Tin‐Based Anode Materials for Stable Sodium Storage: Progress and Perspective

Abstract Because of concerns regarding shortages of lithium resources and the urgent need to develop low‐cost and high‐efficiency energy‐storage systems, research and applications of sodium‐ion batteries (SIBs) have re‐emerged in recent years. Herein, recent advances in high‐capacity Sn‐based anode materials for stable SIBs are highlighted, including tin (Sn) alloys, Sn oxides, Sn sulfides, Sn selenides, Sn phosphides, and their composites. The reaction mechanisms between Sn‐based materials and sodium are clarified. Multiphase and multiscale structural optimizations of Sn‐based materials to achieve good sodium‐storage performance are emphasized. Full‐cell designs using Sn‐based materials as anodes and further development of Sn‐based materials are discussed from a commercialization perspective. Insights into the preparation of future high‐performance Sn‐based anode materials and the construction of sodium‐ion full batteries with a high energy density and long service life are provided.