石墨炔在水系离子电池中的研究进展

A review of graphdiyne in aqueous ion batteries

  • 摘要: 石墨炔(Graphdiyne,GDY)是一种全新的炭材料,具有特殊的炭杂化排列方式、独特的化学性质和电子结构以及独特的孔隙结构等优点,在电化学储能领域具有良好的应用前景。新兴的水系离子电池具有低成本和高安全性等优点,然而,高性能电极材料的开发、新型隔膜体系的设计以及稳定界面的策略等仍是水系离子电池面临的主要挑战。石墨炔在负极保护、正极包覆、隔膜设计以及稳定界面pH值等方面,可以改善离子传输与界面沉积行为、电解液不稳定等问题。特别是石墨炔自下而上的分子结构设计策略使其具有易修饰、掺杂的特点,改性的石墨炔类似物具有更加优异的性能,拓宽了其在水系离子电池中的应用。本文系统综述了石墨炔的结构与性质以及合成方法,特别对石墨炔在水系离子电池中的研究进行了总结。此外,对石墨炔在水系离子电池中应用时仍存在的问题与挑战进行了探讨,对石墨炔在水系离子电池中的发展进行了展望。

     

    Abstract: Graphdiyne is a novel carbon material with a special carbon hybrid arrangement, unique chemical and electronic structure and numerous pores that has promising applications in electrochemical energy storage. Emerging aqueous ion batteries have advantages of low cost and high safety, but the development of high-performance electrode materials, the design of new membrane systems and ways of stabilizing the interface remain the main challenges in their manufacture. With its unique porous structure and excellent electrochemical properties, graphdiyne can improve ion transport, interface deposition behavior and electrolyte instability in the aspects of anode protection, cathode cladding, membrane design and stabilizing the pH value of the interface. A bottom-up molecular structural design strategy makes graphdiyne easy to modify and dope, improving the properties of its analogues and thus expanding their applications in aqueous ion batteries. We systematically summarize the structure, properties, and synthesis methods of graphdiyne, and summarize the research of graphdiyne in aqueous ion batteries. A comprehensive evaluation of the existing problems and challenges of the use of graphdiyne in aqueous ion batteries is given, and future trends and developments are suggested.

     

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