Zincophilic Sn sites induced the local ion enrichment for compact and homogenous growth of Zn biscuits in long-life Zn metal batteries

文献情報

出版日 2024-01-03

DOI 10.1039/D3TA06613D

インパクトファクター 12.732

著者

Tiancun Liu, Yi Xu, Haoyan Fang, Ling Chen, Jiadi Ying, Min Guo, Yeqing Wang, Qi Shen, Xusheng Wang, Yong Wang, Zhixin Yu

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要旨

The inevitable formation of zinc (Zn) dendrites and side reactions impede the practical applications of long-life and stable Zn metal batteries (ZMBs). Herein, a self-supporting and zincophilic skeleton, reduced copper foam containing Sn sites (R-CF@Sn), is constructed to induce dense and homogenous Zn growth for enhancing the performance of Zn metal anode and ZMBs. A facile and effective decoration of functional Sn coating not only exhibited a high Zn ion adsorption energy to promote the uniform distribution and local enrichment, but also guided the subsequent stable Zn nucleation and dense biscuit-like Zn metal development, which was substantiated by microscopy images. Due to the positive construction of zincophilic Sn layer and rough skeleton surface, the electrolyte wettability of R-CF@Sn was greatly improved compared to that of bare copper substrate. When applied for evaluating the coulombic efficiency (CE) performance, the R-CF@Sn skeleton showed a low nucleation overpotential of 6.6 mV and maintained a high average CE value of 98% for 400 cycles at 5 mA cm−2. Moreover, a symmetric cell with R-CF@Sn plating with Zn metal of 3 mA h cm−2 could deliver prolonged lifespans of 1600 h (1 mA cm−2) and 700 h (5 mA cm−2) at a plating/stripping capacity of 1 mA h cm−2. The superior specific capacity delivery of the full cell with an MnO2 cathode further indicates the positive effect of stabilizing the Zn metal anode possessed by the R-CF@Sn skeleton.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment