A Mathematical Model for a Soluble Lead-Acid Battery

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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 substantical reduction in cost. In this paper, a two-dimensional transient model for a soluble lead-acid flow battery is developed. The model based on a comprehensive description of mass, charge, energy and momentum transport and conservation, and is combined with a global kinetic model for reactions involving lead species. The influences of the electrode gap, electrode shape, applied current density, operating temperature; inlet electrolyte velocity and initial concentration of species on the charge/discharge behavior of the cell are investigated. The results show that compared with the plate eleoctrode, the camber electrode makes the voltage during charging risen remarkably. Among various conditions that affect the performance of the soluble lead-acid flow battery, operating temperature and current density may be the keys in optimizing a lead-acid flow battery.

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	Articles by authors
	Peng Cheng
	Huang Chengde
	Wang Yuxin

Keywords： soluble lead-acid battery； redox flow； two-dimensional transient； global kinetic

Received 2016-12-20;

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Peng Cheng, Huang Chengde, Wang Yuxin.A Mathematical Model for a Soluble Lead-Acid Battery[J] Chemcial Industry and Engineering, 2018,V35(5): 62-71

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