Patent ID: 8647793

Claim:
A solid proton conductor for a fuel cell, the solid proton conductor comprising: a sulfonated polymer; wherein the sulfonated polymer comprises a compound represented by Formula 8 below: wherein the R 1 's are identical or different, and are each independently a hydrogen, a C1-C10 alkyl group, a C2-C10 alkenyl group, a phenyl group, or a nitro group, p is an integer in a range of about 0 to about 4, X is —C(CF 3 ) 2 —, —C(CH 3 ) 2 —, or —PY′(═O)—, where Y′ is H or C 6 H 5 , M is Na, K, or H, m is a real number in a range of about 0.1 to about 10, n is a real number in a range of about 0.1 to about 10, and k is a real number in a range of about 5 to about 500; and a hydrophilic polymer having an acid group, constituting a polymer solvent, providing a proton mobile path.