Membrane electrode assembly and solid polymer fuel cell

    公开(公告)号:US11063284B2

    公开(公告)日:2021-07-13

    申请号:US16472146

    申请日:2017-12-19

    Inventor: Kazuki Noda

    Abstract: A membrane electrode assembly is provided that includes a nanostructured thin film catalyst as the anode electrode catalyst, the membrane electrode assembly having robustness to humidity variation. Additionally, a solid polymer fuel cell including this membrane electrode assembly is provided. A membrane electrode assembly of an embodiment of the present disclosure includes an electrolyte membrane; an anode electrode catalyst layer in contact with the electrolyte membrane; an anode gas diffusion layer; and a fluorinated polymer layer in contact with the anode electrode catalyst layer between the anode electrode catalyst layer and the anode gas diffusion layer. The anode electrode catalyst layer includes a plurality of nanostructure elements including acicular microstructured support whiskers supporting nanoscopic catalyst particles; and the fluorinated polymer layer includes one of fully-fluorinated or partially-fluorinated polymer particles that have been dispersed in a network form.

    MEMBRANE ASSEMBLIES, ELECTRODE ASSEMBLIES, MEMBRANE-ELECTRODE ASSEMBLIES AND ELECTROCHEMICAL CELLS AND LIQUID FLOW BATTERIES THEREFROM

    公开(公告)号:US20190051877A1

    公开(公告)日:2019-02-14

    申请号:US16085811

    申请日:2017-03-15

    Abstract: The present disclosure relates to membrane assemblies, electrode assemblies and membrane-electrode assemblies; and electrochemical cells and liquid flow batteries produced therefrom. The disclosure further provides methods of making the membrane assemblies, electrode assemblies and membrane-electrode assemblies. The membrane assemblies includes an ion permeable membrane and at least one transport protection layer. The electrode assemblies includes a porous electrode and a transport protection layer. The membrane-electrode assembly includes an ion permeable membrane, at least one transport protection layer and at least one porous electrode. The transport protection layer includes at least one of a woven and nonwoven non-conductive substrate comprising fiber and an ionic resin, which coats at least a portion of the fiber surface of the at least one of a woven and nonwoven non-conductive substrate.

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