Graphene-Metal Oxide Nanorod Composite Air Electrode for Li―Air Batteries, Fabrication Method for Preparing the Same, and Li―Air Batteries Comprising the Same

摘要

The present invention provides an air electrode for a lithium-air battery: which uses a metal oxide nanorod composite bound to graphene or reduced graphene oxide and having excellent catalytic activity as an air electrode of the lithium-air battery, for obtaining high capacity and improving rate capability due to the excellent electric conductivity and high specific surface area properties of graphene; and uses a one-dimensional metal oxide nanorod with nanopores as a catalyst for promoting the combination and separation of lithium and air and securing 10,000 mAh/g or more of discharge capacity and hundreds of cycles or longer lifetime and stability during a charging and discharging process at 1000 mAh/g.