Li Lihua, Yang Haohao, Peng Hui, Lei Ziqiang, Xu Yuxi
Key Laboratory of Eco-functional, Polymer Materials of the Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, 730070, Lanzhou, Gansu, P. R. China.
Institute of Advanced Technology, Westlake Institute for Advanced Study, School of Engineering, Westlake University, 310024, Hangzhou, Zhejiang, P. R. China.
Chemistry. 2023 Nov 16;29(64):e202302502. doi: 10.1002/chem.202302502. Epub 2023 Oct 5.
The development and utilization of green renewable energy are imperative with the aggravation of environmental pollution and energy crisis. In recent years, the exploration of electrochemical energy storage systems has gradually become a research hotspot in energy. Among them, aqueous zinc-ion batteries (ZIBs) have progressively developed into highly competitive and efficient energy storage devices owing to their inherent safety, natural abundance, and higher theoretical capacity. However, the practical application of ZIBs suffers from the limitation of challenges such as the absence of proper cathode materials and the unavoidable zinc dendrites and side reactions of Zn anode. Covalent organic frameworks (COFs) are an attractive class of electrode materials due to their inherent advantages, like structural designability, high stability, and ordered-open channels, bestowing them with great potential to overcome the problems of ZIBs. In this review, we concentrate on the discussion of designed strategies of COFs applied to ZIBs. Furthermore, the methods of using COFs to solve the challenging problems of cathode development, anode modification, and electrolyte optimization for ZIBs are summarized. Finally, the existing difficulties, solution measures, and prospects of COFs for ZIBs applications are discussed. Our commentary hopes to serve as a valuable reference for developing COFs-based ZIBs.
随着环境污染和能源危机的加剧，绿色可再生能源的开发和利用势在必行。近年来，电化学储能系统的探索逐渐成为能源领域的研究热点。其中，水系锌离子电池（ZIBs）因其固有的安全性、天然丰度和较高的理论容量，已逐渐发展成为极具竞争力的高效储能装置。然而，ZIBs的实际应用受到诸多挑战的限制，如缺乏合适的正极材料、不可避免的锌枝晶以及锌负极的副反应等。共价有机框架（COFs）作为一类极具吸引力的电极材料，因其具有结构可设计性、高稳定性和有序开放通道等固有优势，在克服ZIBs问题方面具有巨大潜力。在本综述中，我们重点讨论了COFs应用于ZIBs的设计策略。此外，总结了利用COFs解决ZIBs正极开发、负极改性和电解质优化等挑战性问题的方法。最后，讨论了COFs在ZIBs应用中存在的困难、解决措施及前景。我们的评论希望能为开发基于COFs的ZIBs提供有价值的参考。
