COMPOSITE PROTON CONDUCTING ELECTROLYTE WITH IMPROVED ADDITIVES FOR FUEL CELLS

摘要

Improved additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells. Use of these improved additives can not only improve durability and performance, but can also provide a marked performance improvement during initial conditioning of the fuel cells. The additives are chemical complexes comprising certain metal and organic ligand components.

主权项

1. A proton conducting composite polymer electrolyte for a membrane electrode assembly in a solid polymer electrolyte fuel cell comprising a proton conducting ionomer and an amount of a (1st ligand)(metal) complex additive wherein:
the (metal) in the complex is selected from the group consisting of metals, metal alloys, metal oxides, metal salts and combinations thereof; the (1st ligand) in the complex comprises a molecule or polymer bearing the metal chelating moieties of the molecule wherein the chemical structure of the molecule is a derivative of the heterocycle quinoline.