Abstract
Front cover image: Layered transition metal oxides are potential cathode materials for sodium ion batteries (SIBs). However, the poor air stability, Na+/vacancy ordering, and complex phase translation significantly limit their practical application. The synergy of dis-/ordered configuration could relieve these problems. In article number 10.1002/cnl2.53, a strategy of introducing new cation ordering has been proposed to construct the coexistence of Na+ disordering and transition metal ordering in layered oxide cathodes. The synergy of dis-/ordered configuration ensures the superior comprehensive performance originating from the suppressed P-O phase transition, suppressed Na+ rearrangement, and inhibited insertion of foreign molecules. These findings provide new insights to design high performance layered oxide cathode materials for secondary-ion batteries.
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