A mathematical model for the soluble lead-acid flow battery
A mathematical model for the soluble lead-acid flow battery
The soluble lead-acid battery is a redox flow cell that uses a single reservoir to store the electrolyte and does not require a microporous separator or membrane, allowing a simpler design and a substantial reduction in cost. In this paper, a transient model for a reversible, lead-acid flow battery incorporating mass and charge transport and surface electrode reactions is developed. The charge–discharge behavior is complicated by the formation and subsequent oxidation of a complex oxide layer on the positive electrode surface, which is accounted for in the model. The full charge/discharge behavior over two cycles is simulated for many cases. Experiments measuring the cell voltage during repeated charge–discharge cycles are described, and the simulation results are compared to the laboratory data, demonstrating good agreement. The model is then employed to investigate the effects of variations in the current density on the performance of the battery.
charge exchange, current density, electrodes, electrolytes, lead acid batteries, mass transfer, oxidation
A589-A599
Shah, Akeel A.
ed7baab6-105f-4c99-969b-a8038fa87aaf
Li, Xiaohong
ea8135d4-1bd7-4771-85cd-eb8f2a264654
Wills, Richard G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Walsh, Frank C.
309528e7-062e-439b-af40-9309bc91efb2
7 April 2010
Shah, Akeel A.
ed7baab6-105f-4c99-969b-a8038fa87aaf
Li, Xiaohong
ea8135d4-1bd7-4771-85cd-eb8f2a264654
Wills, Richard G.A.
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Walsh, Frank C.
309528e7-062e-439b-af40-9309bc91efb2
Shah, Akeel A., Li, Xiaohong, Wills, Richard G.A. and Walsh, Frank C.
(2010)
A mathematical model for the soluble lead-acid flow battery.
Journal of the Electrochemical Society, 157 (5), .
(doi:10.1149/1.3328520).
Abstract
The soluble lead-acid battery is a redox flow cell that uses a single reservoir to store the electrolyte and does not require a microporous separator or membrane, allowing a simpler design and a substantial reduction in cost. In this paper, a transient model for a reversible, lead-acid flow battery incorporating mass and charge transport and surface electrode reactions is developed. The charge–discharge behavior is complicated by the formation and subsequent oxidation of a complex oxide layer on the positive electrode surface, which is accounted for in the model. The full charge/discharge behavior over two cycles is simulated for many cases. Experiments measuring the cell voltage during repeated charge–discharge cycles are described, and the simulation results are compared to the laboratory data, demonstrating good agreement. The model is then employed to investigate the effects of variations in the current density on the performance of the battery.
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Published date: 7 April 2010
Keywords:
charge exchange, current density, electrodes, electrolytes, lead acid batteries, mass transfer, oxidation
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Local EPrints ID: 154993
URI: http://eprints.soton.ac.uk/id/eprint/154993
ISSN: 0013-4651
PURE UUID: 0fe1402b-43f9-4d08-964f-2d0de234a5f9
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Date deposited: 26 May 2010 15:30
Last modified: 14 Mar 2024 02:48
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Author:
Akeel A. Shah
Author:
Xiaohong Li
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