钠离子电池电解液添加剂的研究进展

Research Progress of Electrolyte Additives for Sodium-Ion Batteries

随着锂离子电池价格的显著上涨,低成本、高能效的钠离子电池引起了广泛关注。电解液作为连接钠离子电池正负极材料的桥梁,具有至关重要的作用。针对不同电极材料构建适合的电解液体系,可以有效地提升钠离子电池的首次库伦效率、循环稳定性以及倍率性能。阐述了各类电解液添加剂在钠离子电池体系中的研究进展,并探讨了界面膜的形成机理;对未来电解液添加剂的研究方向进行了展望。

With the significant increase in the price of lithium-ion batteries,low-cost,energy-efficient sodium-ion batteries have attracted widespread attention.As a bridge connecting the positive and negative materials of sodium ion batteries,the electrolyte plays a crucial role.The first coulomb efficiency,cycle stability and rate performance of sodium-ion batteries can be effectively improved by constructing suitable electrolytic liquid system for different electrode materials.In this paper,the research progress of various electrolyte additives in sodium-ion battery systems,the formation mechanism of interface film and the future research direction of electrolyte additives have been discussed.