ELECTRODE CATALYST COMPRISING ACTIVE METAL COATED ON SPHERICAL CARBON PARTICLES, AND FUEL CELL COMPRISING THE SAME

摘要

The present invention relates to an electrode catalyst comprising a catalyst layer which is entirely coated on a surface of carbon sphere, and a fuel cell comprising the same. According to various embodiments of the present invention, the primary particle size, an average pore size of the catalyst layer and pore volume are increased by applying a globular catalyst having the large basic diameter, thereby a platinum use of an electrode can be significantly reduced by greatly reducing oxygen diffusion resistance which is a big problem in performance improvement of the electrode for a fuel cell, and fuel cell performance can be significantly increased.