材料科学
过电位
阳极
电镀(地质)
化学工程
阴极
金属
吸附
涂层
锌
沉积(地质)
纳米技术
电化学
冶金
电极
地质学
工程类
物理化学
生物
古生物学
有机化学
化学
地球物理学
沉积物
作者
Wen Liu,Qiwen Zhao,Huaming Yu,Han Wang,Shaozhen Huang,Liangjun Zhou,Weifeng Wei,Qichun Zhang,Xiaobo Ji,Yuejiao Chen,Yuejiao Chen
标识
DOI:10.1002/adfm.202302661
摘要
Abstract Aqueous zinc batteries usher in a renaissance due to their intrinsic security and cost effectiveness, bespeaking vast application foreground for large‐scale energy storage system. However, uncontrolled dendrite growth along with hydrogen evolution severely restricts its reversibility and stability for practical application. Herein, the surface of Zn metal is reconstructed with metallic particles (In, Sn, In 0.2 Sn 0.8 ) to diminish surface defects and regulate Zn deposition behavior. The alloyed In–Sn greatly activates the Zn surface for lower Zn adsorption energy barrier to expedite plating kinetics and confine Zn aggregation. Dense and uniform deposition of Zn on the reconstructed surface significantly prevents the Zn substrate from dendrites growth for catastrophic damage. Meanwhile, alloy layer embodies high hydrogen evolution overpotential, ensuring high plating and stripping efficiency for Zn anode. Consequently, In 0.2 Sn 0.8 reconstructed surface realizes long‐term lifespan up to 1800 h with low polarization (12 mV) at the condition of 1 mA cm −2 and 1 mAh cm −2 . When paired with sodium vanadate (NVO) cathode, the full cell steady operates for a high‐capacity retention of 94.0% after 5000 cycles at 5 A g −1 . This study provides new insights into the surface‐defects dependent Zn deposition process and offers a guide for constructing stable surface for dendrite‐free Zn growth.
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