Liu Ying, Liu Yi, Wu Xiang
School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110870, China.
Chem Rec. 2022 Oct;22(10):e202200088. doi: 10.1002/tcr.202200088. Epub 2022 Jun 2.
Aqueous zinc-ion batteries (AZIBs) with high safety and low cost are considered to be one of the alternatives to Li-ion batteries. In recent years, AZIBs have become a research hotspot, mainly focusing on the research of cathode, anode and electrolyte. Although many efforts have been made in cathode materials, their low specific capacity and poor cycle life remain unsolved. In fact, side reactions of zinc metal anodes, such as dendrite growth, zinc corrosion, and hydrogen evolution reactions (HER), are also the main factors restricting the electrochemical performance of AZIBs. In this review, we first discuss the fundamental of these adverse reactions. Then, the various solution strategies are summarized based on advanced materials and structural design. It includes surface modification and the internal structure optimization of Zn electrodes, the regulation of electrolytes and separators. Finally, we propose the future challenges and development prospects of zinc anode.
具有高安全性和低成本的水系锌离子电池（AZIBs）被认为是锂离子电池的替代方案之一。近年来，AZIBs已成为研究热点，主要集中在正极、负极和电解质的研究上。尽管在正极材料方面已经做出了许多努力，但其低比容量和较差的循环寿命仍然没有得到解决。事实上，锌金属负极的副反应，如枝晶生长、锌腐蚀和析氢反应（HER），也是限制AZIBs电化学性能的主要因素。在这篇综述中，我们首先讨论这些不良反应的基本原理。然后，基于先进材料和结构设计总结了各种解决方案策略。它包括锌电极的表面改性和内部结构优化、电解质和隔膜的调控。最后，我们提出了锌负极未来面临的挑战和发展前景。
