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Issue 35, 2018
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A rechargeable aluminum-ion battery based on a VS2 nanosheet cathode

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Abstract

As a typical member of transition-metal dichalcogenides (TMDs), VS2 has been evaluated as the aluminum-ion battery cathode for the first time. To further improve their stability and conductivity, the as-prepared VS2 nanosheets are modified with graphene (denoted as G-VS2). And the G-VS2 electrode delivers a high initial discharge capacity of 186 mA h gāˆ’1 at 100 mA gāˆ’1 with almost 100% coulombic efficiency after 50 cycles. Furthermore, an explicit intercalation mechanism of Al into G-VS2 has been investigated by in/ex situ XRD, ex situ Raman and TEM spectroscopy. And the G-VS2 composite proves to be an impressive cathode material for aluminum-ion batteries (AIBs). This work might put forward the application of TMDs in AIBs.

Graphical abstract: A rechargeable aluminum-ion battery based on a VS2 nanosheet cathode

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Publication details

The article was received on 27 Jul 2018, accepted on 21 Aug 2018 and first published on 22 Aug 2018


Article type: Paper
DOI: 10.1039/C8CP04772C
Citation: Phys. Chem. Chem. Phys., 2018,20, 22563-22568
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    A rechargeable aluminum-ion battery based on a VS2 nanosheet cathode

    L. Wu, R. Sun, F. Xiong, C. Pei, K. Han, C. Peng, Y. Fan, W. Yang, Q. An and L. Mai, Phys. Chem. Chem. Phys., 2018, 20, 22563
    DOI: 10.1039/C8CP04772C

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