Enhanced energy and O2 evolution efficiency using an in situ electrochemically N-doped carbon electrode in non-aqueous Li–O2 batteries

Abstract

N-doped carbon materials were prepared by in situ electrochemical pre-treatment of a carbon electrode in a deaerated non-aqueous electrolyte containing lithium nitrate. Li–O₂ batteries, applying the novel N-doped carbon electrode, show a significantly reduced overpotential and enhanced O₂-evolution efficiency.