Materials Science and Engineering, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology (KAUST), 23955-6900, Thuwal, Saudi Arabia.
Adv Mater. 2023 Feb;35(6):e2208171. doi: 10.1002/adma.202208171. Epub 2022 Dec 18.
Metal-based anodes (Li, Zn, etc.) are regarded as promising solutions for next-generation advanced batteries due to their high theoretical specific capacities. However, most of these metal anodes suffer from dendrite growth, which severely restricts their practical applications. Recently, epitaxial anode metal deposition by choosing a suitable substrate has received tremendous attention as an effective strategy to suppress dendrites. However, the epitaxial relationship between plated metal and the substrate has been a subject of debate. Herein, large-area, mono-orientated 2D material (MoS ) is used, for the first time, to electrodeposit truly epitaxial Zn anodes. The continuous (without edges) mono-orientated MoS films are shown to be an effective strategy for suppressing metal dendrites. In addition, the epitaxial nature of the electrodeposited Zn anode is proven by pole figure analysis, which provides the first demonstration of truly epitaxial Zn anode growth over large area as metal anode protection strategy through epitaxy.
基于金属的阳极（如 Li、Zn 等）由于其高的理论比容量而被认为是下一代先进电池的有前途的解决方案。然而，这些金属阳极中的大多数都存在枝晶生长的问题，这严重限制了它们的实际应用。最近，通过选择合适的衬底进行外延阳极金属沉积作为抑制枝晶的有效策略受到了极大的关注。然而，电镀金属与衬底之间的外延关系一直是一个有争议的问题。在此，首次使用大面积、单取向二维材料 (MoS ) 来电沉积真正的外延 Zn 阳极。连续的（无边缘）单取向 MoS 薄膜被证明是抑制金属枝晶的有效策略。此外，通过极图分析证明了电镀 Zn 阳极的外延性质，这首次通过外延提供了作为金属阳极保护策略的大面积真正外延 Zn 阳极生长的例证。
