Kolon Industries, Inc.

Hye Song Lee

Na Young Kim

Dong Hoon Lee

Eun Su Lee

Jung Hwa Park

Seung Jib Yum

Chang Hoon Oh

A polymer electrolyte membrane having improved chemical or mechanical durability is provided. The present disclosure relates to a polymer electrolyte membrane, and the polymer electrolyte membrane according to the present disclosure comprises a porous support and a composite layer containing a first ionomer filled in the porous support, wherein the polymer electrolyte membrane comprises a first segment having a first durability and a second segment having a second durability, and the first durability is higher than the second durability.

Polymer electrolyte membrane, membrane-electrode assembly comprising same, and fuel cell

Disclosed are: an ionomer dispersion having high dispersion stability while also containing high content of ionomer solids, thus optimizing the ionomer morphology in a polymer electrolyte membrane to allow both the ion conductivity and durability of the polymer electrolyte membrane to be improved; a method for producing the ionomer dispersion; and a polymer electrolyte membrane produced using the method.

Ionomer dispersion having high dispersion stability, method for producing same, and polymer electrolyte membrane produced using same

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Seoul, South Korea

Hye Song Lee