| abstract |
The present application relates to a positive electrode, a method of manufacturing the same, and a metal-air battery and an electrochemical device including the positive electrode. The positive electrode includes a porous conductive metal oxide represented by formula 1, wherein the conductive metal oxide has about 2m 2 G to about 10m 2 A specific surface area of/g, wherein, in formula 1, L is at least one of a lanthanide or an actinide, and 0<x<1，0<y<1 and 0<z is less than or equal to 1. Formula 1L x Ru y O x 。 |