储能科学与技术 ›› 2022, Vol. 11 ›› Issue (4): 1246-1263.doi: 10.19799/j.cnki.2095-4239.2022.0009

• 国际优秀储能青年科学家专刊 • 上一篇    下一篇

水系有机液流电池电化学活性分子研究现状及展望

彭康(), 刘俊敏, 唐珙根, 杨正金(), 徐铜文   

  1. 中国科学技术大学化学与材料科学学院，安徽 合肥 230026
  • 收稿日期:2022-01-05 修回日期:2022-01-20 出版日期:2022-04-05 发布日期:2022-04-11
  • 通讯作者: 杨正金 E-mail:pengkang@ustc.edu.cn;yangzj09@ustc.edu.cn
  • 作者简介:彭康（1993—），男，博士，从事水系有机液流电池研究，E-mail：pengkang@ustc.edu.cn；
  • 基金资助:
    国家自然科学基金项目(U20A20127)

Status and prospects of organic eletroactive species for aqueous organic redox flow batteries

Kang PENG(), Junmin LIU, Gonggen TANG, Zhengjin YANG(), Tongwen XU   

  1. School of Chemistry and Materials, University of Science and Technololy, Hefei 230026, Anhui, China
  • Received:2022-01-05 Revised:2022-01-20 Online:2022-04-05 Published:2022-04-11
  • Contact: Zhengjin YANG E-mail:pengkang@ustc.edu.cn;yangzj09@ustc.edu.cn

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摘要：

水系有机液流电池作为大规模储能技术，在实现可再生能源高效利用方面展现出良好的应用潜力。本文结合水系有机液流电池研究现状，重点围绕能量密度、功率密度、效率和循环寿命四个重要性能参数对水系有机液流电池电化学活性分子进行综述，阐明了电化学活性分子溶解度、电势、电化学反应转移电子数及速率、尺寸、化学稳定性等对水系有机液流电池性能的影响。通过与磷酸铁锂电池、铅碳电池、水系全钒液流电池等技术对比，展望水系有机液流电池发展前景，认为能量密度≥30 W·h/L，最大放电功率密度≥300 mW/cm2，能量效率≥80%，循环容量衰减≤0.05%/d的水系有机液流电池有望参与长时储能市场竞争。

关键词: 水系有机液流电池, 能量密度, 功率密度, 效率, 循环寿命

Abstract:

Aqueous organic redox flow batteries (AORFBs) represent a promising technology for large-scale storage and efficient utilization of renewable energy. In this paper, we thoroughly review organic electroactive species against four important performance parameters (energy density, power density, efficiency, and cycle life), based on the current status of AORFB research. For the different organic electroactive molecules, we clarify the effects on AORFB performance of solubility, potential, electron number, electrochemical redox kinetics, size, and chemical stability. The development of AORFBs shows favorable prospects relative to lithium iron phosphate batteries, lead carbon batteries, and all-vanadium redox flow batteries. AORFBs with energy density ≥30 Wh/L, maximum discharge power density ≥300 mW/cm2, energy efficiency ≥80%, and capacity retention rate ≤0.05%/d can be expected to compete in the long-term energy storage market.

Key words: aqueous organic redox flow batteries, energy density, power density, efficiency, cycle life

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