Characterization of a P2-type chelating-agent-assisted Na2/3Fe1/2Mn1/2O2 cathode material for sodium-ion batteries

Abstract

A chelating-agent-assisted Na_2/3Fe_1/2Mn_1/2O₂ material is studied as a cathode for sodium-ion batteries. The addition of NH₄OH results in the formation of a homogeneous powder with a lower resistance and larger carbon content on the cathode surface. The formation of a thin and stable solid-electrolyte interface layer leads to its enhanced electrochemical performance.