Ultrathin V2O5 nanosheet cathodes: realizing ultrafast reversible lithium storage

Xianhong Rui; Ziyang Lu; Hong Yu; Dan Yang; Huey Hoon Hng; Tuti Mariana Lim; Qingyu Yan

doi:10.1039/C2NR33422D

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Ultrathin V₂O₅nanosheet cathodes: realizing ultrafast reversible lithium storage†

Xianhong Rui,^ab Ziyang Lu,^a Hong Yu,^a Dan Yang,^a Huey Hoon Hng,^a Tuti Mariana Lim*^bc and Qingyu Yan*^ade

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* Corresponding authors

^a School of Materials Science and Engineering, Nanyang Technological University, Singapore
E-mail: alexyan@ntu.edu.sg
Fax: +65 6790 9081
Tel: +65 6790 4583

^b School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
E-mail: tmlim@ntu.edu.sg

^c School of Life Sciences and Chemical Technology, Ngee Ann Polytechnic, Singapore

^d Energy Research Institute, Nanyang Technological University, Singapore

^e TUM CREATE Centre for Electromobility, Nanyang Technological University, Singapore

Abstract

Few-layer V₂O₅ nanosheets with a thickness of 2.1–3.8 nm have been successfully synthesized in this work via a simple and scalable liquid exfoliation technique. The unique nanostructure allows the high-rate transportation of lithium ions and electrons due to very short diffusion paths provided by this ultrathin thickness, resulting in Li-ion cathodes with remarkable energy and power densities.

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Article information

DOI: https://doi.org/10.1039/C2NR33422D
Article type: Communication
Submitted: 01 Nov 2012
Accepted: 29 Nov 2012
First published: 03 Dec 2012

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Nanoscale, 2013,5, 556-560

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Ultrathin V₂O₅ nanosheet cathodes: realizing ultrafast reversible lithium storage

X. Rui, Z. Lu, H. Yu, D. Yang, H. H. Hng, T. M. Lim and Q. Yan, Nanoscale, 2013, 5, 556 DOI: 10.1039/C2NR33422D

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