阳极
法拉第效率
阴极
材料科学
电解质
锌
化学工程
剥离(纤维)
水溶液
电极
电池(电)
电化学
电偶阳极
电镀(地质)
复合材料
化学
冶金
阴极保护
物理
功率(物理)
物理化学
量子力学
地球物理学
地质学
工程类
作者
Huiqin Zhou,Wang Zhang,Long Wang,Xu–Lei Sui,Panpan Wang,Zhenbo Wang
标识
DOI:10.1016/j.cej.2023.145689
摘要
Aqueous zinc-ion batteries have been highly valued for their high safety and environmental friendliness. However, the notorious Zn dendrite growth derived from uneven distribution of electric fields and side reaction at the electrolyte–anode interface critically limited the lifespan of aqueous zinc-ion batteries. Herein, uniform zinc deposition were achieved by construction of interface film with prussian blue 3D open framework, which provide highly zincophilic channel with well-regulated Zn2+ flow tailored on Zn anode surface. The decorated Zn electrode displayed an ultralong plating/stripping cycling life over 4800 h with an ultralow voltage hysteresis (30 mV) at current density of 0.25 mA cm−2. Moreover, the modified Zn||Cu half cell delivers high average coulombic efficiency up to 99.2% for more than 1000 cycles at 0.5 mA cm−2. When coupled with MnO2 cathode, the full cells demonstrated significantly improved cycling stability with capacity retention of 85.1% after 200 cycles. The facile construction strategy of interface layer with well-regulated Zn2+ flow developed in this work provided promising perspective for the design of long term aqueous Zn battery.
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