/90 ,  H01M8/04089 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/0432 ,  H01M8/04701 ,  H01M8/04858 ,  H01M8/04955 ,  H01M8/0612 ,  H01M8/0637 ,  H01M8/12 ,  H01M8/126 ,  H01M8/2425

CPC classification number: H01M8/04753 ,  C01B3/38 ,  H01M4/9033 ,  H01M8/04097 ,  H01M8/04225 ,  H01M8/04228 ,  H01M8/04268 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/0432 ,  H01M8/04701 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/04955 ,  H01M8/0618 ,  H01M8/0637 ,  H01M8/126 ,  H01M8/2425 ,  C01B2203/0233 ,  C01B2203/067 ,  C01B2203/0894 ,  H01M2008/1293

Abstract: A fuel cell system (200, 300) and a method for operating the fuel cell system (200, 300). The fuel cell system (200, (1300) comprising an anode inlet (226) and an anode outlet (227); means for heating the stack (205); an anode off gas recirculation loop (240) configured to provide a gas flow path to recirculate anode off gas from the anode outlet (227) to the anode inlet (226); and a controller (290). The method comprising, at start-up of the fuel cell system (200, 300); heating the stack (205) to a first threshold temperature; providing an unreformed hydrocarbon fuel to the anode inlet (226) at a first fuel flow rate from a fuel supply (225) when but not before the stack (205) is above the first threshold temperature; recirculating anode off gas from the anode outlet (227) to the anode inlet (226) while providing unreformed fuel to the anode inlet (226); and drawing a current from the fuel cell system (200, 300) while recirculating the anode off gas.