O3-NaFe_(1/3–x)Ni_1/3Mn_1/3Al_xO₂ Cathodes with Improved Air Stability for Na-Ion Batteries

Na-ion batteries (NIBs) have been considered as potential candidates for large-scale energy storage, where O3-type Na-based layered oxide cathodes have attracted great attention due to their high capacity and low cost. However, O3-NaxTMO2 materials still suffer from insufficient air stability, which could lead to deteriorative electrochemical properties and thus hinder their practical application. In this work, a series of Al-doped...