Free-radical protected membranes
AssigneeCeladyne Technologies, inc.
InventorsErin Castele, Toru Hatsukade, Corey Staller, Gary Ong, Dana A. Kazerooni
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Abstract
The present disclosure relates to a polyelectrolyte membrane, comprising a polyelectrolyte and a metal complex, wherein: the metal complex comprises a metal cation and a ligand; and the ligand comprises three or more functional groups, wherein each functional group is independently selected from phosphonic acid, sulfonic acid, and carboxylic acid, or an anion thereof. The present disclosure further relates to methods of making the polyelectrolyte membrane, as well as membrane electrode assembly and fuel cell comprising the polyelectrolyte membrane.
Claims84
A polyelectrolyte membrane, comprising:
- a polyelectrolyte and a metal complex, wherein:
- the metal complex comprises a metal cation and a ligand;
- and
- the ligand comprises three or more functional groups, wherein each functional group is independently selected from phosphonic acid, sulfonic acid, and carboxylic acid, or an anion thereof.
The polyelectrolyte membrane of any one of claims 46-59, wherein the polyelectrolyte membrane is from about 0.5 μm to about 100 μm thick.
Dependencies are inferred from the claim text.