ELECTROLYTE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL

摘要

The present invention relates to an electrolyte membrane, a membrane-electrode assembly, and a solid polymer fuel cell. The electrolyte membrane contains a polymer (1) having a hydrophobic structural unit and a structural unit having a proton-conducting group, and a polymer (2) having a hydrophobic structural unit that does not have a sulfonic acid group and that is different from the hydrophobic structural unit of the polymer (1).