Patent ID: 8026016

Claim:
A polymer electrolyte membrane, comprising: a porous polymer matrix; and a polymer coating that conducts ions, the polymer coating formed on the outer face of a single fiber in the porous polymer matrix, wherein the polymer coating is obtained by polymerizing an ion conducting polymeric compound using a crosslinking agent, wherein the polymer electrolyte membrane is obtained by vacuum deposition of a micro particle coating of the ion conducting polymer on individual fibers of a porous polymer matrix to obtain a polymer electrolyte wherein the membrane sterically surrounds the circumference of the individual fibers in the polymer matrix, wherein pores of the polymer electrolyte membrane are present after coating, wherein the ion conducting polymeric compound is a sulfonyl acrylate, a monomer, or an oligomer, and wherein the monomer and the oligomer comprise at least one functional group selected from a group consisting of an imide group, a sulfonimide group, a sulfonamide group, and a hydroxyl group at its terminal end.