POLYMER ELECTROLYTE FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL, METHOD OF PREPARING SAME, AND POLYER ELECTROLYTE MEMBRANE FUEL CELL SYSTEM INCLUDING SAME

摘要

PURPOSE: A polymer electrolyte membrane is provided to have excellent dimensional stability while maintaining internal impregnation, and to improve adhesion with a binder, thereby improving an electrochemical performance and long term performance of a membrane-electrode assembly. CONSTITUTION: A polymer electrolyte membrane comprises hydrocarbon-based hydrogen ion conductivity polymer membrane and has a surface contact angle of 80-180 degrees. A manufacturing method of the electrolyte membrane comprises a step of hydrophobically treating the hydrocarbon-based hydrogen ion conductive polymer film using plasma. A hydrophobic treatment using the plasma uses a first gas selected from argon gas, nitrogen gas, oxygen gas, helium gas, and combinations thereof; and a second gas selected from hydrocarbon gas, fluorocarbon gas, and a combination thereof. [Reference numerals] (AA) Electrode base material; (BB) Binder; (CC) Catalyst; (DD) Electrolytic membrane; (EE) Catalytic layer(catalyst + binder);