Abstract
Developments of perfluorinated ion exchange membrane for polymer electrolyte fuel cell in Asahi Kasei Corporation were introduced. The main topic was new membrane based on newly designed perfluorinated polymer. Its polymer had high Tg of around 150°C and high ion exchange capacity of 1.4 meq g-1. The membrane based on the polymer therefore had good thermo-stability and excellent proton conductivity. The membrane was expected to suit the high temperature cell operation with low humidification. This paper included the results of the work carried out under con-tract with New Energy and Industrial Technology Development Organization (NEDO) .
