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Recent progress in electrode materials for aqueous sodium and potassium ion batteries
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2021-08-18 , DOI: 10.1039/d1qm01011e
Yingying Wang 1 , Dan Liu 2, 3 , Meiling Sun 2 , Jinping Liu 1, 2, 4
Affiliation  

Due to their safety, environmental benignity, and affordability, aqueous sodium/potassium-ion batteries (ASIBs/APIBs) have attracted increasing attention as promising candidates for large-scale stationary energy storage systems. Nevertheless, the practical applications of ASIBs/APIBs are hindered by their poor cyclability and low efficiency, which are mainly caused by the narrow thermodynamic voltage window and (electro-)chemical instability of electrode materials in aqueous electrolytes. Therefore, recent research is focused primarily on searching for new electrode materials and understanding their fundamental aqueous reaction mechanisms. This review presents the recent advances in novel electrode materials of ASIBs/APIBs, the operation mechanism of representative materials, and new findings based on the preparation and modification approaches. The redox potentials of typical cathode and anode materials used in ASIBs/APIBs, in comparison with the electrochemical stability window of aqueous electrolytes, are summarized. Brief discussions on future opportunities and challenges in this field are further presented at the end. We hope that this review will be helpful for designing high-performance ASIBs/APIBs and stimulate more research progress.

中文翻译:

水钠钾离子电池电极材料研究进展

由于其安全性、环境友好性和可负担性,水性钠/钾离子电池(ASIBs/APIBs)作为大型固定储能系统的有希望的候选者越来越受到关注。然而,ASIBs/APIBs 的实际应用受到其循环性能差和效率低的阻碍,这主要是由于窄的热力学电压窗口和电极材料在水性电解质中的(电化学)不稳定性造成的。因此,最近的研究主要集中在寻找新的电极材料并了解其基本的水性反应机制。本综述介绍了 ASIBs/APIBs 新型电极材料的最新进展、代表性材料的运行机制以及基于制备和改性方法的新发现。总结了用于 ASIBs/APIBs 的典型正极和负极材料的氧化还原电位,与水性电解质的电化学稳定性窗口相比。最后进一步简要讨论了该领域未来的机遇和挑战。我们希望这篇综述有助于设计高性能的 ASIBs/APIBs 并激发更多的研究进展。
更新日期:2021-09-09
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