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SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL

  • US 20090208807A1
  • Filed: 07/06/2006
  • Published: 08/20/2009
  • Est. Priority Date: 07/07/2005
  • Status: Abandoned Application
First Claim
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1. A producing method for a solid electrolyte membrane comprising the steps of:

  • (A) forming a casting membrane by casting a dope containing a solid electrolyte and an organic solvent onto a moving support;

    (B) peeling said casting membrane from said support as a wet membrane containing said organic solvent;

    (C) contacting at least one of said casting membrane and said wet membrane with a liquid which is a poor solvent of said solid electrolyte and having a lower boiling point than that of said organic solvent; and

    (D) drying said wet membrane to form a solid electrolyte membrane.

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