Lg Chem, Ltd

Keunhwan Oh

Hyuk Joo Kim

Sunhwa Kim

Insung Bae

Sangwoo Lee

Curie Park

A core-shell particle with a ceramic core and a hydrogel shell provided on a surface of the ceramic core, wherein the hydrogel shell is formed through polymerizing a monomer comprising a first compound having an ethylenically unsaturated group and a functional group capable of forming hydrogen bonds with water and a second compound having two or more ethylenically unsaturated groups and an inorganic element, a polymer electrolyte membrane including the core-shell particle, a fuel cell or an electrochemical cell including the polymer electrolyte membrane, and a method for preparing a core-shell particle.

Core-shell particles, polymer electrolyte membrane comprising same, fuel cell or electrochemical cell comprising polymer electrolyte membrane, and method for manufacturing core-shell particles

The present specification provides a method for preparing a polymer electrolyte membrane including reducing a ketone group of a polyarylene ether ketone polymer of a polymer electrolyte membrane; and treating the polymer electrolyte membrane with sulfuric acid, a polymer electrolyte membrane prepared using the same, a membrane electrode assembly including the polymer electrolyte membrane, and a fuel cell including the membrane electrode assembly.

Polymer electrolyte membrane production method, polymer electrolyte membrane produced using same, membrane electrode assembly comprising said polymer electrolyte membrane, and fuel cell comprising said membrane electrode assembly

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Daejeon, South Korea

Keunhwan Oh