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TiO2 nanopowder as a high rate, long cycle life electrode in aqueous aluminium electrolyte

TiO2 nanopowder as a high rate, long cycle life electrode in aqueous aluminium electrolyte
TiO2 nanopowder as a high rate, long cycle life electrode in aqueous aluminium electrolyte

TiO2 nanopowders have been used to manufacture negative electrodes and their cycle life, efficiency and rate capability investigated for use in aqueous Al-ion cells. A high efficiency of 99% was measured when an electrode was cycled at 7.2 A g−1 (360C) in 1 mol dm−3 AlCl3/1 mol dm−3 KCl and a discharge capacity of 20 mA h g−1 could be maintained for nearly 4000 cycles at 100 C. Also explored is the low coulombic efficiency seen for TiO2 in previous aqueous Al-ion publications, while mass loading and electrolyte O2 content affect coulombic efficiency. The high coulombic efficiency and charge/discharge current make these electrodes suitable for use in charge storage devices targeted at high power/low capacity applications, such as capturing bursts of power during regenerative breaking.

Aluminium ion battery, TiO
208-213
Holland, A. W.
e58ebfdb-e31a-4962-bd40-530cd8ee4cb6
McKerracher, R.
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Cruden, A.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Wills, R. G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Holland, A. W.
e58ebfdb-e31a-4962-bd40-530cd8ee4cb6
McKerracher, R.
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Cruden, A.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Wills, R. G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c

Holland, A. W., McKerracher, R., Cruden, A. and Wills, R. G.A. (2018) TiO2 nanopowder as a high rate, long cycle life electrode in aqueous aluminium electrolyte. Materials Today Energy, 10, 208-213. (doi:10.1016/j.mtener.2018.09.009).

Record type: Article

Abstract

TiO2 nanopowders have been used to manufacture negative electrodes and their cycle life, efficiency and rate capability investigated for use in aqueous Al-ion cells. A high efficiency of 99% was measured when an electrode was cycled at 7.2 A g−1 (360C) in 1 mol dm−3 AlCl3/1 mol dm−3 KCl and a discharge capacity of 20 mA h g−1 could be maintained for nearly 4000 cycles at 100 C. Also explored is the low coulombic efficiency seen for TiO2 in previous aqueous Al-ion publications, while mass loading and electrolyte O2 content affect coulombic efficiency. The high coulombic efficiency and charge/discharge current make these electrodes suitable for use in charge storage devices targeted at high power/low capacity applications, such as capturing bursts of power during regenerative breaking.

Text
Commercial TiO2 as a high rate and long cycle life electrode MaterialToday_Review - Accepted Manuscript
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More information

Accepted/In Press date: 18 September 2018
e-pub ahead of print date: 5 October 2018
Published date: 1 December 2018
Keywords: Aluminium ion battery, TiO

Identifiers

Local EPrints ID: 425959
URI: http://eprints.soton.ac.uk/id/eprint/425959
PURE UUID: b59b712c-1d6a-4804-9a4f-d9edeaebf548
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: 07 Nov 2018 17:30
Last modified: 18 Feb 2021 17:19

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