@article{Tao2023, 
author = {Feng Tao and Kaijia Feng and Yong Liu and Jiangzhuo Ren and Yi Xiong and Chengbo Li and Fengzhang Ren},
title = {Suppressing interfacial side reactions of zinc metal anode via isolation effect toward high-performance aqueous zinc-ion batteries},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {5},
pages = {6789-6797},
keywords = {zinc metal anode, Ta2O5 coating, isolation effect, interfacial side reactions, electrochemical performance},
url = {https://www.sciopen.com/article/10.1007/s12274-022-5270-x},
doi = {10.1007/s12274-022-5270-x},
abstract = {Aqueous zinc (Zn)-ion batteries (AZIBs) are one of the most promising large-scale energy storage devices because of the excellent features of zinc metal anodes, including high theoretical capacity (5,855 mAh·cm–3 and 820 mAh·g−1), high safety, and natural abundance. Nevertheless, the large-scale applications of AZIBs are mainly limited by the severe interfacial side reactions of zinc metal anodes, which results in low plating/stripping Coulombic efficiency and poor cycling stability. To address this issue, we report an artificial Ta2O5 protective layer on zinc foil (Ta2O5@Zn) for suppressing side reactions during Zn deposition/stripping. The results of density functional theory calculation and experiments indicate that Ta2O5@Zn anode can inhibit the side reactions between the electrolyte and zinc anode through the isolation effect. Benefiting from this advantage, the symmetric cells with Ta2O5@Zn anode delivered an ultralong lifespan of 3,000 h with a low overpotential at 0.25 mA·cm−2 for 0.05 mAh·cm−2. Furthermore, the full cells consisting of Ta2O5@Zn anode and MnO2 or NH4V4O10 cathode all present outstanding electrochemical performance, indicating its high reliability in practical applications. This strategy brings new opportunities for the future development of rechargeable AZIBs.}
}