首页|Progress and prospects of pH-neutral aqueous organic redox flow batteries:Electrolytes and membranes

Progress and prospects of pH-neutral aqueous organic redox flow batteries:Electrolytes and membranes

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Aqueous organic redox flow batteries(AORFBs),which exploit the reversible electrochemical reactions of water-soluble organic electrolytes to store electricity,have emerged as an efficient electrochemical energy storage technology for the grid-scale integration of renewable electricity.pH-neutral AORFBs that feature high safety,low corrosivity,and environmental benignity are particularly promising,and their battery performance is significantly impacted by redox-active molecules and ion-exchange membranes(IEMs).Here,representative anolytes and catholytes engineered for use in pH-neutral AORFBs are out-lined and summarized,as well as their side reactions that cause irreversible battery capacity fading.In addition,the recent achievements of IEMs for pH-neutral AORFBs are discussed,with a focus on the con-struction and tuning of ion transport channels.Finally,the critical challenges and potential research opportunities for developing practically relevant pH-neutral AORFBs are presented.

Aqueous organic redox flow batterypH-NeutralAnolyteCatholyteMembrane

Kang Peng、Gonggen Tang、Chao Zhang、Xian Yang、Peipei Zuo、Zhanfeng Xiang、Zhong Yao、Zhengjin Yang、Tongwen Xu

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Key Laboratory of Precision and Intelligent Chemistry,Department of Applied Chemistry,School of Chemistry and Materials Science,University of Science and Technology of China,Hefei 230026,Anhui,China

Suqian Time Energy Storage Technology Co.,Ltd.,Suqian 223800,Jiangsu,China

National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaAnhui Provincial Natural Science FoundationFundamental Research Funds for the Central Universities

2022YFB38053032022YFB380530422308345U20A201272308085QB68WK2060000059

2024

10.1016/j.jechem.2024.04.031

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.96(9)