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    METHOD FOR STARTING A FUEL CELL STACK, COMPUTER PROGRAM PRODUCT FOR PERFORMING THE METHOD AND FUEL CELL SYSTEM HAVING A FUEL CELL STACK
    1.
    发明公开
    METHOD FOR STARTING A FUEL CELL STACK, COMPUTER PROGRAM PRODUCT FOR PERFORMING THE METHOD AND FUEL CELL SYSTEM HAVING A FUEL CELL STACK 审中-公开

    公开(公告)号：US20240072280A1

    公开(公告)日：2024-02-29

    申请号：US18457910

    申请日：2023-08-29

    申请人： EKPO Fuel Cell Technologies GmbH

    发明人： Dominik BERON ,  Jürgen KRAFT ,  Stefan HEMMER ,  Tobias KRÜGER ,  Michael GÖTZ

    IPC分类号： H01M8/04225 ,  H01M8/04029 ,  H01M8/04746

    CPC分类号： H01M8/04225 ,  H01M8/04029 ,  H01M8/04768 ,  H01M2008/1095

    摘要： The present invention relates to a method for starting a fuel cell stack at temperatures below the freezing point of a reaction product produced during the reaction between an anode-side fuel and a cathode-side fuel. The fuel cell stack comprises a plurality of individual cells having at least one internal cell which is arranged in the stacking direction in the interior of the fuel cell stack and an edge cell which is arranged in the stacking direction at the edge of the fuel cell stack. The fuel cell stack is connected to a cooling circuit having cooling fluid for cooling the fuel cell stack, which cooling fluid can be conducted through the fuel cell stack by a pump arranged in the cooling circuit. The method includes the step of applying a load to the fuel cell stack for drawing a first increasing current from the fuel cell stack, thereby decreasing an output voltage of the fuel cell stack, while the pump does not conduct cooling fluid through the fuel cell stack, until a first predetermined condition is met. In addition, the invention provides a computer program product with computer-executable instructions for carrying out the method and a fuel cell system.

    FLOW ELEMENT, USE OF A FLOW ELEMENT, BIPOLAR PLATE, AND METHOD FOR PRODUCING A FLOW ELEMENT
    3.
    发明申请
    FLOW ELEMENT, USE OF A FLOW ELEMENT, BIPOLAR PLATE, AND METHOD FOR PRODUCING A FLOW ELEMENT 有权

    公开(公告)号：US20230091303A1

    公开(公告)日：2023-03-23

    申请号：US17993955

    申请日：2022-11-24

    申请人： EKPO Fuel Cell Technologies GmbH

    发明人： Jürgen KRAFT ,  Manuel MORCOS ,  Michael GÖTZ ,  Wadim KAISER

    IPC分类号： H01M8/0254 ,  H01M8/026 ,  H01M8/0263

    摘要： The invention relates to a flow element, in particular, as a component of a bipolar plate of an electrochemical device, comprising a plate-like base body that extends in two main directions of extension that are oriented at an angle in relation to one another, and has an extension in a height direction that is oriented transversely and in particular perpendicularly thereto, wherein the base body has a channel structure having a plurality of channels that are arranged laterally adjacent to one another, wherein the channels are formed by recesses in the base body and are separated from one another by raised portions, arranged between the recesses, of the base body, wherein regions having a normal level difference, defined in the height direction, as a height difference between a raised portion and an adjoining recess are provided, as well as regions having a level difference, reduced in comparison with the normal level difference, as a height difference between a raised portion and an adjoining recess, wherein, in the running direction of the channels, at least in some portions thereof, regions having a normal level difference and regions having a reduced level difference are provided repeatedly, and regions having a reduced level difference of adjacent channels are offset in relation to one another with respect to the respective running direction thereof, wherein the regions having a reduced level difference are formed on the base body by means of saddle regions, and the regions having a normal level difference are formed by means of valley regions arranged therebetween, and wherein a valley region of an adjacent channel is in each case located opposite the saddle regions. In addition, the invention relates to a use, a bipolar plate, and a method for producing a flow element.

    FUEL CELL DEVICE HAVING A CASING
    5.
    发明公开
    FUEL CELL DEVICE HAVING A CASING 审中-公开

    公开(公告)号：US20240234781A1

    公开(公告)日：2024-07-11

    申请号：US18610142

    申请日：2024-03-19

    申请人： EKPO Fuel Cell Technologies GmbH

    发明人： Fabian SCHMID ,  Kai WAHL

    IPC分类号： H01M8/2485 ,  H01M8/0258 ,  H01M8/0271

    CPC分类号： H01M8/2485 ,  H01M8/0258 ,  H01M8/0271

    摘要： The aim of the invention is to provide a fuel cell device (100) which is easy and cost-effective to manufacture and preferably can be safely operated. In order to achieve said aim, it is proposed according to the invention that the fuel cell device (100) comprises the following: —a fuel cell stack unit (102); —a casing (104) which delimits an interior chamber (124), in which the fuel cell stack unit (102) is arranged; wherein the casing (104) has at least one wall (130), preferably a casing lid (118), and wherein the fuel cell stack unit (102) is secured to the wall (118), preferably to the casing lid (118).

    Stack of electrochemical units
    6.
    发明公开
    Stack of electrochemical units 审中-公开

    公开(公告)号：US20240186537A1

    公开(公告)日：2024-06-06

    申请号：US18442956

    申请日：2024-02-15

    申请人： EKPO FUEL CELL TECHNOLOGIES GMBH

    发明人： Arni ANTAL ,  Joachim SEITZ ,  Lukas HAAS ,  Florian CLASS ,  Wolfgang FRITZ ,  Kathrin KULLEN

    IPC分类号： H01M8/0247 ,  H01M8/04537 ,  H01M8/2465

    CPC分类号： H01M8/0247 ,  H01M8/2465 ,  H01M8/04559

    摘要： In order to provide a stack of electrochemical units that succeed one another in a stack direction, wherein each electrochemical unit comprises a bipolar plate, wherein the stack is configured to make safe, reliable and robust electrical contact for continuous measurement of the electrical potentials of the bipolar plates of the stack, it is proposed that a plurality of the bipolar plates each comprise a terminal element that projects in a contact-making direction, beyond lateral edges of the respective bipolar plate adjacent to the terminal element, wherein the terminal element has at least one latching element with which a terminal connector is latchable, and/or has at least one contact-making bead with which a contact element of a terminal connector is engageable, in order to make an electrically conductive contact between the bipolar plate and the respectively associated contact element of the terminal connector.

    ELECTROCHEMICAL DEVICE
    8.
    发明公开
    ELECTROCHEMICAL DEVICE 审中-公开

    公开(公告)号：US20240186538A1

    公开(公告)日：2024-06-06

    申请号：US18443046

    申请日：2024-02-15

    申请人： EKPO FUEL CELL TECHNOLOGIES GMBH ,  MARQUARDT GMBH

    发明人： Lukas Haas ,  Florian Class ,  Wolfgang Fritz ,  Kathrin Kullen ,  Arni Antal ,  Joachim Seitz ,  Bernd Hugger ,  Peter Broghammer

    IPC分类号： H01M8/0247 ,  H01M8/04537 ,  H01M8/2465

    CPC分类号： H01M8/0247 ,  H01M8/2465 ,  H01M8/04559

    摘要： In order to provide an electrochemical device, comprising a stack of electrochemical units that succeed one another in a stack direction, wherein each electrochemical unit comprises a bipolar plate, and a terminal connector that comprises an electrically insulating housing and a plurality of electrically conductive contact elements, wherein the stack of electrochemical units of the electrochemical device is configured to make safe, reliable and robust electrical contact for continuous measurement of the electrical potentials of the bipolar plates of the stack, it is proposed that a plurality of the bipolar plates each comprise a terminal element that projects in a contact-making direction, beyond lateral edges of the bipolar plate adjacent to the terminal element, wherein the terminal element has at least one latching element with which the terminal connector is latchable, and/or has at least one contact-making bead with which, in a mounted condition of the terminal connector, one of the contact elements of the terminal connector is engageable, in order to make an electrically conductive contact between the bipolar plate and the respectively associated contact element of the terminal connector.

    BIPOLAR PLATE FOR AN ELECTROCHEMICAL DEVICE
    10.
    发明申请
    BIPOLAR PLATE FOR AN ELECTROCHEMICAL DEVICE 有权

    公开(公告)号：US20230016017A1

    公开(公告)日：2023-01-19

    申请号：US17953102

    申请日：2022-09-26

    申请人： EKPO FUEL CELL TECHNOLOGIES GMBH

    发明人： Jürgen KRAFT ,  Michael GÖTZ ,  Manuel MORCOS

    IPC分类号： H01M8/0267 ,  H01M8/0258

    摘要： In order to create a bipolar plate for an electrochemical device, comprising at least one first bipolar plate layer and one second bipolar plate layer, between which an edge channel extending along a longitudinal direction is formed, and comprising a fluid channel running substantially in parallel to the edge channel, in which bipolar plate at least an edge channel portion of the edge channel can be flowed through by a fluid media to be supplied to the electrochemical device, for example by a fluid reaction media or by a cooling media, even though the edge channel has no direct fluidic connection to a medium channel by which the respective fluid media is supplied to the electrochemical device, it is proposed that the bipolar plate comprises at least one fluidic connection through which a fluid medium can flow from the edge channel into the adjacent fluid channel and/or from the adjacent fluid channel into the edge channel.