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Advanced Graphene Materials for Sodium/Potassium/Aluminum-Ion Batteries
ACS Materials Letters ( IF 11.4 ) Pub Date : 2021-07-16 , DOI: 10.1021/acsmaterialslett.1c00280
Hanyan Xu 1 , Hao Chen 1 , Chao Gao 1
Affiliation  

Lithium-ion technology has led a revolution of portable electronics and is being widely used for large-scale applications such as electric vehicles. However, the main problem associated with the shortage of lithium resource poses a challenge for the traditional lithium-ion prototype and calls for exploration of alternative batteries. The bottleneck of the lithium-ion battery, as such, has prompted the study of sodium-, potassium-, and aluminum-ion batteries, which have the distinct advantage of abundant resources. Graphene materials as electrodes, on the one hand, can actively take part in the electrochemical reactions. On the other hand, they can act as conductive additives to improve kinetics and as buffers to support the structural integrity of the electrodes. In this Review, we discuss the effects of graphene on electrochemical performance of the electrodes in the three battery systems, with emphasis on the general structural design principles and underlying mechanisms which enable the performance improvement. We elucidate the benefits of the graphene materials and highlight the examples of tailored nanostructures that create high-energy-density, fast-charging, and long-lasting performance. We end with an outlook of existing challenges and future opportunities.

中文翻译:

用于钠/钾/铝离子电池的先进石墨烯材料

锂离子技术引领了便携式电子产品的革命,并被广泛用于电动汽车等大规模应用。然而,与锂资源短缺相关的主要问题对传统的锂离子原型提出了挑战,需要探索替代电池。因此,锂离子电池的瓶颈促使钠离子、钾离子和铝离子电池的研究具有明显的资源丰富的优势。石墨烯材料作为电极,一方面可以积极参与电化学反应。另一方面,它们可以作为导电添加剂来改善动力学,并作为缓冲剂来支持电极的结构完整性。在本次审查中,我们讨论了石墨烯对三种电池系统中电极电化学性能的影响,重点是一般结构设计原则和能够提高性能的潜在机制。我们阐明了石墨烯材料的优点,并重点介绍了可产生高能量密度、快速充电和持久性能的定制纳米结构的示例。我们以对现有挑战和未来机遇的展望结束。
更新日期:2021-08-02
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