| abstract |
PROBLEM TO BE SOLVED: To provide a polymer electrolyte membrane for a direct oxidation fuel cell, which has excellent electrochemical characteristics, thermal stability, dimensional stability and mechanical characteristics, and can reduce the crossover of hydrocarbon fuel. I will provide a. The present invention relates to a polymer electrolyte membrane for a direct oxidation fuel cell, a method for producing the polymer electrolyte membrane, and a direct oxidation fuel cell system including the polymer electrolyte membrane, the polymer electrolyte membrane having a plurality of pores having high porosity. A molecular support, and a cation exchange resin present in the polymer support and a hydrocarbon fuel diffusion preventing layer including an inorganic additive dispersed in the cation exchange resin. [Selection] Figure 9 |