Wang Yupeng, Mu Anle, Wang Wuyang, Yang Bin, Wang Jiahui
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5, Jinhua South Road, Xi'an, P. R. China.
ChemSusChem. 2024 Jul 22;17(14):e202301787. doi: 10.1002/cssc.202301787. Epub 2024 Mar 21.
As a promising large-scale energy storage technology, all-vanadium redox flow battery has garnered considerable attention. However, the issue of capacity decay significantly hinders its further development, and thus the problem remains to be systematically sorted out and further explored. This review provides comprehensive insights into the multiple factors contributing to capacity decay, encompassing vanadium cross-over, self-discharge reactions, water molecules migration, gas evolution reactions, and vanadium precipitation. Subsequently, it analyzes the impact of various battery parameters on capacity. Based on this foundation, the article expounds upon the significance of battery internal state estimation technology. Additionally, the review also summarizes domestic and international mathematical models utilized for simulating capacity decay, serving as a valuable reference for future research endeavors. Finally, through the comparison of traditional experimental methods and mathematical modeling methods, this article offers effective guidance for the future development direction of battery state monitoring. This review generally overview the problems related to the capacity attenuation of all-vanadium flow batteries, which is of great significance for understanding the mechanism behind capacity decay and state monitoring technology of all-vanadium redox flow battery.
作为一种颇具前景的大规模储能技术，全钒液流电池已备受关注。然而，容量衰减问题严重阻碍了其进一步发展，因此该问题仍有待系统梳理和深入探究。本文全面深入地探讨了导致容量衰减的多种因素，包括钒的交叉渗透、自放电反应、水分子迁移、析气反应以及钒沉淀。随后，分析了各种电池参数对容量的影响。在此基础上，阐述了电池内部状态估计技术的重要性。此外，本文还总结了国内外用于模拟容量衰减的数学模型，为未来的研究工作提供了有价值的参考。最后，通过对传统实验方法和数学建模方法的比较，为电池状态监测的未来发展方向提供了有效指导。本文全面综述了全钒液流电池容量衰减相关问题，这对于理解全钒液流电池容量衰减背后的机制以及状态监测技术具有重要意义。
