COMPLEX CATALYST FOR RECHARGEABLE METAL-AIR BATTERY METHOD FOR MANUFACTURING THE SAME AIR ELECTRODE FOR RECHARGEABLE METAL-AIR BATTERY INCLUDING THE SAME AND METAL-AIR BATTERY

摘要

According to an embodiment of the present invention, a complex catalyst for a metal-air battery is represented by chemical formula 1, A_2[B_(2-x)A_x]O_(7-y), and has a pyrochlore structure. In chemical formula 1: A represents Pb, Bi, Y, Sm, Gd, Tb, Dy, Ho, Er, or Yb; B is Ru or Ir; x is a real number satisfying an inequation, 0 = x = 0.1; and y is a real number satisfying an inequation, 0 = y = 1. The complex catalyst for a metal-air battery has excellent oxygen reduction and generation characteristics in comparison to conventional metal oxides.