公开(公告)号：US20240234765A1

公开(公告)日：2024-07-11

申请号：US18407822

申请日：2024-01-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi TOIDA

IPC: H01M8/04746 ,  H01M8/04089 ,  H01M8/04303 ,  H01M8/0438 ,  H01M8/0444 ,  H01M8/04955

CPC classification number: H01M8/04753 ,  H01M8/04089 ,  H01M8/04303 ,  H01M8/04388 ,  H01M8/04447 ,  H01M8/04955

Abstract: To provide a fuel cell system capable of suppressing deterioration of a catalyst. A fuel cell system, wherein the fuel cell system comprises a fuel cell, a fuel gas system, an oxidant gas system, a pressure sensor and a control unit; wherein the control unit is configured to supply a predetermined amount of a fuel gas to the fuel cell when the fuel cell system is stopped; and wherein the pressure sensor is configured to measure a pressure of the fuel gas present in the fuel gas system.

公开(公告)号：US20240085365A1

公开(公告)日：2024-03-14

申请号：US18262815

申请日：2022-02-02

Applicant: BRAMBLE ENERGY LIMITED

Inventor： Thomas James Mason

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

CPC classification number: G01N27/4071 ,  H01M8/04447 ,  H01M8/04671 ,  H01M8/04955

Abstract: 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：US20240047713A1

公开(公告)日：2024-02-08

申请号：US17817821

申请日：2022-08-05

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Samusideen Adewale SALU ,  Mohamed A. SOLIMAN ,  Nisar Ahmad ANSARI ,  Najamulhasan S. TIRMEZI

IPC: H01M8/04089 ,  H01M8/04746 ,  H01M8/0444 ,  H01M8/1231 ,  B01D53/04

CPC classification number: H01M8/04089 ,  H01M8/04753 ,  H01M8/04447 ,  H01M8/1231 ,  B01D53/04 ,  H01M2250/10 ,  B01D2257/30 ,  H01M2008/1293

Abstract: A flare gas recovery system includes an ejector that receives flare gas from a suction line extending from a flare gas header, and further receives a motive fluid that draws the flare gas into the ejector to be mixed with the motive fluid and discharge a recovered gas into a discharge gas line. A solid oxide fuel cell system receives the recovered gas and includes a fuel cell power module that uses the recovered gas to generate electrical power, an anode exhaust, and a cathode exhaust, a combustor that receives and combusts at least a portion of the anode and cathode exhausts and thereby generates waste heat, and a process gas heat exchanger that receives and converts the waste heat into electrical power.

公开(公告)号：US11888187B2

公开(公告)日：2024-01-30

申请号：US16695281

申请日：2019-11-26

Applicant: ExxonMobil Technology and Engineering Company ,  FUELCELL ENERGY, INC.

Inventor： Abdelkader Hilmi ,  Timothy A. Barckholtz ,  Jonathan Rosen ,  Heather A. Elsen ,  Gabor Kiss ,  Carl A. Willman ,  Chao-Yi Yuh ,  Hossein Ghezel-Ayagh ,  Timothy C. Geary

IPC: H01M8/04119 ,  H01M8/04746 ,  H01M8/14 ,  H01M8/0444 ,  H01M8/0438 ,  H01M8/04791

CPC classification number: H01M8/04179 ,  H01M8/04753 ,  H01M8/145 ,  H01M8/0441 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04402 ,  H01M8/04447 ,  H01M8/04455 ,  H01M8/04462 ,  H01M8/04477 ,  H01M8/04761 ,  H01M8/04798 ,  H01M8/04805 ,  H01M2008/147 ,  H01M2300/0051

Abstract: Molten carbonate fuel cells (MCFCs) are operated to provide enhanced CO2 utilization. This can increase the effective amount of carbonate ion transport that is achieved. The enhanced CO2 utilization is enabled in part by operating an MCFC under conditions that cause transport of alternative ions across the electrolyte. The amount of alternative ion transport that occurs during enhanced CO2 utilization can be mitigated by using a more acidic electrolyte.

公开(公告)号：US11855321B2

公开(公告)日：2023-12-26

申请号：US16055477

申请日：2018-08-06

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Sang Eun Jang

IPC: H01M8/04746 ,  H01M8/22 ,  H01M8/04791 ,  H01M8/0432 ,  H01M8/04223 ,  H01M8/04082 ,  H01M8/0444 ,  H01M8/04537 ,  H01M8/10

CPC classification number: H01M8/04753 ,  H01M8/04197 ,  H01M8/04231 ,  H01M8/04365 ,  H01M8/04447 ,  H01M8/04589 ,  H01M8/04798 ,  H01M8/222 ,  H01M2008/1095

Abstract: A method of controlling a hydrogen partial pressure can be carried out in a fuel cell system including a stack having a hydrogen electrode and an air electrode. The method includes: determining a point of time to purge the hydrogen electrode using a hydrogen concentration at an outlet of the hydrogen electrode or an accumulated amount of charge generated in the stack; and setting a target supply pressure of hydrogen supplied to the stack, in which the target hydrogen supply pressure is set in consideration of a hydrogen pressure and a partial pressure of nitrogen resulting from crossover in the stack.

公开(公告)号：US11791485B2

公开(公告)日：2023-10-17

申请号：US17614033

申请日：2020-04-17

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Michael Braunecker ,  Andreas Reiner

IPC: H01M8/0444 ,  H01M8/04082 ,  H01M8/04492 ,  H01M8/04955

CPC classification number: H01M8/04447 ,  H01M8/04201 ,  H01M8/04529 ,  H01M8/04955

Abstract: A method of examining a fuel cell by means of a cyclic voltammetry analysis, wherein the cyclic voltammetry analysis is used to ascertain a gas composition in the fuel cell. The fuel cell has a first gas space for a first reactant and a second gas space for a second reactant, where no reactant is supplied at least to one of the two gas spaces, especially to either gas space, during the cyclic voltammetry analysis. The cyclic voltammetry analysis is used to ascertain a concentration of hydrogen in the gas spaces.

公开(公告)号：US20230187668A1

公开(公告)日：2023-06-15

申请号：US18072943

申请日：2022-12-01

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuta OKABE

IPC: H01M8/04746 ,  H01M8/04082 ,  H01M8/0444 ,  H01M8/2457

CPC classification number: H01M8/04753 ,  H01M8/04201 ,  H01M8/04447 ,  H01M8/2457

Abstract: A fuel cell system includes a branch flow passage that branches from a supply pipe disposed outside an inner surface of a wall portion of a case enclosing a fuel cell stack, the branch flow passage communicating with the inside of the case. The outlet end of the branch flow passage is provided at a position lower than a ventilation hole in the installed state of the fuel cell system.

公开(公告)号：US10038207B2

公开(公告)日：2018-07-31

申请号：US15114171

申请日：2014-12-15

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Tetsuya Aoki ,  Michihiko Matsumoto ,  Youhei Kaneko

IPC: H01M8/04828 ,  H01M8/04791 ,  H01M8/04537 ,  H01M8/04089 ,  H01M8/04992 ,  H01M8/0444 ,  H01M8/04492 ,  G01R27/02 ,  G01R31/00 ,  H01M8/1018

CPC classification number: H01M8/0485 ,  G01R27/02 ,  G01R31/00 ,  G01R31/389 ,  H01M8/04089 ,  H01M8/04447 ,  H01M8/04529 ,  H01M8/04544 ,  H01M8/04574 ,  H01M8/04634 ,  H01M8/04798 ,  H01M8/04992 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

Abstract: A fuel cell system includes a fuel cell for generating electrical power upon being supplied with anode gas and cathode gas. The fuel cell system includes a wetness control state determination unit that determines whether or not a wetness control of controlling a degree of wetness of an electrolyte membrane of the fuel cell is normally executed, a combined capacitance calculation unit that calculates a combined capacitance of the fuel cell, and an anode gas concentration control unit that determines the occurrence of decrease in an anode gas concentration in the fuel cell or executes a control for increasing the anode gas concentration if the combined capacitance of the fuel cell is smaller than a predetermined value when the wetness control is determined to be normally executed.

公开(公告)号：US20180159155A1

公开(公告)日：2018-06-07

申请号：US15735501

申请日：2016-06-10

Applicant: Oorja Protonics, Inc.

Inventor： Md Opu ,  Rajinder Singh ,  Jeff Henderson ,  Aditya Koparkar

IPC: H01M8/04791 ,  H01M8/1011 ,  H01M8/1004 ,  H01M8/04186 ,  H01M8/0444 ,  G06F9/46

CPC classification number: H01M8/04798 ,  G06F9/46 ,  H01M8/04194 ,  H01M8/04447 ,  H01M8/1004 ,  H01M8/1011 ,  Y02E60/523

Abstract: Methods for measuring and controlling the methanol concentration in a methanol fuel cell such as a direct methanol fuel cell or fuel cell stack are disclosed. Processors and memory storage containing programs which execute instructions to control the methanol concentration in the fuel cell or fuel cell stack are also disclosed.

公开(公告)号：US09917315B2

公开(公告)日：2018-03-13

申请号：US15524104

申请日：2014-11-07

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Tetsuya Aoki

IPC: H01M8/04 ,  H01M8/0444 ,  H01M8/10 ,  H01M8/04537 ,  H01M8/04992

CPC classification number: H01M8/04447 ,  G01R27/02 ,  H01M8/04 ,  H01M8/04529 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04634 ,  H01M8/04641 ,  H01M8/04649 ,  H01M8/04992 ,  H01M8/10 ,  H01M2008/1095

Abstract: A state determination device for a fuel cell for generating power upon receiving the supply of anode gas and cathode gas, comprising: an internal impedance measurement unit configured to measure an internal impedance of the fuel cell on the basis of an alternating-current signal of a predetermined frequency output from the fuel cell; and an anode reaction resistance estimation/calculation unit configured to calculate an estimation value of a reaction resistance of an anode electrode of the fuel cell on the basis of a measurement value of the internal impedance, wherein: the predetermined frequency is selected such that a difference between the estimation value of the reaction resistance of the anode electrode during hydrogen starvation and the estimation value of the reaction resistance of the anode electrode during oxygen starvation is not smaller than a predetermined value.