Current trends and future challenges of electrolytes for sodium-ion batteries
Current trends and future challenges of electrolytes for sodium-ion batteries
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DOI：
10.1016/j.ijhydene.2015.12.090
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发表时间：
2016-01
影响因子：
7.2
通讯作者：
K. Vignarooban;R. Kushagra;A. Élango;P. Badami;B. Mellander;Xinhai Xu;T. Tucker;C. Nam;A. Kan
中科院分区：
文献类型：
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作者：
K. Vignarooban;R. Kushagra;A. Élango;P. Badami;B. Mellander;Xinhai Xu;T. Tucker;C. Nam;A. Kan
钠离子电池的研究和开发工作正在蓬勃发展，因为与锂离子电池相比，钠离子电池具有高能量密度和相对较低的成本的潜力。为了使钠离子电池在商业上可行，正在开发具有可接受的环境温度离子电导率和更宽的电化学稳定性窗口的高性能电解质。对自 1990 年以来各种类型的钠离子导电电解质的出版物进行的文献计量分析显示，总共有 200 多篇出版物，并且在过去几年中呈指数增长，原因是钠离子系统作为未来各种应用的大规模电源具有巨大的潜力。本综述总结了液体（非水、水和离子）、聚合物凝胶和固体（陶瓷、玻璃和固体聚合物）电解质的现状，并讨论了它们在钠离子电池中的离子电导率、热特性、电化学稳定性和粘度。在各种可用类型中，非水溶剂基电解质虽然易燃，但在离子电导率方面是最有前途的一种。
Research and development efforts on sodium-ion batteries are gaining momentum due to their potential to accommodate high energy density coupled with relatively lower cost in comparison with lithium-ion batteries. In order for the sodium-ion batteries to be commercially viable, high performance electrolytes with acceptable ambient temperature ionic conductivity and wider electrochemical stability windows are being developed. A bibliometric analysis of the publications on various types of Na+ion conducting electrolytes since 1990 shows a total of 200 + publications and reveals an exponential growth in the last few years, due to reasons that the sodium-ion systems promise great potential as the future large scale power sources for variety of applications. This review consolidates the status of liquid (non-aqueous, aqueous and ionic), polymer gel and solid (ceramics, glasses, and solid polymers) electrolytes and discusses their ionic conductivity, thermal characteristics, electrochemical stability and viscosity towards applications in sodium-ion batteries. Among various types available, the non-aqueous solvent based electrolyte is the most promising one in terms of ionic conductivity even though it is flammable.