Issue 11, 2018

Li+ intercalated V2O5·nH2O with enlarged layer spacing and fast ion diffusion as an aqueous zinc-ion battery cathode

Abstract

Aqueous zinc-ion batteries (ZIBs) show conspicuous potential in large-scale energy storage systems due to their cost-effectiveness and environmentally friendliness. Yet developmental cathodes in aqueous ZIBs suffer from sluggish Zn2+ diffusion kinetics. Herein, we introduce an effective strategy by the chemical intercalation of Li+ into the interlayer of V2O5·nH2O, i.e. LixV2O5·nH2O (LVO), with enlarged layer spacing and fast Zn2+ diffusion. As a cathode in aqueous ZIBs with a 2 M ZnSO4 electrolyte, the cotton-like LVO-250 demonstrates high rate capacities and excellent cycling performance (232 mA h g−1 after 500 cycles at 5 A g−1, and 192 mA h g−1 after 1000 cycles at 10 A g−1). The electrochemical reaction kinetics and zinc storage mechanism are investigated in detail.

Graphical abstract: Li+ intercalated V2O5·nH2O with enlarged layer spacing and fast ion diffusion as an aqueous zinc-ion battery cathode

Supplementary files

Article information

Article type
Communication
Submitted
07 Jun 2018
Accepted
28 Aug 2018
First published
28 Aug 2018

Energy Environ. Sci., 2018,11, 3157-3162

Li+ intercalated V2O5·nH2O with enlarged layer spacing and fast ion diffusion as an aqueous zinc-ion battery cathode

Y. Yang, Y. Tang, G. Fang, L. Shan, J. Guo, W. Zhang, C. Wang, L. Wang, J. Zhou and S. Liang, Energy Environ. Sci., 2018, 11, 3157 DOI: 10.1039/C8EE01651H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements