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Polymer membrane for a fuel cell, a method of preparing the same, and a membrane-electrode assembly fuel cell system comprising the same

  • US 8,313,873 B2
  • Filed: 07/14/2009
  • Issued: 11/20/2012
  • Est. Priority Date: 06/24/2005
  • Status: Expired due to Fees
First Claim
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1. A method of preparing a polymer electrolyte membrane for a fuel cell, comprising:

  • preparing a metal-bound inorganic ion-conductive salt by reacting a metal compound and an inorganic ion conductor in a solvent;

    mixing 1 to 20 parts by weight of the inorganic ion-conductive salt with an ion-conductive cation polymer resin solution to form a mixture, wherein the cation polymer resin solution contains 100 parts by weight of an ion-conductive cation polymer resin; and

    casting or electrospinning the mixture to produce a polymer electrolyte membrane comprising the metal-bound inorganic ion-conductive salt.

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