Boosting the electrochemical performance and moisture stability of O3-type NaNi_1/3Fe_1/3Mn_1/3O₂ cathodes using novel Na₂MoO₄ coatings prepared via a polyvinylpyrrolidone-anchored complex coating process

Abstract

O3-type layered oxides are considered highly promising cathode materials for sodium-ion batteries owing to their notable specific capacities, high theoretical energy densities, and low costs. However, the applications of O3-type...

Mitigating the Jahn–Teller distortion and phase transition in the P2-Na0.67Ni0.33Mn0.67O2 cathode through large Sr2+ ion substitution for improved performance

“…7,8 While SIBs may not match the energy density of LIBs, they offer compelling advantages in terms of cost-effectiveness, specific capacity, rapid (de)sodiation kinetics, and good cycling performance. 9–11 The quest for reliable cathode materials is of paramount importance in meeting the escalating demand for renewable energy systems. 12,13 Among various cathode compounds, layered oxides (Na x TMO 2 , 0 < x ≦ 1; TM stands for transition metals, especially nickel and manganese) exhibit desirable characteristics such as excellent conductivity and high capacity.…”