摘要:
The present invention discloses a membrane for direct-liquid fuel cell, comprised of a layered cation-exchange membrane whose one side is constituted by A) a cation-exchange membrane layer of low water content type having a water content of 1 to 15% by mass at a relative humidity of 50% RH (25°C) and whose other side is constituted by B) a cation-exchange membrane layer of high water content type having, at a relative humidity of 100% RH (25°C), a water content which is higher, by 3% by mass ore more, than the water content of the cation-exchange membrane layer of low water content type at a relative humidity of 100% RH (25°C), the layered cation-exchange membrane having an electrical resistance of 0.5 to 0.01 Ω·cm 2 in a 1 mol/L aqueous sulfuric acid solution at 25°C.