Performance evaluation of a scaled-up membraneless organic-based hybrid flow battery

Yu, Feilin and Zhao, Wenbo and Leung, Puiki and Mohd Rusllim, Mohamed and Wei, Lei and Shah, Akeel A. and Liao, Qiang (2023) Performance evaluation of a scaled-up membraneless organic-based hybrid flow battery. Batteries, 9 (336). pp. 1-15. ISSN 2313-0105. (Published)

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This article presents an evaluation of the performance of a membrane-less organic-based flow battery using low-cost active materials, zinc and benzoquinone, which was scaled up to 1600 cm2, resulting in one of the largest of its type reported in the literature. The charge–discharge cycling of the battery was compared at different sizes and current densities, and its performance was evaluated under various mass transport and operating conditions. The results showed that the round-trip coulombic and voltage efficiencies were over 90% and 85%, respectively, for the laboratory-scale (1 cm2 electrode) cell, but these performances tended to deteriorate with the scaled-up (1600 cm2 electrode) cell due to inadequate mass transfer and sediment coverage of quinone, as well as the formation of a passivation film on the zinc anode. Despite this, the scaled-up batteries exhibited high coulombic and voltage efficiencies of up to 99% and 68.5%, respectively, at a current density of 10 mA cm−2. The capital cost of this system is also estimated to be several times lower than those of commercially available all-vanadium flow batteries and zinc bromide flow batteries for demand charge management applications.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Capital cost analysis; Hybrid flow battery; Laboratory-scale cell; Performance evaluation; Scaled-up cell
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: College of Engineering
Faculty of Electrical and Electronic Engineering Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 21 Aug 2023 03:07
Last Modified: 21 Aug 2023 03:07
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