SINGLE CELL FOR FUEL CELL
    2.
    发明公开

    公开(公告)号:US20230299309A1

    公开(公告)日:2023-09-21

    申请号:US18120509

    申请日:2023-03-13

    摘要: A single cell for a fuel cell includes a power generating unit and two separators that hold the power generating unit in between. Each separator includes a facing surface, which faces the power generating unit. Each facing surface includes groove passages and ribs. Each of the ribs includes a top wall portion, two side wall portions, and corner portions. The top wall portion is in contact with the power generating unit. The side wall portions are located at the opposite sides of the top wall portion. Each corner portion is located between the top wall portion and one of the side wall portions. A restricting portion is provided at a section of each corner portion that faces the groove passage. The restricting portion restricts the gas diffusion layer from sinking into the groove passage. The restricting portion is a conductive porous body.

    HEAT AND CHEMICAL RESISTANT SEALANTS FOR FUEL CELLS

    公开(公告)号:US20220416263A1

    公开(公告)日:2022-12-29

    申请号:US17849348

    申请日:2022-06-24

    申请人: UltraCell LLC

    IPC分类号: H01M8/0284 H01M8/0286

    摘要: A heat and chemical resistant sealant for fuel cells that includes a fluoroelastomer sealant and a fluoroplastic gasket. The fluoroelastomer sealant is dispensed around a perimeter of a top surface of a bipolar plate. The compliant sealant conforms to surface imperfections of the bipolar plate. A fluoroplastic gasket is positioned over the fluoroelastomer sealant and bipolar plate. When compressed, the combination of the fluoroelastomer sealant and fluoroplastic gasket provide a reliable seal that can withstand the high operating temperatures of fuel cells.

    Manufacturing method of fuel-cell single cell

    公开(公告)号:US11482715B2

    公开(公告)日:2022-10-25

    申请号:US16899478

    申请日:2020-06-11

    发明人: Makoto Adachi

    摘要: Provided is a manufacturing method of a fuel-cell single cell including a membrane-electrode assembly, an anode gas diffusion layer, a cathode gas diffusion layer, and a frame-shaped resin frame to which a peripheral edge portion of the membrane-electrode assembly is fixed. The method includes an adhesive application step of applying an adhesive by screen printing to a predetermined area of the resin frame while fixing the resin frame by suction, and a stacking step and a UV irradiation step of bonding together the resin frame to which the adhesive has been applied and the membrane-electrode assembly by the adhesive.

    FUEL CELL AND CORRESPONDING MANUFACTURING METHOD

    公开(公告)号:US20220336827A1

    公开(公告)日:2022-10-20

    申请号:US17633091

    申请日:2020-08-03

    申请人: SYMBIO

    摘要: The fuel cell comprises for each MEA: an anodic volume for the circulation of an anodic fluid between the anode of the MEA and a bipolar plate and a cathodic volume for the circulation of a cathodic fluid between the anode of the MEA and another bipolar plate, one of the anodic volume and the cathodic volume is sealed by a cordon of a sealing material extending along a peripheral outer edge of the MEA, wherein the sealing material is in direct contact with the MEA and the corresponding bipolar plate; wherein the other of the anodic volume and the cathodic volume is sealed off from the fluid circulating in the volume by a direct contact line of the MEA with the corresponding bipolar plate, the contact line extending along a peripheral outer edge of the MEA.

    METHOD OF SELECTING ADHESIVE AND POWER GENERATION CELL

    公开(公告)号:US20220302474A1

    公开(公告)日:2022-09-22

    申请号:US17671735

    申请日:2022-02-15

    摘要: A method of selecting a thermoplastic-resin adhesive provided so as to be exposed to a fluid flow path of a power generation cell includes a load application step, an exposing step, a measurement step, and a selecting step. In the load application step, a compressive load is applied to a laminate body in a laminating direction thereof, the laminate body being formed by sandwiching an adhesive between a first resin film and a second resin film. In the exposing step, the laminate body is exposed to an environment heated to a predetermined temperature and humidified to a predetermined humidity. In the measurement step, a flow amount of the adhesive during the exposing step is measured. In the selecting step, the adhesive having the flow amount equal to or less than a predetermined amount is selected as an adhesive used for the power generation cell.