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Issue 23, 2018
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Rechargeable aluminum–selenium batteries with high capacity

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Abstract

Rechargeable aluminum (Al) batteries are emerging as a promising post lithium-ion battery technology. Herein, we demonstrate a conceptually new design of rechargeable aluminum–selenium (Al–Se) batteries by understanding the selenium chemistry and controlling the electrode reaction. The Al–Se battery consists of a composite cathode including selenium nanowires and mesoporous carbon (CMK-3) nanorods, an Al metal anode and chloroaluminate ionic liquid electrolyte. The working mechanism of the Al–Se battery is the reversible redox reaction of the Se2Cl2/Se pair confined in the mesopores of CMK-3 nanorods. Al–Se batteries deliver a high reversible capacity of 178 mA h g−1 (by Se mass), high discharge voltages (mainly above 1.5 V), and good cycling/rate performances.

Graphical abstract: Rechargeable aluminum–selenium batteries with high capacity

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Supplementary files

Article information


Submitted
05 Mar 2018
Accepted
16 May 2018
First published
17 May 2018

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2018,9, 5178-5182
Article type
Edge Article

Rechargeable aluminum–selenium batteries with high capacity

X. Huang, Y. Liu, C. Liu, J. Zhang, O. Noonan and C. Yu, Chem. Sci., 2018, 9, 5178
DOI: 10.1039/C8SC01054D

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    [Original citation] - Published by The Royal Society of Chemistry.

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