Brookite phase vanadium dioxide (B) with nanosheet structure for superior rate capability aqueous Zn-ion batteries

doi:10.1016/j.jelechem.2022.116039

	Brookite phase vanadium dioxide (B) with nanosheet structure for superior rate capability aqueous Zn-ion batteries
	Bai, Meng-Xin 1; Gao, Jian-Fei 1; He, Zheng-Hua 1; Hou, Jing-Feng 1; Kong, Ling-Bin 1,2
刊名	Journal of Electroanalytical Chemistry
	2022-02-15
卷号	907
关键词	Ions Secondary batteries Vanadium dioxide Zinc Electrochemical performance High safety Ion batteries Low-costs Nanosheet structure Rate capabilities Rate performance Zinc ions Zinc-ion battery Zn ions
ISSN号	1572-6657
DOI	10.1016/j.jelechem.2022.116039
英文摘要	Vanadium dioxide is widely used as a low-cost, high-safety cathode material for aqueous zinc ion batteries because of its tunnel structure that facilitates the intercalates/de-intercalates of Zn2+. However, it has been a challenge to improve the rate performance of vanadium dioxide and its cycling stability at high current densities. Here, we report VO2(B) nanoflakes with petal-shaped folds at the top. Combine with a higher pseudocapacitance contribution and part of diffusion control, the VO2(B) led to higher electrochemical activity, quicker electron transfer kinetics and better electronic conductivity. The VO2(B) discovers a considerable capacity of 301.7 mA h g−1 at 1 A g−1, an impressive rate performance of 248.4 mA h g−1 after 1000 cycles at 5 A g−1,and 89.0 mA h g−1 at the current density of 50 A g−1. More surprisingly, the VO2(B) can keep 201.3 mA h g−1 after 2000 cycles at 10 A g−1, and obtain 101.4% high capacity retention. This method effectively improves the rate performance and long-cycle stability of vanadium dioxide, and also provides ideas for improving the performance of other cathode materials for aqueous zinc ion batteries. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158020]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Bai, Meng-Xin,Gao, Jian-Fei,He, Zheng-Hua,et al. Brookite phase vanadium dioxide (B) with nanosheet structure for superior rate capability aqueous Zn-ion batteries[J]. Journal of Electroanalytical Chemistry,2022,907.
APA	Bai, Meng-Xin,Gao, Jian-Fei,He, Zheng-Hua,Hou, Jing-Feng,&Kong, Ling-Bin.(2022).Brookite phase vanadium dioxide (B) with nanosheet structure for superior rate capability aqueous Zn-ion batteries.Journal of Electroanalytical Chemistry,907.
MLA	Bai, Meng-Xin,et al."Brookite phase vanadium dioxide (B) with nanosheet structure for superior rate capability aqueous Zn-ion batteries".Journal of Electroanalytical Chemistry 907(2022).