PROCESS FOR PRODUCING SOLID POLYMER ELECTROLYTE MEMBRANE, AND SOLID POLYMER ELECTROLYTE MEMBRANE

Title:

PROCESS FOR PRODUCING SOLID POLYMER ELECTROLYTE MEMBRANE, AND SOLID POLYMER ELECTROLYTE MEMBRANE

Document Type and Number:

WIPO Patent Application WO/2008/146766

Kind Code:

A1

Abstract:

This invention provides a process for producing a reinforced solid polymer electrolyte membrane which has further improved durability against wetting/drying cycle and freezing/thawing cycle. The process for producing a reinforced solid polymer electrolyte membrane is characterized by impregnating a polymer electrolyte precursor in the absence of a solvent into (1) a sheet-shaped porous reinforcing material at a temperature above the melting point of the sheet-shaped porous reinforcing material, or (2) the sheet-shaped porous reinforcing material at a first temperature, which is a temperature below the melting point of the sheet-shaped porous reinforcing material, then heat treating the impregnated sheet-shaped porous reinforcing material at a second temperature which is a temperature above the melting point of the sheet-shaped porous reinforcing material and then hydrolyzing the polymer electrolyte precursor to convert the precursor to a polymer electrolyte.

Inventors:

ISHIKAWA MASAHIKO (JP)
TAKANE TOMOYUKI (JP)

Application Number:

PCT/JP2008/059611

Publication Date:

December 04, 2008

Filing Date:

May 20, 2008

Export Citation:

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Assignee:

JAPAN GORE TEX INC (JP)
ISHIKAWA MASAHIKO (JP)
TAKANE TOMOYUKI (JP)

International Classes:

H01M8/02; H01B13/00; H01M8/10

Foreign References:

JP2005327500A	2005-11-24
JP2000510510A	2000-08-15
JP2006253124A	2006-09-21
JP2005162784A	2005-06-23
JP2006049002A	2006-02-16
JPH11501964A	1999-02-16
JP2005327500A	2005-11-24
JPH11501964A	1999-02-16
JP2006253124A	2006-09-21

Other References: