Yoshitaka Tateyama

Scandium Doping and Coating for Improving O3‐NaNi 1/2 Mn 1/2 O 2 Electrode in Sodium Battery

ABSTRACT Scandium ion, Sc 3+ , was introduced into O3‐Na[Ni 1/2 Mn 1/2 ]O 2 either by bulk doping or by surface coating. We prepared O3‐type Na[(Ni II 1/2 Mn IV 1/2 ) 1‐ x Sc III x ]O 2 and Sc 2 O 3 ‐coated Na[Ni 1/2 Mn 1/2 ]O 2, and the resulting materials were systematically co...