锂离子电池热失控监测与预警的气敏技术研究进展

谭则杰, 周晓燕, 徐振恒, 樊小鹏, 田兵, 王志明, 李秋桐, 付佳龙, 李志勇, 郭新

Research progress of gas-sensing technologies for the monitoring and early warning of thermal runaway in lithium-ion batteries

Zejie TAN, Xiaoyan ZHOU, Zhenheng XU, Xiaopeng FAN, Bing TIAN, Zhiming WANG, Qiutong LI, Jialong FU, Zhiyong LI, Xin GUO

图4 (a) GC分析LIBs热失控产气系统示意图；(b) 不同电池体系产气量和产气速率；(c) LFP电池热失控产气成分[87]；(d) Raman谱气体检测系统示意图；(e) 不同体积分数CO2 的Raman峰变化[89]；(f) 气体传感器热失控气体监测系统示意图；(g) 热失控过程中不同气体的浓度变化[68]

Fig. 4 (a) Schematic of the gas analysis system with GC; (b) Comparison of the gas volume and gas-releasing rate in different LIBs; (c) Gas components of the LIB with LFP cathode during thermal runaway[87]; (d) Schematic of the gas diagnosis system by using Raman spectroscopy; (e) Raman peaks as a function of CO2 volume ratios [89]; (f) Schematic of the gas diagnosis system with gas sensors; (g) Concentration changes of different gases collected during thermal runaway process[68]