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公开(公告)号：US11695145B2
公开(公告)日：2023-07-04
申请号：US17268456
申请日：2019-08-20
发明人： Torsten Brandt , Markus Hertweck , Günter Putschky , Daniel Christian Sander , Stefan Siedler , Fabian Straub
IPC分类号： H01M8/0662 , H01M8/04089 , H01M8/0432 , H01M8/0444 , H01M8/04119 , H01M8/04746 , H01M8/04828 , H01M8/0438
CPC分类号： H01M8/0662 , H01M8/04089 , H01M8/04365 , H01M8/0441 , H01M8/0447 , H01M8/04164 , H01M8/04402 , H01M8/04462 , H01M8/04753 , H01M8/04761 , H01M8/04843
摘要： A method for treating hydrogen-containing and oxygen-containing residual gases of fuel cells, wherein the residual gases are fed to a gas circuit, and a residual gas mixture resulting therefrom is circulated in the gas circuit by a device for converting hydrogen and oxygen to water. In order to reduce the amount of hydrogen and oxygen in the residual gas mixture, at least part of the residual gas mixture is discharged from the gas circuit.
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公开(公告)号：US20240258545A1
公开(公告)日：2024-08-01
申请号：US18292363
申请日：2022-07-11
IPC分类号： H01M8/0662 , H01M8/04537 , H01M8/2457
CPC分类号： H01M8/0662 , H01M8/04567 , H01M8/04597 , H01M8/2457
摘要： The invention relates to a fuel cell assembly having a plurality of fuel cells amalgamated electrically and mechanically in a fuel cell stack, further including a residual gas treatment device for hydrogen-containing and oxygen-containing residual gases of the fuel cells, wherein the residual gas treatment device includes a recombination fuel cell with catalyst and membrane that is led via a power circuit separate from the fuel cells, and to a method for treating hydrogen-containing and oxygen-containing residual gases from fuel cells.
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公开(公告)号：US20230124648A1
公开(公告)日：2023-04-20
申请号：US17910816
申请日：2021-02-18
IPC分类号： H01M8/0258 , H01M8/04029
摘要： A bipolar plate for an electrochemical cell, includes a flow space arranged between a first and a second plate element and has a flow inlet and a flow outlet for a coolant flowing through the flow space. Each plate element has a contact plane for contacting the other plate element and, between the flow inlet and the flow outlet, a plurality of elevations protrude from the contact plane and face away from the other plate element. The elevations have openings facing the contact plane. First flow channels are formed through the openings in the elevations by the elevations of the two plate elements being offset from one another. Each elevation at least partially overlaps at least one elevation of the other plate element. A direction-dependent flow resistance is set in the first flow channels of the bipolar plate.
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公开(公告)号：US20240011935A1
公开(公告)日：2024-01-11
申请号：US18036512
申请日：2021-10-26
IPC分类号： G01N27/407 , G01N27/417
CPC分类号： G01N27/407 , G01N27/417
摘要： A device and method for determining the purity of hydrogen, includes a measurement fuel cell cascade having at least one measurement fuel cell, a hydrogen inlet and a hydrogen outlet, a cell voltage monitoring unit that is electrically connected to the measurement fuel cell stack and monitors a voltage output of the measurement fuel cell stack, and a valve located downstream of the measurement fuel cell cascade in the direction of flow of the hydrogen for allowing dead-end operation of the measurement fuel cell cascade. The device for determining the purity of hydrogen further includes an evaluation unit that is connected to the cell voltage monitoring unit and receives a signal corresponding to a voltage output of the measurement fuel cell cascade from the cell voltage monitoring unit as a function of time, wherein the evaluation unit is designed to determine the purity of the hydrogen from the received signal.
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公开(公告)号：US20210175530A1
公开(公告)日：2021-06-10
申请号：US17268456
申请日：2019-08-20
发明人： Torsten Brandt , Markus Hertweck , Günter Putschky , Daniel Christian Sander , Stefan Siedler , Fabian Straub
IPC分类号： H01M8/0662 , H01M8/0432 , H01M8/04089
摘要： A method for treating hydrogen-containing and oxygen-containing residual gases of fuel cells, wherein the residual gases are fed to a gas circuit, and a residual gas mixture resulting therefrom is circulated in the gas circuit by a device for converting hydrogen and oxygen to water. In order to reduce the amount of hydrogen and oxygen in the residual gas mixture, at least part of the residual gas mixture is discharged from the gas circuit.
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