Development of an on - line mass spectrometry monitoring method for degradation products of redox flow battery electrolyte
氧化还原液流电池电解液降解产物的在线质谱监测方法开发

摘要

氧化还原液流电池（Redox Flow Battery，RFB）作为一种新型的能量存储设备，已在大规模储能领域获得广泛关注。电解液的降解产物可能会影响其性能和稳定性，因此在线监测电解液降解产物的变化具有重要意义。本研究开发了一种新的在线质谱监测方法，用于实时检测氧化还原液流电池中电解液的降解产物。该方法结合了高灵敏度质谱技术与流动电池的工作环境，为电池性能优化提供了有力的技术支持。实验结果表明，该监测方法能够准确追踪电解液中降解产物的浓度变化，揭示了其与电池循环稳定性之间的关系。本研究的创新性在于首次实现了氧化还原液流电池电解液降解产物的在线质谱监测，并为未来电池系统的性能提高提供了可行的技术路径。

Abstract

As a new - type energy storage device, the Redox Flow Battery (RFB) has received extensive attention in the field of large - scale energy storage. The degradation products of the electrolyte may affect its performance and stability. Therefore, it is of great significance to on - line monitor the changes of electrolyte degradation products. In this study, a new on - line mass spectrometry monitoring method was developed to real - time detect the degradation products of the electrolyte in the redox flow battery. This method combines high - sensitivity mass spectrometry technology with the working environment of the flow battery, providing a powerful technical support for battery performance optimization. The experimental results show that this monitoring method can accurately track the concentration changes of degradation products in the electrolyte, revealing the relationship between them and the cycle stability of the battery. The innovation of this study lies in the first realization of on - line mass spectrometry monitoring of the degradation products of redox flow battery electrolyte, and providing a feasible technical path for the performance improvement of future battery systems.