Competing mechanisms determine oxygen redox in doped Ni-Mn based layered oxides for Na-ion batteries

Cation doping is an effective strategy for improving the cyclability of layered oxide cathode materials through suppression of phase transitions in the high voltage region (>~4.0V). In this study we choose Mg and Sc as representative dopants in P2- Na0.67Ni0.33Mn0.67O2. While both dopants have a pos... View More