Patent ID: 7094851
Filing Date: 2006-08-22
Classification: C08F,H01M,Y02E,Y02P

Abstract:
1. A fluorinated ionomer comprising a substantially fluorinated backbone with pendant groups attached thereto, said pendant groups represented by the formula where X is F T or Cl or mixtures thereof; n is an integer equal to one; R f and R f are independently selected from the group consisting of F, Cl, perfluoroalkyl radical, and chloroperfluoroalkyl radical; Y is an acid group or a functional group convertible to acid group; a is zero or an integer greater than zero; and b is an integer greater than zero; wherein said ionomer has the combination of an equivalent weight between about 600 and about 950; together with a high room temperature ionic conductivity of greater than about 0.13 S/cm when measured on an acid form of a membrane of said ionomer.