Patent ID: 8795923
Filing Date: 2014-08-05
Classification: C08J,H01B,H01M,Y02E,Y02P

Abstract:
1. A reinforced electrolyte membrane for a fuel cell comprising a porous substrate impregnated with a polyelectrolyte liquid dispersion, wherein either the maximum tensile strength in the machine direction for sheet processing (MD) or the maximum tensile strength in the transverse direction (TD) vertical to the MD direction for the electrolyte membrane is 40 N/mm 2 or more at 80° C. at a relative humidity of 90%, wherein the relative elongation value is 0.4 to 1.0, provided that the value is obtained by designating, as a denominator, the larger of the degree of elongation in the machine direction (MD) and the degree of elongation in the transverse direction (TD) vertical to the MD direction at the maximum tensile strength of the electrolyte membrane.