| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve various characteristics required for an electrolyte membrane for a fuel cell. <P>SOLUTION: The electrolyte membrane contains a polymer base material constituted of olefinic polymer or fluoropolymer, and a graft chain having a functional group contributing to proton conductivity and introduced into the polymer base material, and the electrolyte membrane is uniaxially or biaxially extended. <P>COPYRIGHT: (C)2009,JPO&INPIT |
