Charge-tuning mediated rapid kinetics of zinc ions in aqueous Zn-ion battery
Vanadium oxides are considered to be one of the most promising cathode materials for rechargeable aqueous zinc-ion batteries. However, the sluggish kinetics of zinc-ion intercalation and unstable layered structure limit its further development. Herein, we use the interlayer charge-tuning strategy to fabricate a KBaVO·2.2HO nanowire by Ba and K dual pre-intercalation. The dual ions intercalated cathode enables a discharge capacity of up to 563 mAh g at 0.1 A g and retains 98.5% capacity after 10,000 cycles at 5 A g. Experiments and theoretical calculations jointly reveal that charge-tuning reduces the electrostatic repulsion between zinc-ions and the host matrix, which realizes the rapid diffusion kinetics of zinc-ions and restrains the cathode dissolution effectively. Benefiting from its excellent flexibility and weather resistance, KBaVO·2.2HO nanowire-based Zn-ion battery also shows robust application in wearable electronic devices. The charge-tuning strategy provides new ideas to the design of high-performance cathode materials for aqueous Zn-ion batteries.
National Natural Science Foundation of China["61761047","41876055"] ; Yunnan University's Research Innovation Fund for Graduate Students[KC-22222464]
|WOS Research Area|
Engineering, Environmental ; Engineering, Chemical
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Biomedical Engineering|
1.National Center for International Research on Photoelectric and Energy Materials,School of Materials and Energy,Yunnan University,Kunming,6500504,China
2.Department of Biomedical Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies,Yunnan University,Kunming,6500504,China
|Corresponding Author Affilication||Department of Biomedical Engineering|
Xiao，Yawei,Ren，Jie,Li，Mengyao,et al. Charge-tuning mediated rapid kinetics of zinc ions in aqueous Zn-ion battery[J]. Chemical Engineering Journal,2023,474.
Xiao，Yawei,Ren，Jie,Li，Mengyao,Xiao，Kai,&Wang，Yude.(2023).Charge-tuning mediated rapid kinetics of zinc ions in aqueous Zn-ion battery.Chemical Engineering Journal,474.
Xiao，Yawei,et al."Charge-tuning mediated rapid kinetics of zinc ions in aqueous Zn-ion battery".Chemical Engineering Journal 474(2023).
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