Recent Developments of Antimony-Based Anodes for Sodium- and Potassium-Ion Batteries

Abstract The development of sodium-ion (SIBs) and potassium-ion batteries (PIBs) has increased rapidly because the abundant resources cost-effectiveness Na K. Antimony (Sb) plays an important role in SIBs PIBs its high theoretical capacity, proper working voltage, low cost. However, Sb-based anodes have drawbacks large volume changes weak charge transfer during discharge processes, thus leading to poor cycling rapid capacity decay. To address such drawbacks, many strategies a variety materials been developed recent years. This review systematically introduces research progress for from perspective composition selection, preparation technologies, structural characteristics, energy storage behaviors. Moreover, corresponding examples are presented illustrate advantages or disadvantages these anodes. Finally, we summarize challenges Na/K-ion propose potential directions their further development.