Products Cited in Publications Worldwide Highly soluble and stable Rhein as an anolyte for aqueous redox flow batteries

Highly soluble and stable Rhein as an anolyte for aqueous redox flow batteries

Li, Haochen; Du, Zhilin; Feng, Dawei; Lee, Wonmi

DOI:

Abstract

Aqueous organic redox fow batteries (AORFBs) have been extensively studied for cost-effective and high energy-density large-scale energy storage applications. In this study, , an derivative containing two hydroxyl and one carboxyl group, was newly introduced as a redox-active material for the anolyte. demonstrated moderate solubility (0.42 M in KOH), a low redox potential (− 0.8 V), and a high diffusion coeffcient (1.46 × 10−6 cm2 s−1), making it a promising candidate for redox fow batteries. A full cell test using 0.1 M and ferro/ferricyanide achieved a capacity of 5.07 Ah L −1, a high capacity utilization of 94.7%, and an energy effciency of 89.9% at the 100th cycle, with excellent capacity retention of 99.7% after 100 cycles. Furthermore, when using 0.4 M , the full cell delivered a high capacity of 18.9 Ah L−1. The high capacity and exceptional cycling stability of without any modifcation in full cell performance highlights its potential as a promising organic redox-active material for the development of cost-effective and long-duration energy storage systems.

Keywords

Organic ; energy storage ; lifecycle ; renewable ; sustainability

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Rhein

A105483478-43-398+%

Rhein

18.0/1g

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