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公开(公告)号：US11094951B2
公开(公告)日：2021-08-17
申请号：US15193431
申请日：2016-06-27
IPC分类号： H01M8/04746 , H01M8/04089 , H01M8/249 , H01M8/04119
摘要： Fuel cell batteries are provided, and in particular hydrogen fuel cell batteries composed of at least one stack of cells. The battery is divided into at least two groups of cells able to be supplied with hydrogen separately. In a first phase, only the first group of cells and not the second is supplied; unconsumed hydrogen may however flow between the two groups via at least one evacuation manifold connected to the cells of the two groups. In a second phase, the supply to the two groups is reversed, unconsumed hydrogen still being able to flow between the two groups via the evacuation manifold. In a third phase, after a series of alternations of the two first phases, the two groups are first simultaneously supplied, then a purge valve of the evacuation manifold is opened then closed.
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公开(公告)号：US10170774B2
公开(公告)日：2019-01-01
申请号：US15110127
申请日：2015-01-06
IPC分类号： H01M8/0265 , H01M8/1004 , H01M8/241 , H01M8/0206 , H01M8/0258 , H01M8/0254
摘要： A flow-guiding plate for a fuel cell, including a conductive sheet including a relief: defining alternating flow channels on first and second faces, two successive channels on the first face being separated by walls; defining first and second access holes at ends of each of the flow channels on the second face and of a first group of flow channels on the first face; defining a flow restriction in each flow channel of a second group of flow channels on the first face, the cross-section of the flow restrictions being smaller than the cross-section of the access holes to the flow channels of the first group, the first face including alternating flow channels of the first group and alternating flow channels of the second group.
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公开(公告)号：US09837680B2
公开(公告)日：2017-12-05
申请号：US15115735
申请日：2015-02-03
IPC分类号： H01M8/24 , H01M8/2404 , H01M8/2483 , H01M8/1018
CPC分类号： H01M8/2404 , C25B9/20 , H01M8/242 , H01M8/2483 , H01M8/2485 , H01M2008/1095 , Y02P70/56
摘要： A method for manufacturing an electrochemical reactor, including: holding in position a first tube and a shaft extending in a same direction, the first tube including a bore in which a beam is housed; forming a stack which alternates bipolar plates and membrane/electrode assemblies, each bipolar plate and each membrane/electrode assembly including first and second openings through which the first tube and the shaft respectively extend; compressing the stack between two mechanical components and removing the beam from the bore of the first tube; and connecting the bore of the first tube to a fluid flow circuit of the electrochemical reactor.
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公开(公告)号：US11600833B2
公开(公告)日：2023-03-07
申请号：US15240371
申请日：2016-08-18
IPC分类号： H01M8/04 , H01M4/64 , H01M8/04082 , H01M8/04089 , H01M8/0258 , C25B9/70 , H01M8/2418 , H01M8/0271 , H01M8/00 , H01M8/0297 , H01M4/86
摘要： The invention relates to a stack of electrochemical cells (10A, 10B), divided up into at least two groups (A, B), each cell comprising a distribution circuit for a reactive species, and each group of cells comprising a separate supply collector (2A; 2B). At least one cell (10B) comprises a homogenization compartment (60B) comprising: a plurality of longitudinal conduits (61B) designed to receive the flow of the reactive species coming from the supply collector (2B) of the corresponding group and to distribute it over the inlet (51B) of the distribution circuit for the cell; and, a transverse conduit (62B) for homogenization connecting the longitudinal conduits (61B) to one another in a fluid sense.
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公开(公告)号：US10862150B2
公开(公告)日：2020-12-08
申请号：US16243275
申请日：2019-01-09
IPC分类号： H01M8/1004 , H01M8/2465 , H01M8/0258 , C25B9/18 , H01M4/86 , H01M8/249 , H01M8/241 , H01M8/1018 , C25B15/08 , C25B9/08 , C25B1/10
摘要： An assembly of electrochemical cells for an electrochemical reactor, including a first electrochemical cell, including a first membrane/electrode assembly including a first anode and a first cathode on either side of a proton exchange membrane; first and second flow guides positioned on either side of the first assembly; a second electrochemical cell, including a second membrane/electrode assembly including a second anode and a second cathode on either side of a proton exchange membrane; third and fourth flow guides on either side of the second membrane/electrode assembly; the first and third flow guides have one and the same geometry; the first anode and the second anode have different distributions of surface densities of electrocatalytic material on respective faces of the first and second proton exchange membranes.
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公开(公告)号：US10680255B2
公开(公告)日：2020-06-09
申请号：US16206529
申请日：2018-11-30
IPC分类号： H01M8/0265 , H01M8/1004 , H01M8/0206 , H01M8/0254
摘要： A flow-guiding plate for a fuel cell, including a conductive sheet including a relief: defining alternating flow channels on first and second faces, two successive channels on the first face being separated by walls; defining first and second access holes at ends of each of the flow channels on the second face and of a first group of flow channels on the first face; defining a flow restriction in each flow channel of a second group of flow channels on the first face, the cross-section of the flow restrictions being smaller than the cross-section of the access holes to the flow channels of the first group, the first face including alternating flow channels of the first group and alternating flow channels of the second group.
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公开(公告)号：US10256479B2
公开(公告)日：2019-04-09
申请号：US15352128
申请日：2016-11-15
IPC分类号： H01M8/02 , H01M8/0258 , H01M8/0267 , H01M8/0206 , H01M8/0254 , H01M8/026 , H01M8/1018
摘要： A bipolar plate, including conductive sheets, and in which flow channels are made between the conductive sheets and are in communication with a coolant inlet and outlet manifolds. An outer face of a conductive sheet includes first ribs delimiting reactant flow channels, and a second rib extending on the side of the reactant flow channels. A sealing gasket extends at least partially on the second rib. The outer face of the conductive sheet further includes third ribs extending between a first rib and the second rib, between which an alternation of third ribs and of indentation is formed. The sheets are in contact at the level of indentations, and respective passages are formed under the third ribs.
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公开(公告)号：US10243220B2
公开(公告)日：2019-03-26
申请号：US15351829
申请日：2016-11-15
IPC分类号： H01M8/02 , H01M8/0258 , H01M8/0247 , H01M8/0206 , H01M8/0254 , H01M8/026 , H01M8/0267 , H01M8/1018
摘要： An electrochemical cell includes a membrane electrode assembly and a bipolar plate. The membrane electrode assembly includes a proton exchange membrane and first and second electrodes. The bipolar plate includes conductive sheets, coolant flow channels are made between the conductive sheets. An outer face of a conductive sheet includes reactant flow channels and a first rib extending on the side of the reactant flow channels. A gasket extends on the first rib. The bipolar plate includes an intermediate zone extending between the first rib and the first electrode, a first band in which the sheets have complementary shapes nested one in the other over the entire length of a coolant flow channel, and a second band in which a sheet includes reliefs in contact with the membrane electrode assembly.
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9.发明申请公开(公告)号：US20170098837A1
公开(公告)日：2017-04-06
申请号：US15271669
申请日：2016-09-21
发明人： Fredy-Intelligent NANDJOU DONGMEZA , Jean-Philippe Poirot-Crouvezier , Fabrice Micoud , Mathias Gerard , Christophe Robin , Lara Jabbour , Remi Vincent
IPC分类号： H01M8/0297 , C25B9/06 , C25B15/02 , H01M8/0202
CPC分类号： H01M8/0297 , C25B9/063 , C25B15/02 , H01M8/0202 , H01M8/0247 , H01M8/0254 , H01M8/0265 , H01M8/0267 , H01M8/04305 , H01M8/0432 , H01M8/04574 , H01M8/04641 , H01M8/04701 , H01M8/241 , Y02P70/56
摘要： The invention relates to a method for determining a spatial distribution (Rx,yf) of a parameter of interest (R) representative of the electrical power production of an electrochemical cell, comprising steps in which a spatial distribution (Rx,yf) of the parameter of interest (R) is determined depending on the spatial distribution (Qx,ye) of a second thermal quantity (Qe) estimated beforehand from the spatial distribution (Tx,yc) of a set-point temperature (Tc) and from the spatial distribution (Dx,yr) of a first thermal quantity (Dr).
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公开(公告)号：US11482714B2
公开(公告)日：2022-10-25
申请号：US16217591
申请日：2018-12-12
IPC分类号： H01M8/0258 , H01M8/0271 , H01M8/0273 , H01M8/04089 , H01M8/0267 , H01M8/2483 , H01M8/2455 , H01M8/10 , H01M8/241 , H01M8/2457 , H01M8/247
摘要： A fuel cell includes a flow guide, a component for allowing a first fluid to flow from a first manifold to a second manifold and through a reactive zone, a peripheral seal disposed between the flow guide and the component, an intermediate seal disposed between the flow guide and the component, the intermediate seal being encircled by the peripheral seal and encircling the reactive zone, another component opposite the flow guide to allow a second fluid to flow from a third manifold to a fourth manifold and through another reactive zone, and a fluid flow circuit provided between the intermediate seal and the peripheral seal between fifth and sixth manifolds. One of the fifth and sixth manifolds is separated from the first to fourth manifolds by the intermediate seal.
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