相间
阳极
枝晶(数学)
锌
材料科学
电流密度
磁滞
电偶阳极
沉积(地质)
箔法
化学工程
电化学
电极
金属
分析化学(期刊)
纳米技术
化学
复合材料
冶金
阴极保护
凝聚态物理
物理
物理化学
几何学
数学
遗传学
量子力学
工程类
色谱法
沉积物
生物
古生物学
作者
Zongzhi Tao,Xiaoyue He,Lai Yu,Xinyi Ma,Nazir Ahmad,Genqiang Zhang
标识
DOI:10.1002/smtd.202400463
摘要
Abstract Metal zinc (Zn) is being explored as a possible anode for aqueous zinc ion batteries (AZIBs). However, unrestrained Zn dendrite caused by “tip effect” and chemical corrosion continue to plague the Zn deposition process, limiting the functionality of AZIBs and prohibiting their use at high current densities. This work presents an in situ approach for introducing homogeneous ZnO nanoarrays onto the surface of Zn foil (Zn@ZnO NAs) as a functional protective interphase. On the one hand, well‐distributed ZnO NAs protection layer can regulate the “tip effect” and confine the growth of Zn dendrite. On the other hand, the ZnO NAs layer can enhance the desolvation and diffusion process of Zn 2+ on the surface of anode, attributing to low voltage hysteresis and exceptional electrochemical performance at high current densities. As a result, the Zn@ZnO NAs exhibits a low voltage hysteresis of 50.8 mV with a superb lifespan of 1200 h at a current density of 5 mA cm −2 . Moreover, Zn@ZnO NAs||α‐MnO 2 full‐cell shows a superior cycling performance after 500 cycles at 0.5 A g −1 with a capacity of 216.69 mAh g −1 . This work is expected to provide ideas for designing other reversible zinc anode chemical systems, especially under a high current density.
科研通智能强力驱动
Strongly Powered by AbleSci AI