POLYMER ELECTROLYTE MEMBRANE, ITS MANUFACTURING METHOD, AND DIRECT METHANOL TYPE FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a polymer electrolyte membrane of high proton conductivity with polymer electrolyte uniformly filled in a high rate.

SOLUTION: The polymer electrolyte membrane is made of electrolyte polymer with a proton conductive function filled in continuous pores of polymer porous films three-dimensionally and regularly aligned at a filling rate of 80% or more. It can be obtained by a step of immersing the polymer porous films with pores three-dimensionally and regularly aligned in solution with electrolyte polymer having a proton conductive function dissolved in a solvent, that is, a step of swelling the porous films in the solvent, and a step of filling the electrolyte polymer in the pores of the polymer porous films by removing the solvent, after swelling the pores of the polymer porous films in the solution.

COPYRIGHT: (C)2011,JPO&INPIT