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1.发明公开公开(公告)号：US20240332575A1
公开(公告)日：2024-10-03
申请号：US18193827
申请日：2023-03-31
发明人： Zeng QUI , Mostafa-Ali AYUBIRAD , Hao WANG , Majed BEN-KALEFA , Rajit JOHRI , William Frederick SANDERSON, JR.
IPC分类号： H01M8/04858 , H01M8/04492 , H01M8/04537 , H01M8/04828
CPC分类号： H01M8/0491 , H01M8/04529 , H01M8/04589 , H01M8/0485 , H01M2250/20
摘要： A system includes a fuel cell stack (FCS) and a controller. The controller is configured to, in response to a stack current request corresponding to a stack current of the FCS which would cause a membrane hydration level of the FCS to be outside of a desired hydration range, adjust the stack current request to correspond to an adjusted stack current of the FCS which causes the membrane hydration level to be maintained within the desired hydration range.
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2.发明公开公开(公告)号：US20240258544A1
公开(公告)日：2024-08-01
申请号：US18627793
申请日：2024-04-05
发明人： Jacob Bryant , John Robey , Troy Fox , Chenyao Chen , Tabassum Hossainy , David Brisbine
IPC分类号： H01M8/04858 , H01M8/0432
CPC分类号： H01M8/0491 , H01M8/04358 , H01M2250/20
摘要： A stack current controller may be configured to request a current magnitude from a fuel cell. The current magnitude requested is based at least on a battery state of charge and is performed in a stepwise manner among a plurality of current magnitude steps, where each current magnitude step includes a debounce range with respect to at least one other current magnitude step. The stack current controller may be configured to control the fuel cell to output the requested current magnitude, determine an average current output by the fuel cell over a time period, and modify a current magnitude associated with one of the current magnitude steps based on the average current.
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公开(公告)号：US11978934B2
公开(公告)日：2024-05-07
申请号：US17406894
申请日：2021-08-19
发明人： Honggang Wang , Michael A. Benjamin
IPC分类号： H01M8/04 , H01M8/04701 , H01M8/04858 , H01M8/0662 , H01M8/24
CPC分类号： H01M8/0662 , H01M8/04738 , H01M8/0491 , H01M8/24 , H01M2250/20
摘要： An integrated fuel cell and combustor assembly, and a related method. The assembly includes a combustor having a combustor geometry and a combustor exit temperature. The assembly further includes multiple fuel cells fluidly coupled to the combustor, the multiple fuel cells being configured to generate a fuel cell power output using fuel and air directed into the multiple fuel cells and to direct a fuel and air exhaust from the multiple fuel cells into the combustor. The multiple fuel cells include multiple fuel cell control groups arranged in a predetermined electrical configuration about the combustor geometry. Each of the multiple fuel cell control groups has an adjustable electrical current bias.
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公开(公告)号：US20240079623A1
公开(公告)日：2024-03-07
申请号：US18261011
申请日：2022-01-10
申请人： DynElectro ApS
IPC分类号： H01M8/12 , C25B9/70 , H01M8/04298 , H01M8/04858 , H02J3/38
CPC分类号： H01M8/12 , C25B9/70 , H01M8/04305 , H01M8/0488 , H01M8/0491 , H01M8/0494 , H02J3/381 , H01M8/0432
摘要： The present invention relates to a power converter system for a plurality of electrolysis cell stack units, comprising: a parallel arrangement of multiple DC/DC converter modules;
wherein each DC/DC converter module is configured to power a single electrolysis cell stack unit; and wherein each DC/DC converter module is capable of supplying the electrolysis cell stack unit with a predetermined variation of current, power and/or voltage such that near-thermoneutral operation at part load is enabled by matching the integral Joule heat production with the integral reaction heat consumption inside the electolysis cell stack unit, and/or wherein each DC/DC converter module is capable of reversing the current supplied to said electrolysis cell stack unit, causing said electrolysis cell stack unit to perform in fuel cell mode. The power converter system enables facilitated and inexpensive power distribution, long lifetime, as well as improved thermal management during operation of the electrolysis cell stacks. In further aspects, the invention relates to a power distribution system and electrolysis plant comprising said power converter system, as well as to related methods.-
公开(公告)号：US20240014422A1
公开(公告)日：2024-01-11
申请号：US18218217
申请日：2023-07-05
发明人： Jong Bo WON , Sung Kyung CHOI , Hye Su LIM
IPC分类号： H01M8/04223 , H01M8/04746 , H01M8/2465 , H01M8/04858
CPC分类号： H01M8/04231 , H01M8/04776 , H01M8/2465 , H01M8/0491
摘要： Described herein is a fuel cell system including a coolant control valve to switch a flowing path of a coolant through a first fluid passage passing through a fuel cell stack and a second fluid passage passing through a cathode oxygen depletion (COD) heater, and a controller to perform a shutdown sequence and control a valve opening amount of the coolant control valve connected to the first fluid passage and the second fluid passage, when shutdown is requested for the fuel cell stack. The coolant control valve is formed by integrating a first valve to switch a flowing path of the coolant flowing into a pump with a second valve to switch a flowing path of a coolant pumped by the pump.
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公开(公告)号：US11824236B2
公开(公告)日：2023-11-21
申请号：US17673917
申请日：2022-02-17
发明人： Sho Akabori , Shuji Sato , Tomoyuki Inoue
IPC分类号： H01M8/04119 , H01M8/04223 , H01M8/04746 , H01M8/04858
CPC分类号： H01M8/04126 , H01M8/0491 , H01M8/04253 , H01M8/04268 , H01M8/04753 , H01M2250/20
摘要： A fuel cell system includes: a reaction gas supply unit configured to supply a reaction gas to a fuel cell stack; a humidifier configured to transfer moisture from an off-gas discharged from the fuel cell stack to the reaction gas; and a controller configured to control the reaction gas supply unit so as to regulate a supply amount of the reaction gas, wherein the controller is configured to acquire a temperature of the humidifier and set the supply amount of the reaction gas based on a target power generation amount of the fuel cell stack, and in a case where the temperature of the humidifier is equal to or lower than a prescribed warm-up determination value, the controller executes warm-up control to increase the supply amount of the reaction gas as compared with a case where the temperature of the humidifier is higher than the warm-up determination value.
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公开(公告)号：US20230369618A1
公开(公告)日：2023-11-16
申请号：US18030601
申请日：2021-09-21
发明人： Norihiro FUKAYA , Takao WATANABE , Ryoichi HIBINO
IPC分类号： H01M8/04858 , H01M8/04492 , H01M8/0432 , H01M8/04537 , H01M8/04664
CPC分类号： H01M8/0494 , H01M8/04492 , H01M8/04365 , H01M8/04559 , H01M8/04619 , H01M8/04679 , H01M8/0488 , H01M8/0491
摘要： A fuel cell control command device including: a catalyst potential calculation unit for calculating a catalyst potential of a cathode catalyst; a coating state calculation unit for calculating an oxide film formation amount of the catalyst; a command value candidate calculation unit for calculating a plurality of command value candidates including a combination of an estimated current, estimated total voltage, and a candidate control parameter, from which a power command value is obtained; a loss amount calculation unit for calculating an estimated loss for each combination; a provisional catalyst potential calculation unit for calculating an estimated catalyst potential for each combination; a deterioration amount calculation unit for calculating an estimated deterioration amount for each combination; and a command value calculation unit for selecting a combination having a minimum comprehensive index including the estimated loss and/or the estimated deterioration amount and outputting the selected combination as a command value.
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公开(公告)号：US11784336B2
公开(公告)日：2023-10-10
申请号：US17565814
申请日：2021-12-30
发明人： Se Hoon Song , Young Hwang Kim , Jae Sung Choi
IPC分类号： H01M8/04 , H01M8/04858 , H02J7/34
CPC分类号： H01M8/04947 , H01M8/0488 , H01M8/0491 , H02J7/345
摘要： 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.
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9.发明授权公开(公告)号：US11664521B2
公开(公告)日：2023-05-30
申请号：US17174923
申请日：2021-02-12
发明人： Tad Armstrong , Harald Herchen , David Weingaertner , Rajan Surve , Matthias Gottmann , Prasad Pmsvvsv , Ranganathan Gurunathan , Arne Ballantine , Michael Gasda , Tyler Dawson , Chockkalingam Karuppaiah
IPC分类号： H01M8/04 , H01M8/249 , H01M8/2483 , H01M8/0267 , H01M8/04858
CPC分类号： H01M8/249 , H01M8/0267 , H01M8/0488 , H01M8/0491 , H01M8/2483
摘要： A fuel cell system column includes a first terminal plate connected to a first electrical output of the column, a second terminal plate connected to a second electrical output of the column, at least one first fuel cell stack located in a middle portion of the column between the first terminal plate and the second terminal plate, and at least one electrical connection which is electrically connected to the middle portion of the column and which is configured to provide a more uniform fuel utilization across the first column.
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公开(公告)号：US20190103619A1
公开(公告)日：2019-04-04
申请号：US16140765
申请日：2018-09-25
发明人： Hodaka Tsuge , Koichiro Sato , Tadaaki Yamada
IPC分类号： H01M8/04537 , H01M8/04858 , H01M8/1004 , H01M4/92
CPC分类号： H01M8/04619 , H01M4/926 , H01M8/04753 , H01M8/0488 , H01M8/0491 , H01M8/1004
摘要： In an electric potential difference forming step of a method of inspecting output of a fuel cell, a hydrogen gas as an anode gas is supplied to an anode, and an inert gas as a cathode gas is supplied to the cathode to generate an electric potential difference between the anode and the cathode. In a maintaining step, measurement current which is smaller than rated current of the fuel cell is applied to the anode and the cathode, and the voltage between the anode and the cathode is maintained at less than the reduction potential of the electrode catalyst. In a measurement step, in the state where the measurement current is applied to the anode and the cathode, and voltage between the anode and the cathode is maintained, the cathode gas is changed to a mixed gas, and then, output of the fuel cell is measured.
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