An electrolyte membrane having a porous base material having pores filled with a first polymer capable of conducting a proton, wherein the porous base material comprises at least one second polymer selected from the group consisting of polyimides and polyamides; and a fuel cell, particularly a solid polymer fuel cell, more specifically a direct methanol polymer fuel cell, using the electrolyte membrane. The electrolyte membrane is excellent in the inhibition of permeation of methanol, exhibits no or reduced change in its area, and is excellent in proton conductivity.
一种电解质膜,它具有多孔基底材料,基底材料的孔隙中填充有能够传导质子的第一种聚合物,其中多孔基底材料包括至少一种选自聚
酰亚胺和聚酰胺组成的组的第二种聚合物;以及一种使用该电解质膜的燃料电池,特别是固体聚合物燃料电池,更具体地说是直接
甲醇聚合物燃料电池。电解质膜在抑制
甲醇渗透方面表现优异,其面积无变化或变化较小,质子传导性优异。