Sodium‐Ion Batteries: O3‐Type Layered Ni‐Rich Oxide: A High‐Capacity and Superior‐Rate Cathode for Sodium‐Ion Batteries (Small 52/2019)

In article number 1905311, Jun Yang, Yongyao Xia, and co-workers design an O3-type layered Ni-rich oxide cathode through an electrochemical Li+/Na+ exchange strategy. Benefiting from its high-active and open layered framework for fast ion transport, the Na-intercalated cathode demonstrates a high reversible capacity and superior rate capability, which has potential applications in the field of large-scale energy-storage.