Related Experiment Video
Updated: Sep 20, 2025

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
Published on: February 13, 2017
Chelation Engineering Revitalizes Iron-Based Redox Flow Batteries
Wendong Yang1, Xue Long1, Hua Jiang1
1Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.
None:
Aqueous iron-based redox flow batteries (IRFBs) are promising candidates for cost-effective, large-scale energy storage. However, their development is hindered by persistent challenges, including hydrogen evolution reaction, dendrite formation, sluggish kinetics, and active species crossover. Chelation engineering offers a transformative approach for overcoming these obstacles. By modifying the coordination environment of metal ions, chelation directly influences the electrochemical properties of metal ions and the thermodynamics of redox reactions, leading to significant improvements in battery efficiency, cycle stability, and system scalability compared to conventional IRFBs. This work highlights the potential of chelation engineering in optimizing IRFB performance and outlines key research priorities to advance the development of chelated IRFBs for grid-scale energy storage applications.
More Related Videos
08:35Extending the Lifespan of Soluble Lead Flow Batteries with a Sodium Acetate Additive
Published on: January 7, 2019
07:55Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
Published on: April 17, 2018
Related Concept Videos
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Batteries and Fuel Cells
Electrolysis
Balancing Redox Equations
Ladder Diagrams: Redox Equilibria
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...
Extraction: Advanced Methods