Patent ID: 8632926

Claim:
A solid proton conductor comprising: a polymer providing a proton source; a hydrophilic polymer providing a proton path; and at least one proton conductive additive selected from the group consisting of acid treated oxide nanoparticles and acid-treated oxide nanorods, wherein the hydrophilic polymer is selected from the group consisting of polyethylene oxide, polyethylene glycol, poly 2-ethyloxazoline, and mixtures thereof, wherein the acid treated oxide nanoparticles and acid-treated oxide nanorods are acid treated with an acid solution selected from the group consisting of a sulfuric acid, a phosphoric acid, acetic acid, and a mixture thereof, the solid proton conductor comprises 1 to 30 parts by weight of the proton conductive additive based on 100 parts by weight of the total weight of the polymer and the hydrophilic polymer.