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Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells: case studies in high-performance electric vehicles

Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells: case studies in high-performance electric vehicles
Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells: case studies in high-performance electric vehicles
This paper models hybrid energy storage systems (HESSs) composed of ionic liquid Al-ion batteries (ILAIBs) and aqueous Al-ion batteries (AAIBs) for electric vehicle (EV) propulsion. Al-ion batteries are being developed as alternatives to existing battery technologies as Al is an abundant, non-toxic material. Al-ion batteries can be tailored for high power density or high energy density and as such are suitable for HESSs for EVs. In this paper, Al-based chemistries are substituted for one or both of the Li-ion battery (LIB) and supercapacitor (SC) components of the benchmark LIB-SC HESS, and thus the ILAIB-SC, LIB-AAIB, and ILAIB-AAIB HESSs are proposed and modelled with a high-performance EV. The performance of each HESS is compared with that of the conventional LIB-SC HESS, in terms of mass, volume, initial costs, and vehicle lifetime costs. Results show that using the ILAIB as the main energy storage in the HESS can reduce vehicle lifetime costs by 16% as compared with the LIB-based HESSs, but the volume of ILAIB-based HESSs is ten times that of LIB-based HESS. Using the AAIB as the second energy storage can reduce vehicle lifetime costs by 2% but also benefit from 2% less mass and 1% less volume as compared with the SC-based HESSs. Considering both financial costs and feasibility of deployment, the LIB-AAIB HESS is the most viable hybrid combination for high-performance EV propulsion at the present stage.
Aqueous Al-ion battery, Electric vehicle, Hybrid energy storage system, Ionic liquid Al-ion battery
2352-152X
Zhu, Tao
2333524f-f55e-4069-85b9-82d89277efc4
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Lot, Roberto
ceb0ca9c-6211-4051-a7b8-90fd6f0a6d78
Zhu, Tao
2333524f-f55e-4069-85b9-82d89277efc4
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Lot, Roberto
ceb0ca9c-6211-4051-a7b8-90fd6f0a6d78

Zhu, Tao, Wills, Richard and Lot, Roberto (2021) Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells: case studies in high-performance electric vehicles. Journal of Energy Storage, 40, [102777]. (doi:10.1016/j.est.2021.102777).

Record type: Article

Abstract

This paper models hybrid energy storage systems (HESSs) composed of ionic liquid Al-ion batteries (ILAIBs) and aqueous Al-ion batteries (AAIBs) for electric vehicle (EV) propulsion. Al-ion batteries are being developed as alternatives to existing battery technologies as Al is an abundant, non-toxic material. Al-ion batteries can be tailored for high power density or high energy density and as such are suitable for HESSs for EVs. In this paper, Al-based chemistries are substituted for one or both of the Li-ion battery (LIB) and supercapacitor (SC) components of the benchmark LIB-SC HESS, and thus the ILAIB-SC, LIB-AAIB, and ILAIB-AAIB HESSs are proposed and modelled with a high-performance EV. The performance of each HESS is compared with that of the conventional LIB-SC HESS, in terms of mass, volume, initial costs, and vehicle lifetime costs. Results show that using the ILAIB as the main energy storage in the HESS can reduce vehicle lifetime costs by 16% as compared with the LIB-based HESSs, but the volume of ILAIB-based HESSs is ten times that of LIB-based HESS. Using the AAIB as the second energy storage can reduce vehicle lifetime costs by 2% but also benefit from 2% less mass and 1% less volume as compared with the SC-based HESSs. Considering both financial costs and feasibility of deployment, the LIB-AAIB HESS is the most viable hybrid combination for high-performance EV propulsion at the present stage.

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Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells case studies in high-performance electric vehicles - Accepted Manuscript
Restricted to Repository staff only until 5 June 2023.
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Text
Modelling aluminium energy storage systems comprising ionic liquid and aqueous electrolyte cells case studies in high-performance electric vehicles - Accepted Manuscript
Restricted to Repository staff only
Request a copy

More information

Accepted/In Press date: 26 May 2021
e-pub ahead of print date: 5 June 2021
Published date: August 2021
Keywords: Aqueous Al-ion battery, Electric vehicle, Hybrid energy storage system, Ionic liquid Al-ion battery

Identifiers

Local EPrints ID: 449549
URI: http://eprints.soton.ac.uk/id/eprint/449549
ISSN: 2352-152X
PURE UUID: fb9dfc6e-201c-46c1-a7aa-1f98d9ad118b
ORCID for Richard Wills: ORCID iD orcid.org/0000-0002-4805-7589
ORCID for Roberto Lot: ORCID iD orcid.org/0000-0001-5022-5724

Catalogue record

Date deposited: 07 Jun 2021 16:31
Last modified: 26 Nov 2021 03:03

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Contributors

Author: Tao Zhu
Author: Richard Wills ORCID iD
Author: Roberto Lot ORCID iD

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