Strategies to Build High‐Rate Cathode Materials for Na‐Ion Batteries

The development of cathode materials for Na‐ion batteries (NIBs) has benefitted greatly from previous research on Li‐ion batteries (LIBs) due to the similar physicochemical properties between Na and Li. However, the exploitation of high‐rate NIB cathodes has faced greater difficulty compared to the Li counterparts because of the larger ionic radius of Na. Numerous attempts to optimize the composition and structure have been made to address this issue, and great progress has been achieved in recent years. Herein, a systemic review on the latest research in high‐rate cathode materials for NIBs is presented. In addition, a comprehensive analysis on specific reasons hindering the kinetic performance is also discussed, which is expected to deepen the understanding of the mechanisms behind rate performance and provides a new avenue for the design of high‐performance NIBs.