Membrane electrode assembly

Membrane electrode assembly

  • CN 101,809,798 A
  • Filed: 09/18/2008
  • Published: 08/18/2010
  • Est. Priority Date: 09/25/2007
  • Status: Active Application
First Claim
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1. the membrane electrode assembly that has peripheral edge area and central area;

  • wherein said membrane electrode assembly comprises ion-conductive membranes;

    be arranged on a side of described ion-conductive membranes and first and second electrocatalyst layers on the opposite side;

    with first and second gas diffusion layers on a side that is separately positioned on described first and second electrocatalyst layers and the opposite side;

    wherein said membrane electrode assembly further comprises edge-protected member;

    described edge-protected member comprises rete;

    binder course and one or more are selected from by the free radical decomposition catalyst;

    from the regeneration antioxidant;

    hydrogen donor (H-donor) main anti-oxidant;

    the radicals scavenging secondary antioxidants;

    the additive of the group that oxygen absorbent (oxygen scavenger) and element palladium constitute;

    the peripheral edge area that described edge-protected member is arranged on described membrane electrode assembly is between the described film and described first and/or second gas diffusion layers, and wherein said edge-protected member and first and/or second electrocatalyst layers overlap joint.

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