材料科学
阳极
涂层
水溶液
润湿
电偶阳极
化学工程
锌
电解质
枝晶(数学)
图层(电子)
极化(电化学)
电流密度
电化学
无机化学
电极
阴极保护
纳米技术
冶金
复合材料
有机化学
化学
物理化学
几何学
数学
物理
工程类
量子力学
作者
Wangsheng Yuan,Y. Yuan,Junwei Wu,Chaolin You,Yang He,Xingxing Yuan,Qinghong Huang,Lili Liu,Lijun Fu,Yuping Wu
标识
DOI:10.1021/acsami.3c13144
摘要
Side reactions and dendrite growth on the zinc metal anode surface seriously damage the shelf life and calendar life of Zn-based batteries. Here, an Al-complexed artificial interfacial layer is constructed on the Zn surface (denoted as Al-complex@Zn) by a low-cost, facile, and scalable chemical method. The Al-complex interfacial layer improves the wettability of the electrolyte. Meanwhile, the Al-complex layer not only inhibits the side reaction by a physical barrier on the Zn surface but also regulates the zinc-ion flux to realize the uniform deposition of Zn2+. The Zn//Zn symmetric cell with an Al-complex layer has realized an ultralong cycle life of 2400 h and an extremely low polarization voltage of 20 mV (1 mA cm-2, 0.5 mAh cm-2), surpassing those reported in most literature. Furthermore, when an Al-complex@Zn//NaV3O8·1.5H2O (NVO) full cell is assembled, a high capacity retention of 92.5% is achieved over 1000 cycles at a current density of 4 A g-1. This work provides a facile and low-cost strategy on the modification of zinc anode to realize long-cycled aqueous Zn-ion batteries.
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