Bifunctional Dynamic Adaptive Interphase Reconfiguration for Zinc Deposition Modulation and Side Reaction Suppression in Aqueous Zinc Ion Batteries

Huirong Wang, Anbin Zhou, Xin Hu, Zhengqiang Hu, Fengling Zhang, Yongxin Huang*, Li Li, Feng Wu, Renjie Chen*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

49 引用 (Scopus)

摘要

Dendrite growth and electrode/electrolyte interface side reactions in aqueous zinc-ion batteries (AZIBs) not only impair the battery lifetime but also pose serious safety concerns for the battery system, hindering its application in large-scale energy storage systems. Herein, by introducing positively charged chlorinated graphene quantum dot (Cl-GQD) additives into the electrolyte, a bifunctional dynamic adaptive interphase is proposed to achieve Zn deposition regulation and side reaction suppression in AZIBs. During the charging process, the positively charged Cl-GQDs are adsorbed onto the Zn surface, acting as an electrostatic shield layer that facilitates smooth Zn deposition. In addition, the relative hydrophobic properties of chlorinated groups also build a hydrophobic protective interface for the Zn anode, mitigating the corrosion of the Zn anode by water molecules. More importantly, the Cl-GQDs are not consumed throughout the cell operation and exhibit a dynamic reconfiguration behavior, which ensures the stability and sustainability of this dynamic adaptive interphase. Consequently, the cells mediated by the dynamic adaptive interphase enable dendrite-free Zn plating/stripping for more than 2000 h. Particularly, even at 45.5% depth of discharge, the modified Zn//LiMn2O4 hybrid cells still retain 86% capacity retention after 100 cycles, confirming the feasibility of this simple approach for application with limited Zn sources.

源语言英语
页(从-至)11946-11956
页数11
期刊ACS Nano
17
12
DOI
出版状态已出版 - 27 6月 2023

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Wang, H., Zhou, A., Hu, X., Hu, Z., Zhang, F., Huang, Y., Li, L., Wu, F., & Chen, R. (2023). Bifunctional Dynamic Adaptive Interphase Reconfiguration for Zinc Deposition Modulation and Side Reaction Suppression in Aqueous Zinc Ion Batteries. ACS Nano, 17(12), 11946-11956. https://doi.org/10.1021/acsnano.3c04155