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An aluminium battery operating with an aqueous electrolyte

An aluminium battery operating with an aqueous electrolyte
An aluminium battery operating with an aqueous electrolyte
Aluminium is an attractive active material for battery systems due to its abundance, low cost, a gravimetric energy density of 2.98 Ah g-1 (c.f. lithium 3.86 Ah g-1) and a volumetric energy density of 8.04 Ah cm-3 (c.f. lithium 2.06 Ah cm-3). An aqueous electrolyte-based aluminium-ion cell is described using TiO2 nanopowder as the negative electrode, CuHCF (copper-hexacyanoferrate) as the positive electrode and an electrolyte consisting of 1 mol dm-3 AlCl3 and 1 mol dm-3 KCl. Voltammetric and galvanostatic analysis have shown that the discharge voltage is circa 1.5 V. Both a single cell and 2-cell battery are demonstrated using 10 cm2 electrodes and 126 mg and 256 mg total active material for the 1-cell and 2-cell batteries respectively. The single cell exhibits an energy density of circa 15 mW h g-1 (combined positive and negative electrode masses) at a power density of 300 mW g-1 with energy efficiency remaining above 70 % for over 1750 cycles. Initial characterisation shows charge storage is due to the presence of Al3+. Cell capacity is circa 10 mA h g-1 and operates with a discharge voltage of circa 1.5 V (efficiency >80 % at 20C charge/discharge rate).
aqueous aluminium ion battery
243–250
Holland, A.
e58ebfdb-e31a-4962-bd40-530cd8ee4cb6
Mckerracher, R. D.
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Cruden, A.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Wills, R. G. A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Holland, A.
e58ebfdb-e31a-4962-bd40-530cd8ee4cb6
Mckerracher, R. D.
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Cruden, A.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Wills, R. G. A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c

Holland, A., Mckerracher, R. D., Cruden, A. and Wills, R. G. A. (2018) An aluminium battery operating with an aqueous electrolyte. Journal of Applied Electrochemistry, 48 (3), 243–250. (doi:10.1007/s10800-018-1154-x).

Record type: Article

Abstract

Aluminium is an attractive active material for battery systems due to its abundance, low cost, a gravimetric energy density of 2.98 Ah g-1 (c.f. lithium 3.86 Ah g-1) and a volumetric energy density of 8.04 Ah cm-3 (c.f. lithium 2.06 Ah cm-3). An aqueous electrolyte-based aluminium-ion cell is described using TiO2 nanopowder as the negative electrode, CuHCF (copper-hexacyanoferrate) as the positive electrode and an electrolyte consisting of 1 mol dm-3 AlCl3 and 1 mol dm-3 KCl. Voltammetric and galvanostatic analysis have shown that the discharge voltage is circa 1.5 V. Both a single cell and 2-cell battery are demonstrated using 10 cm2 electrodes and 126 mg and 256 mg total active material for the 1-cell and 2-cell batteries respectively. The single cell exhibits an energy density of circa 15 mW h g-1 (combined positive and negative electrode masses) at a power density of 300 mW g-1 with energy efficiency remaining above 70 % for over 1750 cycles. Initial characterisation shows charge storage is due to the presence of Al3+. Cell capacity is circa 10 mA h g-1 and operates with a discharge voltage of circa 1.5 V (efficiency >80 % at 20C charge/discharge rate).

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An aluminium battery operating with an aqueous electrolyte - Accepted Manuscript
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More information

Accepted/In Press date: 17 January 2018
e-pub ahead of print date: 2 February 2018
Published date: March 2018
Keywords: aqueous aluminium ion battery

Identifiers

Local EPrints ID: 418551
URI: http://eprints.soton.ac.uk/id/eprint/418551
PURE UUID: 26fd4d79-1042-46c0-9c2a-1ea0e4f7d80f
ORCID for A. Cruden: ORCID iD orcid.org/0000-0003-3236-2535
ORCID for R. G. A. Wills: ORCID iD orcid.org/0000-0002-4805-7589

Catalogue record

Date deposited: 12 Mar 2018 17:30
Last modified: 26 Nov 2021 07:07

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Contributors

Author: A. Holland
Author: A. Cruden ORCID iD
Author: R. G. A. Wills ORCID iD

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