Mechanistic Insights of Zn2+ Storage in Sodium Vanadates

doi:10.1002/aenm.201801819

	Mechanistic Insights of Zn2+ Storage in Sodium Vanadates
	Guo, Xun ; Fang, Guozhao ; Zhang, Wenyu ; Zhou, Jiang ; Shan, Lutong ; Wang, Liangbing ; Wang, Chao 1; Lin, Tianquan 1,2; Tang, Yan ; Liang, Shuquan
刊名	ADVANCED ENERGY MATERIALS
	2018
卷号	8 期号:27
关键词	aqueous zinc-ion batteries layered structure sodium vanadates tunneled structure zinc storage mechanism
ISSN号	1614-6832
DOI	10.1002/aenm.201801819
英文摘要	Rechargeable aqueous zinc-ion batteries (ZIBs) with high safety and low-cost are highly desirable for grid-scale energy storage, yet the energy storage mechanisms in the current cathode materials are still complicated and unclear. Hence, several sodium vanadates with NaV3O8-type layered structure (e.g., Na5V12O32 and HNaV6O16 center dot 4H(2)O) and beta-Na0.33V2O5-type tunneled structure (e.g., Na0.76V6O15) are constructed and the storage/release behaviors of Zn2+ ions are deeply investigated in these two typical structures. It should be mentioned that the 2D layered Na5V12O32 and HNaV6O16 center dot 4H(2)O with more effective path for Zn2+ diffusion exhibit higher ion diffusion coefficients than that of tunneled Na0.76V6O15. As a result, Na5V12O32 delivers higher capacity than that of Na0.76V6O15, and a long-term cyclic performance up to 2000 cycles at 4.0 A g(-1) in spite of its capacity fading. This work provides a new perspective of Zn2+ storage mechanism in aqueous ZIB systems.
学科主题	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000445444600020
资助机构	X.G. and G.F. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (Grant Nos. 51374255, 51302323, and 51572299), Innovation-Driven Project of Central South University (No. 2018CX004), and Hunan Provincial Innovation Foundation for Postgraduate (Grant No. CX2017B045). ; X.G. and G.F. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (Grant Nos. 51374255, 51302323, and 51572299), Innovation-Driven Project of Central South University (No. 2018CX004), and Hunan Provincial Innovation Foundation for Postgraduate (Grant No. CX2017B045).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24667]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China 2.MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xun,Fang, Guozhao,Zhang, Wenyu,et al. Mechanistic Insights of Zn2+ Storage in Sodium Vanadates[J]. ADVANCED ENERGY MATERIALS,2018,8(27).
APA	Guo, Xun.,Fang, Guozhao.,Zhang, Wenyu.,Zhou, Jiang.,Shan, Lutong.,...&Liang, Shuquan.(2018).Mechanistic Insights of Zn2+ Storage in Sodium Vanadates.ADVANCED ENERGY MATERIALS,8(27).
MLA	Guo, Xun,et al."Mechanistic Insights of Zn2+ Storage in Sodium Vanadates".ADVANCED ENERGY MATERIALS 8.27(2018).