基于可视化分析辅助探究钠离子电池硬碳负极研究进展

钠离子电池因成本低、安全性高等优势，已经成为当前储能领域的研究热点。为了明确钠离子电池硬碳负极的发展历程，解决钠离子电池初始库伦效率低、稳定性差以及高倍率性能差等问题，探索了硬碳中钠离子储存机制；运用CiteSpace可视化分析了钠离子电池的发展沿程，从材料设计、结构调控、功能设计及界面优化3个方面综述了硬碳负极的性能优化策略研究进展，并对现存硬碳储钠机制进行了总结与探讨。最后，对钠离子电池硬碳负极的发展方向进行了展望。

Research Progress of Hard Carbon Anode of Sodium⁃Ion Batteries Based on Visualization Analysis

Sodium?ion batteries have become one of the research hotspots in the field of energy storage because of their advantages of low cost and high safety. This paper tried to clarify the development history of the hard carbon anode of sodium?ion batteries and address the current disadvantages of sodium?ion batteries, such as low initial coulombic efficiency, poor stability, and insufficient high magnification performance. In addition, to explore the sodium?ion storage mechanism in hard carbon, this paper used CiteSpace to visually analyze the development process of sodium?ion batteries and reviewed the research progress of performance optimization strategies for hard carbon anode in terms of material design, structure regulation, and function design and interface optimization. Furthermore, the paper summarized and discussed the existing hard carbon sodium storage mechanisms and finally prospected the development direction of the hard carbon anode of sodium?ion batteries.