Research progress of organic liquid electrolyte for sodium ion battery

Frontiers in Chemistry

Chemistry

Huaiyou Wang¹  Jianwei Li¹  Min Wang¹  Jia Zhang² 

[1] Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, China;Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining, China;Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, China;Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining, China;School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China;

关键词: sodium ion battery;    organic liquid electrolyte;    cathode;    anode;    solid electrolyte interphase (SEI);   

DOI  :  10.3389/fchem.2023.1253959

 received in 2023-07-06, accepted in 2023-08-23,  发布年份 2023

来源: Frontiers

【 摘 要 】

Electrochemical energy storage technology has attracted widespread attention due to its low cost and high energy efficiency in recent years. Among the electrochemical energy storage technologies, sodium ion batteries have been widely focused due to the advantages of abundant sodium resources, low price and similar properties to lithium. In the basic structure of sodium ion battery, the electrolyte determines the electrochemical window and electrochemical performance of the battery, controls the properties of the electrode/electrolyte interface, and affects the safety of sodium ion batteries. Organic liquid electrolytes are widely used because of their low viscosity, high dielectric constant, and compatibility with common cathodes and anodes. However, there are problems such as low oxidation potential, high flammability and safety hazards. Therefore, the development of novel, low-cost, high-performance organic liquid electrolytes is essential for the commercial application of sodium ion batteries. In this paper, the basic requirements and main classifications of organic liquid electrolytes for sodium ion batteries have been introduced. The current research status of organic liquid electrolytes for sodium ion batteries has been highlighted, including compatibility with various types of electrodes and electrochemical properties such as multiplicative performance and cycling performance of electrode materials in electrolytes. The composition, formation mechanism and regulation strategies of interfacial films have been explained. Finally, the development trends of sodium ion battery electrolytes in terms of compatibility with materials, safety and stable interfacial film formation are pointed out in the future.

【 授权许可】

Unknown   
Copyright © 2023 Zhang, Li, Wang and Wang.

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