Ballard Power Systems Inc.
Membrane electrode assembly with improved electrode

Last updated:

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:
Grant
Type:

Utility

Filling date:

31 Jul 2017

Issue date:

21 Jun 2022