Performance enhancement through parameter optimization for a rechargeable zinc-air flow battery

Khezri, Ramin; Parnianifard, Amir; Motlagh, Shiva Rezaei; Etesami, Mohammad; Lao-atiman, Woranunt; Abbasi, Ali; Arpornwichanop, Amornchai; Mohamad, Ahmad Azmin; Olaru, Sorin; Kheawhom, Soorathep

doi:10.1016/j.jiec.2022.09.003

Cited by 13 publications

(2 citation statements)

References 49 publications

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“…Moreover, storing energy when it produces more than expected is also necessary. Recently, the tremendous attention of energy storage systems (ESSs) has focused on the expansion of flow batteries [4][5][6][7] . Flow batteries possess several attractive features including long cycle life, flexible design, ease of scaling up, high safety, low capital cost and independence of energy and power components [8][9][10][11] .…”

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Compressed composite carbon felt as a negative electrode for a zinc–iron flow battery

Saupsor

Sangsawang

Kao-ian

et al. 2022

Sci Rep

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Flow batteries possess several attractive features including long cycle life, flexible design, ease of scaling up, and high safety. They are considered an excellent choice for large-scale energy storage. Carbon felt (CF) electrodes are commonly used as porous electrodes in flow batteries. In vanadium flow batteries, both active materials and discharge products are in a liquid phase, thus leaving no trace on the electrode surface. However, zinc-based flow batteries involve zinc deposition/dissolution, structure and configuration of the electrode significantly determine stability and performance of the battery. Herein, fabrication of a compressed composite using CF with polyvinylidene fluoride (PVDF) is investigated in a Zn–Fe flow battery (ZFB). Graphene (G) is successfully introduced in order to improve its electrochemical activity towards zinc reactions on the negative side of the ZFB. A compressed composite CF electrode offers more uniform electric field and lower nucleation overpotential (NOP) of zinc than a pristine CF, resulting in higher zinc plating/stripping efficiency. Batteries with modified electrodes are seen to provide lower overpotential. Particularly, the G-PVDF-CF electrode demonstrates maximum discharge capacity of 39.6 mAh cm−2 with coulombic efficiency and energy efficiency over 96% and 61%, respectively. Finally, results lead to increased efficiency and cycling stability for flow batteries.

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Compressed composite carbon felt as a negative electrode for a zinc–iron flow battery

Saupsor

Sangsawang

Kao-ian

et al. 2022

Sci Rep

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“…The Taguchi method has been used to optimize the parameters and ensure the maximum Zn reduction [16,17], as well as to design parameters for an open-cathode fuel cells [18]. Likewise, an orthogonal array (OA) sampling has been applied in previous work [19] to find optimal working conditions for different input parameters in a rechargeable ZAFC. Each previous investigation has been made to improve the flowing-type ZAFC, which also makes the follow-up research and development clearer about the meaning of each parameter.…”

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Determination of Flowing Electrolyte Parameters in a Zinc-Air Fuel Cell by the Taguchi Method

Huang

Nguyen

Yang

et al. 2023

International Journal of Energy Research

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The flowing electrolyte in a zinc-air fuel cell (ZAFC) can reduce the problem of incomplete reaction caused by the concentration gradient of the electrolyte. In this study, we propose a self-developed ZAFC with a flowing electrolyte system and optimize control parameters. The anode of the ZAFC used Zn particles through which the electrolyte penetrates and combined with a negative pressure pump to allow the potassium hydroxide (KOH) electrolyte to have an effective chemical reaction with the Zn particles during the discharge process. However, the flow rate of the electrolyte is required to match other control parameters, such as operating temperature, KOH concentration, and cell size, to effectively improve the efficiency of ZAFC. Therefore, the Taguchi method is adopted to obtain the optimal reaction parameters and the key factors affecting the discharge efficiency of the cell. The best operation condition is the temperature at 50°C, the KOH concentration of 30% wt, and the electrolyte flow rate of 150ml/min; then, the maximum power obtained from the experimental results is 13.8 W, the maximum current density reaches 699.721 mA/cm2, and the maximum power density is 395.037 mW/cm2. This paper provides valuable insights for the upgrade of ZAFC for future practical applications.

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Anode Corrosion and Mitigation in Metal–Air Batteries—II (Zn–Air)

Khezri,

Motlagh,

Etesami

et al. 2024

Corrosion and Degradation in Fuel Cells, Supercapacitors and Batteries

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Performance enhancement through parameter optimization for a rechargeable zinc-air flow battery

Cited by 13 publications

References 49 publications

Compressed composite carbon felt as a negative electrode for a zinc–iron flow battery

Compressed composite carbon felt as a negative electrode for a zinc–iron flow battery

Determination of Flowing Electrolyte Parameters in a Zinc-Air Fuel Cell by the Taguchi Method

Anode Corrosion and Mitigation in Metal–Air Batteries—II (Zn–Air)

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