DataVXACS Applied Energy MaterialsPaper
journal article·2022-09-26

Highly Water-Soluble 6-Quinoxalinecarboxylic Acid for High-Voltage Aqueous Organic Redox Flow Batteries

Caixing Wang, Yanrong Wang, Meng Tao, Bo Yu, Kaiqiang Zhang, Jie Wei, Yuzhu Liu, Pengbo Zhang, Guochun Ding, Zuoxiu Tie, Jianyu Cao, Zhong Jin

ACS Applied Energy Materials· Volume 5· Issue 9
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Source abstract

Abstract

Aqueous organic redox flow batteries (AORFBs) are promising for grid-scale energy storage, but the aqueous solubility and stability of redox-active organic molecules are usually low. Herein, we report scalable and convenient synthesis of 6-quinoxalinecarboxylic acid (QCA) anolyte material with high solubility (5.5 M) and ultralow redox potential (−0.79 V vs SHE). When coupling with K4Fe(CN)6 catholyte, the QCA||K4Fe(CN)6 AORFBs show a cell voltage of 1.28 V, a power density of 199 mW cm–2, and a capacity retention of 99.9% cycle–1. This work highlights the reasonable construction of redox-active organic species to develop advanced AORFBs toward large-scale energy storage applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced battery technologies research · Perovskite Materials and Applications · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China

College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225000, China

School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China

Suzhou Tierui New Energy Technology Co. Ltd., Suzhou, Jiangsu 215228, China

Nanjing Tieming Energy Technology Co. Ltd., Nanjing, Jiangsu 210093, China

Funding

Ministry of Science and Technology of the People's Republic of China · Central University Basic Research Fund of China · National Natural Science Foundation of China · Nanjing International Collaboration Research Program · Suzhou Gusu Leading Talent Program · Carbon Peak and Carbon Neutrality of Jiangsu Province

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