A STUDY OF CU-DOPING EFFECTS IN NA2MN3O7 LAYERED CATHODE MATERIAL FOR SODIUM-ION BATTERY

Abstract

In recent years, sodium-ion batteries (SIBs) attracted great attention owing to their rich Earth-abundant resources, environmental friendliness, low cost, and high energy efficiency. To be compared to lithium-ion batteries the developing advanced cathodes play a key role in enhancing the performance of SIBs. Layered transition metal oxides NaxMO2 (M = Co, Mn, Fe, Ni, etc.) are one of the promising cathodes for SIBs due to the variable composition, abundant active center, and good electrochemical performance.