Innovative bio-inspired lung-pattern channel design for vanadium-based redox flow energy storage

Jacer Hamrouni; Leila Abdelgader; Chafaa Hamrouni; Abdennaceur Kachouri; Mounir Baccar

doi:10.59400/adecp3739

Innovative bio-inspired lung-pattern channel design for vanadium-based redox flow energy storage

Jacer Hamrouni
Advanced Fluid Dynamics, Energetics and Environment Laboratory, Department of Mechanical Engineering, National School of Engineers of Sfax, University of Sfax, Sfax 3029, Tunisia
Leila Abdelgader
Advanced Department of Computer Sciences, Taif University- Khurma University College, Al-Khurma 2935, Saudi Arabia
Chafaa Hamrouni
Advanced Department of Computer Sciences, Taif University- Khurma University College, Al-Khurma 2935, Saudi Arabia
Abdennaceur Kachouri
AFD2E Laboratory, National Engineering School, Sfax University, Sfax 3029, Tunisia
Mounir Baccar
Advanced Fluid Dynamics, Energetics and Environment Laboratory, Department of Mechanical Engineering, National School of Engineers of Sfax, University of Sfax, Sfax 3029, Tunisia

Article ID: 3739

Keywords: battery efficiency; ion concentration distribution; mass transport; polarization curve; power density; energy storage systems; serpentine flow field; vanadium redox flow battery (VRFB)

Abstract

The all-vanadium redox flow battery (VRFB) is recognized as a leading option for large-capacity energy storage, owing to its eco-friendly nature, operational safety, and structural adaptability. Key determinants of its effectiveness include the configuration of the electrolyte channels and the transport dynamics within the porous electrodes. In this work, a novel bio-inspired lung-patterned flow architecture is proposed and assessed against a traditional serpentine layout using computational simulations. Findings reveal a reduction of approximately 5.34% in charging voltage at a state of charge (SOC) of 0.9 and an enhancement of about 9.77% in discharge voltage at SOC = 0.1, relative to the benchmark design. These performance gains originate from enhanced reactant distribution and transport efficiency. Specifically, at a low SOC of 0.1, the new configuration achieves a 35.6% higher flow uniformity, which effectively minimizes concentration polarization effects. Moreover, it raises the average active ion concentration by roughly 18%, supporting more effective electrochemical conversion. This innovative flow strategy offers meaningful progress toward optimizing VRFB systems for real-world deployment.

Published

2025-12-05

How to Cite

Hamrouni, J., Abdelgader, L., Hamrouni, C., Kachouri, A., & Baccar, M. (2025). Innovative bio-inspired lung-pattern channel design for vanadium-based redox flow energy storage. Advances in Differential Equations and Control Processes, 32(4). https://doi.org/10.59400/adecp3739

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Issue

Vol. 32 No. 4 (2025)

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Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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