Issue 15, 2017

A rechargeable Al-ion battery: Al/molten AlCl3–urea/graphite

Abstract

A new Al-ion battery based on an affordable and nontoxic liquid electrolyte made from molten AlCl3/urea was assembled. As the cathode material, natural graphite shows two well-defined discharge voltage plateaus at about 1.9 and 1.5 V with a high specific capacity of 93 mA h g−1 and excellent coulombic efficiency (>99%). The attractive capacity (about 78 mA h g−1) is retained even at a high current density of 1000 mA g−1. Moreover, no faster fading in capacity is observed after 500 cycles. This electrolyte could provide a new system for Al ion batteries, which can be used for large scale energy storage, owing to its cost advantages, high-rate capability and durability.

Graphical abstract: A rechargeable Al-ion battery: Al/molten AlCl3–urea/graphite

Supplementary files

Article information

Article type
Communication
Submitted
10 Dec 2016
Accepted
23 Jan 2017
First published
23 Jan 2017

Chem. Commun., 2017,53, 2331-2334

A rechargeable Al-ion battery: Al/molten AlCl3–urea/graphite

H. Jiao, C. Wang, J. Tu, D. Tian and S. Jiao, Chem. Commun., 2017, 53, 2331 DOI: 10.1039/C6CC09825H

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