Ballard Power Systems Inc.
MEMBRANE ELECTRODE ASSEMBLY WITH IMPROVED ELECTRODE

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Abstract:

A membrane electrode assembly comprises a polymer electrolyte interposed between an anode electrode and a cathode electrode, the anode electrode comprising an anode catalyst layer adjacent at least a portion of a first major surface of the polymer electrolyte, the cathode electrode comprising a cathode catalyst layer adjacent at least a portion of a second major surface of the polymer electrolyte; at least one of the anode and cathode catalyst layers comprising: a first catalyst composition comprising a noble metal; and a second composition comprising a metal oxide; wherein the second composition has been treated with a fluoro-phosphonic acid compound.

Status:
Application
Type:

Utility

Filling date:

16 May 2022

Issue date:

1 Sep 2022