公开(公告)号：US12113252B2

公开(公告)日：2024-10-08

申请号：US17744471

申请日：2022-05-13

申请人： ZeroAvia, Inc.

发明人： Bob L. Mackey ,  Valery Miftakhov ,  Callum Woods Larson Ritchie ,  Christian Bailey ,  Kevin-Patxi Le Bras

IPC分类号： H01M8/04664

CPC分类号： H01M8/04671 ,  H01M2250/20

摘要： A fuel cell system having at least one fuel cell having an external surface; and one or more of audio, image, or strain sensors external to the fuel cell surface, configured for detecting a change in the external surface of the fuel cell indicative of a fault condition. The at last one sensor may include a visual camera, an IR camera, an IR detector, or a UV-responsive camera, or an ultrasound transducer, a piezoelectric sensor and a vibration sensor, or a surface acoustic wave detector, or a mass spectrometer.

公开(公告)号：US20240085365A1

公开(公告)日：2024-03-14

申请号：US18262815

申请日：2022-02-02

申请人： BRAMBLE ENERGY LIMITED

发明人： Thomas James Mason

IPC分类号： G01N27/407 ,  H01M8/0444 ,  H01M8/04664 ,  H01M8/04955

CPC分类号： G01N27/4071 ,  H01M8/04447 ,  H01M8/04671 ,  H01M8/04955

摘要： The present disclosure provides a fuel cell comprising a first sensor comprising a membrane electrode assembly (MEA) comprising a plurality of electrodes 102, 104 and a membrane electrolyte layer disposed between the plurality of electrodes 102, 104, wherein the MEA is disposed between a first substrate 122 and a second substrate 120, wherein the first substrate 122 has at least one opening 112 to provide a gas flow path therethrough to one of the electrodes 104. The fuel cell also comprises an electrical control unit 402 to determine an electrical characteristic of the MEA, wherein the electrical characteristic is indicative of the gas composition of the gas at the one of the electrodes 104 and wherein the electrical control unit 402 will generate an output based on or in response to a change in the electrical characteristic.

公开(公告)号：US20230378497A1

公开(公告)日：2023-11-23

申请号：US17948474

申请日：2022-09-20

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Jong Gyun Kim

IPC分类号： H01M8/04664 ,  H01M8/04225 ,  H01M8/0438 ,  H01M8/04746 ,  H01M8/04955

CPC分类号： H01M8/04671 ,  H01M8/04225 ,  H01M8/04388 ,  H01M8/04753 ,  H01M8/04955

摘要： An embodiment hydrogen supply system includes a fuel cell, a hydrogen supply line connected to an inlet side of an anode of the fuel cell, a discharge valve provided on an outlet side of the anode of the fuel cell to discharge exhaust gas of the anode of the fuel cell to an outside, and a controller configured to perform a hydrogen-line inspection mode to determine whether there is a leak in the fuel cell or the hydrogen supply line by cutting off air supply to the fuel cell, supplying hydrogen through the hydrogen supply line, and blocking the discharge valve, and opening the discharge valve to determine whether the discharge valve is defective in response to a determination that the fuel cell and the hydrogen supply line are normal.

公开(公告)号：US20230369616A1

公开(公告)日：2023-11-16

申请号：US17744471

申请日：2022-05-13

申请人： ZeroAvia, Inc.

发明人： Bob L. MACKEY ,  Valery MIFTAKHOV ,  Callum Woods Larson RITCHIE ,  Christian BAILEY ,  Kevin-Patxi LE BRAS

IPC分类号： H01M8/04664

CPC分类号： H01M8/04671 ,  H01M2250/20

摘要： A fuel cell system having at least one fuel cell having an external surface; and one or more of audio, image, or strain sensors external to the fuel cell surface, configured for detecting a change in the external surface of the fuel cell indicative of a fault condition. The at last one sensor may include a visual camera, an IR camera, an IR detector, or a UV-responsive camera, or an ultrasound transducer, a piezoelectric sensor and a vibration sensor, or a surface acoustic wave detector, or a mass spectrometer.

公开(公告)号：US11811111B2

公开(公告)日：2023-11-07

申请号：US17724492

申请日：2022-04-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiroyuki Sugata

IPC分类号： H01M8/04664 ,  H01M8/04858

CPC分类号： H01M8/04664 ,  H01M8/04671 ,  H01M8/04858 ,  H01M8/04932 ,  H01M2250/20

摘要： A control method for a fuel cell system includes: acquiring a poisoning rate of an electrode catalyst of a fuel cell; performing a potential maintaining operation of maintaining a potential of the fuel cell in a first potential range when the poisoning rate of the electrode catalyst is greater than a prescribed value α; and performing a potential changing operation of repeating a cycle in which the potential of the fuel cell is changed between an upper-limit potential and a lower-limit potential of a second potential range which is higher than the first potential range after the potential maintaining operation has been performed.

公开(公告)号：US11695143B2

公开(公告)日：2023-07-04

申请号：US17078716

申请日：2020-10-23

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masaaki Matsusue

IPC分类号： H01M8/04746 ,  H01M8/04082 ,  H01M8/04119 ,  H01M8/0438 ,  H01M8/04089 ,  H01M8/04664 ,  H01M8/04828

CPC分类号： H01M8/04753 ,  H01M8/04097 ,  H01M8/04164 ,  H01M8/04201 ,  H01M8/04388 ,  H01M8/04671 ,  H01M8/04843 ,  H01M8/04141 ,  H01M8/04761 ,  H01M2250/20

摘要： A fuel cell system includes a fuel cell, first and second supply devices, a gas-liquid separator, a discharge valve, first and second ejectors for discharging fuel gas and off gas to the fuel cell, a measuring device for gas pressure, and a control device. The first ejector has a discharge amount smaller than the second ejector. The first ejector has a circulation amount larger than the second ejector. The control device executes the supply during a first time from the first supply device at each first cycle such that the pressure becomes a first target value, and when the first ejector is in an abnormal state, stops the first supply device, executes the supply during a shorter second time from the second supply device at each shorter second cycle such that the pressure becomes a higher second target value, and opens and closes the discharge valve at each first cycle.

公开(公告)号：US20190207230A1

公开(公告)日：2019-07-04

申请号：US16203907

申请日：2018-11-29

申请人： General Electric Company

发明人： Fengcheng SUN ,  Honggang WANG ,  Nan XU

IPC分类号： H01M8/0432 ,  H01M8/04664

CPC分类号： H01M8/0432 ,  H01M8/04671

摘要： Temperature control system and method for a fuel cell system are disclosed. The temperature control system includes a state detector, a control selector, a normal controller and an internal model controller. The state detector determines whether the fuel cell system is in a leakage condition based on a dynamic transfer function from an air flowrate provided to the fuel cell system to a fuel cell temperature. The control selector selects to switch between the normal controller and the internal model controller based on a determined result. The normal controller is configured for controlling an air flowrate of the fuel cell system which is not in the leakage condition. The internal model controller is configured for controlling the air flowrate of the fuel cell system in the leakage condition to control the fuel cell temperature. A fuel cell system with the temperature control system is also disclosed.

公开(公告)号：US20170059663A1

公开(公告)日：2017-03-02

申请号：US15241167

申请日：2016-08-19

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  NIPPON SOKEN, INC.

发明人： Yuji ISHIKAWA ,  Takashi YAMAMOTO ,  Shigeki HASEGAWA ,  Syuya KAWAHARA

IPC分类号： G01R31/36 ,  H01M8/04537 ,  H01M8/0444

CPC分类号： G01R31/3662 ,  H01M8/04447 ,  H01M8/04455 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04582 ,  H01M8/04589 ,  H01M8/04641 ,  H01M8/04649 ,  H01M8/04671 ,  H01M8/04753 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

摘要： An AC component ΔI addition unit of a diagnostic device superimposes an alternating current on an output current of a fuel cell. A Zn calculation unit calculates a cell impedance with respect to the alternating current with regard to any of a plurality of cells. A diagnosis unit diagnoses that any cell is subjected to hydrogen deficiency when an absolute value of the cell impedance exceeds (absolute value of a reference impedance+a predetermined value β). It is diagnosed that any cell is subjected to oxygen deficiency when the absolute value of the cell impedance is smaller than (absolute value of the reference impedance−a predetermined value α).

摘要翻译： 诊断装置的交流分量ΔI加法单元将交流电叠加在燃料电池的输出电流上。 Zn计算单元相对于多个单元中的任一个来计算相对于交流电流的单元阻抗。 当单元阻抗的绝对值超过（参考阻抗的绝对值+预定值β）时，诊断单元诊断为任何单元都遭受氢缺陷。 当电池阻抗的绝对值小于（参考阻抗的绝对值 - 预定值α）时，诊断为任何电池都经历缺氧。

公开(公告)号：US20170005357A1

公开(公告)日：2017-01-05

申请号：US14788944

申请日：2015-07-01

申请人： The Boeing Company

发明人： JOSHUA M. MERMELSTEIN ,  SERGIO ESPINOZA

IPC分类号： H01M8/18 ,  H01M8/04664 ,  H02J3/38 ,  H01M8/04828

CPC分类号： H01M8/186 ,  H01M8/04604 ,  H01M8/04671 ,  H01M8/04679 ,  H01M8/0494 ,  H01M2008/1293 ,  H01M2250/10 ,  H02J3/387 ,  Y02B90/14 ,  Y02E60/525 ,  Y02E60/528

摘要： A Reversible Solid Oxide Fuel Cell (RSOFC) system includes a Reversible Solid Oxide Fuel Cell (RSOFC) unit, a bi-directional alternating current/direct current (AC/DC) converter, coupled to the RSOFC unit, a common bus, coupled to the bi-directional AC/DC converter and to a power grid, and a plurality of RSOFC subsystems, coupled to receive power only through the common bus. The RSOFC unit has a fuel cell mode, wherein the RSOFC unit produces electrical power from fuel, and an electrolysis mode, wherein the RSOFC unit consumes electrical power to produce the fuel. The bi-directional AC/DC converter is coupled to the RSOFC unit, and is configured to convert direct current (DC) electrical power produced by the RSOFC unit into outgoing alternating current (AC) power, and to convert incoming AC power into DC power for consumption by the RSOFC unit in electrolysis mode.

摘要翻译： 可逆固体氧化物燃料电池（RSOFC）系统包括可逆固体氧化物燃料电池（RSOFC）单元，耦合到RSOFC单元的双向交流/直流（AC / DC）转换器，公共总线，耦合到 双向AC / DC转换器和电力网以及多个RSOFC子系统，其被耦合以仅通过公共总线来接收电力。 RSOFC单元具有燃料电池模式，其中RSOFC单元从燃料产生电力和电解模式，其中RSOFC单元消耗电力以产生燃料。 双向AC / DC转换器耦合到RSOFC单元，并且被配置为将由RSOFC单元产生的直流（DC）电力转换成输出交流（AC）电力，并将输入的AC电力转换为DC电力 由RSOFC单位在电解模式下消耗。

公开(公告)号：US09515315B2

公开(公告)日：2016-12-06

申请号：US14380523

申请日：2013-02-22

申请人： TODA KOGYO CORP.

发明人： Kazumichi Koga ,  Ryuta Masaki ,  Akihisa Kajiyama ,  Hiroaki Masukuni

IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M4/50 ,  C01G25/00 ,  H01M4/505 ,  H01M4/485 ,  H01M8/04

CPC分类号： H01M4/364 ,  C01G25/00 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/62 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M8/04671 ,  H01M10/0525 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries, comprising an oxide having a spinel structure and comprising at least Li and Mn as main components and an oxide comprising at least Li and Zr, in which the oxide comprising at least Li and Zr forms a mixed phase comprising two or more phases, and a content of the oxide comprising at least Li and Zr in the positive electrode active substance particles is 0.1 to 4% by weight. The present invention provides positive electrode active substance particles for non-aqueous electrolyte secondary batteries which are excellent in high-temperature characteristics and a process for producing the positive electrode active substance particles, and a non-aqueous electrolyte secondary battery.

摘要翻译： 本发明涉及非水电解质二次电池用正极活性物质粒子，其包含具有尖晶石结构且至少包含Li和Mn作为主要成分的氧化物和至少包含Li和Zr的氧化物，其中包含 至少Li和Zr形成包含两相或更多相的混合相，并且正极活性物质颗粒中至少包含Li和Zr的氧化物的含量为0.1至4重量％。 本发明提供高温特性优异的非水电解质二次电池用正极活性物质粒子和正极活性物质粒子的制造方法以及非水电解质二次电池。