The structure of layered oxides dictates their properties as positive electrodes in sodium-ion batteries, but its rational design remains challenging. Here, authors employ electronegativity and configurational entropy as a design descriptor to guide the synthesis of a sodium-deficient layered oxide with an O3 stacking sequence, rendering good thermal and air stability.
- Lu Gan
- Hu-Rong Yao
- Yu-Guo Guo
