Enhancing the Performance of Antimony‐Based Materials in Sodium‐Ion Batteries through Synthesis and Modification

Sodium‐ion batteries (SIBs) have become a strong competitor for the next generation of energy storage batteries, largely due to the earth abundance and economical nature of sodium. Their commercialization, however, faces obstacles such as pronounced volume expansion and structural instability of anode materials during cycling. Antimony (Sb)‐based compounds with high capacity have received great attention, yet their implementation is often limited by intricate synthesis routes and insufficient cyclic durability. This review systematically summarizes the solutions for the preparation and structural design of Sb‐based anodes. Through strategic material engineering and morphology control, substantial enhancements in cycling life and rate capability have been achieved. The evidence suggests that well‐designed Sb‐based anodes hold considerable promise for advancing SIB technology. Moving forward, research should prioritize efficient synthesis techniques, the discovery of alternative Sb sources, and the evaluation of these anodes in practical full‐cell configurations.