Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147557
Title: Bronze-type vanadium dioxide holey nanobelts as high performing cathode material for aqueous aluminium-ion battery
Authors: Cai, Yi
Kumar, Sonal
Chua, Rodney
Verma, Vivek
Yuan, Du
Kou, Zongkui
Ren, Hao
Arora, Hemal
Srinivasan, Madhavi
Keywords: Engineering::Materials
Issue Date: 2020
Source: Cai, Y., Kumar, S., Chua, R., Verma, V., Yuan, D., Kou, Z., Ren, H., Arora, H. & Srinivasan, M. (2020). Bronze-type vanadium dioxide holey nanobelts as high performing cathode material for aqueous aluminium-ion battery. Journal of Materials Chemistry A, 8(25), 12716-12722. https://dx.doi.org/10.1039/D0TA03986A
Project: NRFI2017-08/NRF2016NRF-NRFI001-22
Journal: Journal of Materials Chemistry A 
Abstract: Aqueous rechargeable aluminium-ion batteries (AIBs) are promising post lithium-ion battery candidates. However, the capacity and cycling stability are limited by the cathode materials, hindering their widespread application. Herein, bronze-type vanadium dioxide (VO2–B) holey nanobelts have been designed as the cathode material to improve both the capacity and cycling stability for high-performance aqueous AIBs. Benefiting from the unique shear structure and two-dimensional holey nanobelt morphology, the VO2–B electrode delivers a superior specific capacity of up to 234 mA h g−1 at 150 mA g−1 and exhibits a high capacity retention of 77.2% over 1000 cycles at 1 A g−1, which are among the best cathode performances reported for aqueous AIBs. Moreover, a combination of electro-kinetic analysis and ex situ structural evolution characterization experiments reveals the reaction storage mechanism underlying the superior performance. Specifically, proton and Al3+ ions can reversibly co-intercalate/de-intercalate into/from VO2–B. The integration of shear structure and unique holey nanobelts may open the route to the design of high-performance cathodes for multi-valence ion batteries.
URI: https://hdl.handle.net/10356/147557
ISSN: 2050-7488
DOI: 10.1039/D0TA03986A
Schools: School of Materials Science and Engineering 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2020 The Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry A and is made available with permission of The Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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