| 摘要 |
An electrolyte membrane with high durability is provided. The electrolyte membrane includes a porous film containing a nitrogen-containing heterocyclic ring or a cyano group, and a proton conductive component existing in pores of the porous film, wherein the proton conductive component includes a polymer compound containing at least a nitrogen-containing heterocyclic ring, a cyano group, and an acidic group in one molecule.
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