锂离子电池热失控多维信号演化及耦合机制研究综述

李奎杰, 楼平, 管敏渊, 莫金龙, 张炜鑫, 曹元成, 程时杰

A review of multi-dimensional signal evolution and coupling mechanism of lithium-ion battery thermal runaway

Kuijie LI, Ping LOU, Minyuan GUAN, Jinlong MO, Weixin ZHANG, Yuancheng CAO, Shijie CHENG

图7 过充触发电池热失控过程中的气体信号演变规律[36](a) 储能舱中气体测量实验装置；(b) 温度和电压随时间变化关系；(c) 气体浓度随时间变化关系；(d) 气体浓度随时间变化关系放大图

Fig. 7 Evolution of gas signal during overcharge triggered battery thermal runaway[36](a) Illustration of the experimental environment in a real BESS cabin. Six gas (H2, CO, CO2, HF, HCl, SO2) sensors were set above the battery pack; (b) Voltage profile and surface temperature variation of the LiFePO4 battery pack during overcharging (charge current rate: 0.5 C); (c) Gas concentration variation of six kinds of gas 0—1800 s; (d) Enlarged gas concentration curves 960—1100 s