Catalyst layer composition for fuel cell, electrode for fuel cell, method of preparing electrode for fuel cell, membrane-electrode assembly for fuel cell, and fuel cell system using the membrane-electrode assembly

Abstract

A catalyst layer composition for a fuel cell includes an ionomer cluster, a catalyst, and a solvent including water and polyhydric alcohol; and an electrode for a fuel cell includes a catalyst layer comprising an ionomer cluster having a three-dimensional reticular structure, and a catalyst, a method of preparing a electrode for a fuel cell includes a catalyst layer comprising an ionomer cluster having a three-dimensional reticular structure, and a catalyst, and a membrane-electrode assembly for a fuel cell including the electrode and a fuel cell system including the membrane-electrode assembly.

Dependencies are inferred from the claim text.