红外热成像技术监测氧化还原液流电池热效应

Chi Ping Li, M. Ling Chen, Chen Chen Tseng, Shu Ling Huang
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引用次数: 1

摘要

RFB(氧化还原液流电池)在工作状态下消耗电能产生热量,在正常或异常状态下将热量转化为热形式释放;因此,控制热效应对提高电池的性能和安全性具有重要意义。具体来说,当电池在较大的电流下充放电时,RFB会带来较大的热效应。由于不同的电池组件和堆叠设计,通过观察RFB系统的热量分布不均匀,降低电池的性能和寿命周期来识别问题。因此,了解电池在高倍率放电或过充情况下的热效应对电池的健康状态(SOH)具有重要意义。红外热成像仪(IRTI)是一种非接触式测量系统,由镜头和计算机分析系统组成。IRTI可以检测到某一区域的温度变化,通过分析可以有效地识别出真正的热点,为RFB系统的设计做进一步的改进。在本研究中,我们开发了一个单一的电池来设计FB系统的电池堆,并研究了电池的性能变化。应用红外热成像技术对电池堆热效应进行了有效的分析和评价。利用具有温度剖面数据功能的高分辨率图像,对RFB组件或关键材料的性能进行评估,并探讨其发展的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Monitoring of Thermal Effect of Redox Flow Battery by the Infrared Thermal Image Technology
RFB (redox flow battery) generate heat when consume the electric power in working state, and that will transfer into a thermal form emitted from the normal or abnormal state; therefore, it is important to control the thermal effect for battery’s performance and safety improvement. Specifically, RFB will bring big thermal effect when the cell charged or discharged by the higher electric current. Due to the different battery’s components and stack designs, the problems of RFB system identified by looking at the uneven heat distribution, the reduction of the battery's performance and life cycle. Therefore, it is important to understand the battery’s thermal effect in high-rate discharge or its thermal effect in overcharge cases for the state of battery’s health (SOH). Infrared thermal imager (IRTI) is a non-contact measurement, and that composed by the lens and computer analysis system. IRTI can detect a certain area of the temperature change, whereby the analysis can effectively identify the real hot spots, and make further improvements for RFB system’s design. In this study, we developed a single cell to design the battery’s stack of FB system and investigate battery’s performance changes. Infrared thermal imaging technology applied to analyze and evaluate the thermal effect of battery's stack effectively. The high-resolution images with the function of the temperature profile data used to evaluate the components of the stacks or the key materials for RFB performance, and explore the possibility of its development.
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