Research Progress in Organic Electrolyte for Sodium Ion Battery
Sodium ion batteries have garnered significant attention due to its advantages such as abundant resources,low cost and similar properties to lithium ion batteries.As a crucial component in sodium ion batteries,electrolyte plays a crucial role in determining the battery's electrochemical performance.Meanwhile,the utilization of organic electrolytes in sodium ion batteries is widespread owing to their low viscosity,high dielectric constant,and excellent compatibility with commonly employed positive and negative materials.Howe ver,certain challenges still persist,including low oxidant potential,high flammability,and limited cycle performance.Therefore,reasonable design of high performance and low cost organic electrolyte is very important for the commercial application of sodium-ion batteries.Herein,this study classifies and summarizes the development status of sodium battery organic electrolyte from three aspects:solvent,sodium salt and additive,discusses the influence of organic electrolyte composition on the battery performance and the properties of solid electrolyte interphase.The future research work of sodium battery electrolyte is also prospected.
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