水系钠离子电池电极材料研究进展

Advances in Electrode Materials for Aqueous Rechargeable Sodium-Ion Batteries

随着太阳能、风能等可再生能源发电并网普及应用和智能电网建设,储能技术成为能源优化利用的核心技术之一。水系钠离子电池具有资源丰富、价格低廉等优势,作为未来电网储能的重要选择而成为近年来电化学储能技术前沿的研究热点。由于受到水的热力学电化学窗口限制及嵌钠反应的特殊性(例如溶液的p H值、氧的溶解等),以及容量、电化学电位、适应性及催化效应等重点。本文简的最新研究进等,电极材料选简要概括了水系进展进行了总结选择面临挑战系钠离子电池的结,并概括了将,进而影响水的特点,并对氧将来的发展方向水系钠离子电池氧化物、聚阴离向,为推动水系池的应用。因此离子化合物、普系钠离子电池的此,电极材料成普鲁士蓝类似物的发展和能源优成为水系钠离子物和有机物等优化研究奠定了子电池的研究电极材料体系了基础。

With solar, wind, and other types of renewable energy incorporated into electrical grids and with the construction of smart grids, energy storage technology has become essential to optimize energy utilization. Due primarily to its abundance and low cost, aqueous rechargeable sodium-ion batteries （ARSBs） have received increasing attention in the field of electrochemical energy storage technology, and represent a promising alternative to energy storage in future power grids. However, because of the limitations of the thermodynamics of electrochemical processes in water, reactions in aqueous solution are more complicated compared to an organic system. Many parameters must be taken into account in an aqueous system, such as electrolyte concentration,dissolved oxygen content, and pH. As a result, it is challenging to select an appropriate electrode material, whose capacity, electrochemical potential, adaptability, and even catalytic effect may seriously affect the battery performance and hamper its application. Therefore, the development of advanced electrode materials, which can suppress side reactions of the battery and have good electrochemical performance discusses the characteristics of ARSBs and summarizes has become the focus of ARSB research. This paper briefly the latest research progress in the development of electrode materials, including oxides, polyanionic compounds, Prussian blue analogues, and organics. This review also discusses the challenges remaining in the development of ARSBs, and suggests several ways to solve them, such as by using multivalent ions, hybridized electrolytes, etc., and speculates about future research directions. The studies and concepts discussed herein will advance the development of ARSBs and promote the optimization of energy utilization.