FUEL CELL MEMBRANE HUMIDIFIER
    132.
    发明公开

    公开(公告)号:US20240063409A1

    公开(公告)日:2024-02-22

    申请号:US18260952

    申请日:2022-01-27

    CPC classification number: H01M8/04149

    Abstract: The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid flowing between the hollow fiber membranes to improve humidification efficiency. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a mid-case; a cap fastened to the mid-case; a plurality of hollow fiber membranes disposed in the mid-case and exchanging moisture with an air supplied from the outside and flue gas introduced from a fuel cell stack to humidify the air; and a clearance adjustment pipe disposed between the plurality of hollow fiber membranes and formed of a material having a thermal expansion coefficient different from that of the plurality of hollow fiber membranes, so as to adjust the clearance between the plurality of hollow fiber membranes according to a temperature of flue gas.

    FUEL CELL MEMBRANE HUMIDIFIER AND FUEL CELL SYSTEM COMPRISING SAME

    公开(公告)号:US20240055626A1

    公开(公告)日:2024-02-15

    申请号:US18260257

    申请日:2022-01-05

    CPC classification number: H01M8/04149 H01M8/04111 H01M2008/1095

    Abstract: The present invention relates to a fuel cell membrane humidifier, into which an exhaust gas discharged from a fuel cell stack is bidirectionally introduced to improve the humidification efficiency, and a fuel cell system comprising same. The fuel cell system according to an embodiment of the present invention comprises: a blower for supplying dry gas; a fuel cell stack; and a fuel cell membrane humidifier including a mid-case, a first exhaust gas inlet formed at one side of one surface of the mid-case, a second exhaust gas inlet formed at the other side of the one surface of the mid-case, a first exhaust gas outlet formed at one side of the other surface of the mid-case, and a second exhaust gas outlet formed at the other side of the other surface of the mid-case.

    Catalyst, preparation method therefor, electrode comprising same, membrane-electrode assembly, and fuel cell

    公开(公告)号:US11831025B2

    公开(公告)日:2023-11-28

    申请号:US16957530

    申请日:2018-12-03

    Inventor: Jung-Ho Kim

    CPC classification number: H01M4/926 H01M4/8673 H01M8/1004

    Abstract: A catalyst, a preparation method therefor, an electrode containing the catalyst, a membrane-electrode assembly, and a fuel cell are disclosed. The catalyst contains a support; metal particles supported by the support; and a coating layer located on the metal particles, and includes any one selected from the group consisting of phthalocyanine, M-phthalocyanine (wherein M is a transition metal) and a mixture thereof. The catalyst has improved durability since a coating layer is formed on the surface of a commercial catalyst or a conventional catalyst through a relatively easy method without separate treatment. A carbon coating layer formed by post-treating a catalyst including the coating layer further improves durability. Material transfer ability and performance are also improved by a carbon nanofiber or a carbon nanotube generated during post-treatment.

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