| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid polymer electrolyte membrane stably providing power generation performance for a long time under a working condition of no humidification or a relative humidity of 50% or below at a working temperature of 100°C to around 300°C, and to provide the manufacturing method of the solid polymer electrolyte membrane and a fuel cell using it. <P>SOLUTION: The solid polymer electrolyte membrane contains a polymer compound having a side chain containing a constitutional unit (a) represented by the formula in the portion of a nitrogen atom of a nitrogen heterocycle constituting polybenzimidazoles, and the fuel cell uses the solid polymer electrolyte membrane. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
