Heat treatment apparatus of MEA for fuel cell

    公开(公告)号:US11251456B2

    公开(公告)日:2022-02-15

    申请号:US16418121

    申请日:2019-05-21

    摘要: A heat treatment apparatus for a fuel cell membrane-electrode assembly is provided. The heat treatment apparatus includes a hot press installed on upper and lower sides of feeding path to move in the vertical direction on a frame and which presses the electrode catalyst layers on upper and lower surfaces of the membrane-electrode assembly sheet. A plurality of gripper modules are installed at set intervals in a base member along a feeding direction of the membrane-electrode assembly sheet, and selectively grip both side edges of the membrane-electrode assembly sheet. A driving unit reciprocally moves the base member in a direction perpendicular to the feeding direction of the membrane-electrode assembly sheet and in the feeding direction of the membrane-electrode assembly sheet.

    Separator for fuel cell and fuel cell stack

    公开(公告)号:US10658681B2

    公开(公告)日:2020-05-19

    申请号:US15035002

    申请日:2014-10-29

    摘要: An object is to equalize the level of cooling along a top-bottom direction of a fuel cell stack. A fuel cell stack has an anode-side separator placed between a plurality of membrane electrode assemblies. The anode-side separator comprises a separator center area that is arranged to face a power generation area of the membrane electrode assembly; an outer peripheral portion that is extended from the separator center area to outer periphery and has a plurality of openings for cooling medium supply manifolds; and a rib that is firmed from a beam portion provided to separate the adjacent openings for cooling medium supply manifolds from each other, over an area between the openings for cooling medium supply manifolds and the separator center area.

    HEAT TREATMENT APPARATUS OF MEA FOR FUEL CELL

    公开(公告)号:US20200153017A1

    公开(公告)日:2020-05-14

    申请号:US16418121

    申请日:2019-05-21

    摘要: A heat treatment apparatus for a fuel cell membrane-electrode assembly is provided. The heat treatment apparatus includes a hot press installed on upper and lower sides of feeding path to move in the vertical direction on a frame and which presses the electrode catalyst layers on upper and lower surfaces of the membrane-electrode assembly sheet. A plurality of gripper modules are installed at set intervals in a base member along a feeding direction of the membrane-electrode assembly sheet, and selectively grip both side edges of the membrane-electrode assembly sheet. A driving unit reciprocally moves the base member in a direction perpendicular to the feeding direction of the membrane-electrode assembly sheet and in the feeding direction of the membrane-electrode assembly sheet.

    SINGLE CORRUGATED FUEL CELL AND CELL STACK

    公开(公告)号:US20230025359A1

    公开(公告)日:2023-01-26

    申请号:US17937875

    申请日:2022-10-04

    摘要: The invention relates to a single corrugated fuel cell and a cell stack. The single cell comprises an anode plate, a cathode plate, and a membrane electrode assembly; the anode plate is of a corrugated structure and a plurality of anode channels and anode ribs are arranged on the anode plate in parallel; the cathode plate is of a corrugated structure engaged with the anode plate and a plurality of cathode channels and cathode ribs are arranged on the cathode plate in parallel; the membrane electrode assembly is arranged between the anode plate and the cathode plate. The single cell presents a corrugated structure in a width direction of the channel. A plurality of single cells are stacked in sequence to form a fuel cell stack. Compared with the prior art, the invention significantly increases the reaction area per unit volume of the fuel cell through the corrugated structural design, thereby improving the power density of the fuel cell. In addition, the present invention has little change to the existing processing and manufacturing technology, and thus has high production feasibility.

    INTEGRATED PLATE AND CELL SEALING

    公开(公告)号:US20220069319A1

    公开(公告)日:2022-03-03

    申请号:US17459217

    申请日:2021-08-27

    申请人: HYZON MOTORS INC.

    摘要: A bipolar plate assembly includes a first frame member, a second frame member, and a membrane electrode assembly. The first frame member has a first side and a second side. The first side has a first side protuberance. The second frame member includes a first side and a second side. The second side has a second side recess. The membrane electrode assembly has an anode plate and a cathode plate. A portion of the membrane electrode assembly is disposed between the first frame member and the second frame member. The portion of the membrane electrode assembly has a juxtaposition of the anode plate and the cathode plate. The first side protuberance of the first frame member deforms the portion of the membrane electrode assembly into the second side recess of the second frame member.

    SEPARATOR FOR FUEL CELL
    10.
    发明申请

    公开(公告)号:US20200251751A1

    公开(公告)日:2020-08-06

    申请号:US16750467

    申请日:2020-01-23

    发明人: Satoshi KAWABE

    摘要: A separator for a fuel cell includes a separator base, crest sections, and trough sections. Regions surrounded by the respective trough sections and a corresponding electrode layer each constitute a passage that supplies oxidation gas or fuel gas to the electrode layer. A thin film having conductivity is placed at least on the top surface of each crest section. The thin film on the top surface of each crest section has a groove that connects the passages on the opposite sides of the crest section to each other. Each trough section has a flow resistance increasing portion on the downstream side of the groove in the flow direction of the gas. The flow resistance increasing portion reduces the cross-sectional flow area of the passage such that the cross-sectional flow area at the flow resistance increasing portion is smaller than that at the section to which the groove is connected.