Issue 23, 2018

Rechargeable aluminum–selenium batteries with high capacity

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

Supplementary files

Article information

Article type
Edge Article
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
Creative Commons BY-NC license

Chem. Sci., 2018,9, 5178-5182

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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