Title:
SOLID POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELL AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2007/102418
Kind Code:
A1
Abstract:
Disclosed is a solid polymer electrolyte membrane for fuel cells which is characterized by being obtained by graft-polymerizing a polymerizable monomer to a resin film irradiated with a radiation in such a manner that the number of units of the graft chain is not more than 30, and then sulfonating the resulting film. Since the solid polymer electrolyte membrane produced by such a radiation graft polymerization has high ion conductivity and low methanol permeability, it is suitable as an electrolyte membrane for fuel cells, especially an electrolyte membrane for direct methanol fuel cells.
Inventors:
TSUKADA JUNICHI (JP)
OHBA TOSHIO (JP)
KAWADA NOBUO (JP)
OHBA TOSHIO (JP)
KAWADA NOBUO (JP)
Application Number:
PCT/JP2007/054011
Publication Date:
September 13, 2007
Filing Date:
March 02, 2007
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
TSUKADA JUNICHI (JP)
OHBA TOSHIO (JP)
KAWADA NOBUO (JP)
TSUKADA JUNICHI (JP)
OHBA TOSHIO (JP)
KAWADA NOBUO (JP)
International Classes:
H01M8/02
Foreign References:
| JP2002313364A | 2002-10-25 | |||
| JP2005078871A | 2005-03-24 | |||
| JP2006059776A | 2006-03-02 |
Attorney, Agent or Firm:
KOJIMA, Takashi (16-12 Ginza 2-chom, Chuo-ku Tokyo 61, JP)
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