钠离子电池电解质的研究进展

相比锂离子电池来说,钠离子电池因高能量密度和低成本引起广泛关注。作为电池重要组成部分的电解质,对电池性能的发挥至关重要。简要介绍了液、固态电解质体系在钠离子电池中的研究进展,讨论这些电解质体系的电导率、电性能、电化学性能、热稳定性等特点。现今钠离子电池大多使用的是液体电解液,而液体电解液在具有高离子电导率的同时,安全性仍有待改善。而固态电解质还有许多基础科学需要探索,并且需要考虑电导率、成本等因素。基于以上评述,希望对钠离子电池电解质的研究发展提供帮助。

Research Progress of Sodium Ion Battery Electrolytes

Sodium ion batteries have drawn much attention due to their high energy density and low cost compared to lithium ion batteries. Electrolytes, as an important part of the battery, are critical to the performance of the battery. Most of today''s sodium-ion batteries use liquid electrolytes, while liquid electrolytes have high ionic conductivities, and at the same time they also have safety issues such as electrolyte leakage and corrosion. Sodium ion solid state batteries use the solid electrolyte instead of the liquid electrolyte, have good safety, high ionic conductivity, and the ideal chemical power source for energy storage. In this paper, the electrical and electrochemical properties of sodium-ion battery electrolytes were summarized, which should be hoped to provide help for the research and development of sodium ion battery electrolyte.