阳极
锌
成核
电解质
电偶阳极
材料科学
水溶液
电池(电)
化学工程
电化学
储能
扩散
枝晶(数学)
金属
纳米技术
电极
化学
冶金
阴极保护
物理化学
功率(物理)
几何学
量子力学
有机化学
工程类
物理
热力学
数学
作者
Chen‐Liang Xu,Jinhong Li,Feng Yihu,Boheng Yuan,Jiawei Liu,Mengting Liu,Fei Shen,Pengfei Wang,Xiaogang Han
标识
DOI:10.1016/j.jpowsour.2022.232044
摘要
Aqueous Zn-ion batteries have gradually become a suitable choice for large-scale energy storage systems owing to their safety and lower cost. However, Zn metal anodes typically suffer from uneven electrodeposition and zinc dendrite formation, which restricts Zn-ion batteries from being used in further applications. To mitigate this problem, a simple and quick chemical surface modification is employed to construct a multifunctional hybrid interface consisting of ZnF2 and Sn on the surface of the Zn metal anode. ZnF2 show a low diffusion energy barrier for Zn2+, effectively shield the direct corrosive reaction from the aqueous electrolyte, and simultaneously increase the hydrogen evolution potential of the Zn electrode. Furthermore, the Sn particles provide a large number of nucleation sites and charge centers, avoiding the direct growth of dendrites. The interface-modified Zn anode achieve stable cycles of 700 h and 500 h at high current densities of 5 and 10 mA/cm2, respectively, while the assembled [email protected]2–Sn||V2O5 full battery achieve over 400 stable cycles at 1 A/g. This work uncover the internal mechanism of inhibiting Zn dendrites by the multifunctional interface, providing a means for stabilizing the Zn anode under practical conditions.
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