三元软包动力锂电池热安全性

王栋, 郑莉莉, 李希超, 杜光超, 冯燕, 贾隆舟, 戴作强

Thermal safety of ternary soft pack power lithium battery

Dong WANG, Lili ZHENG, Xichao LI, Guangchao DU, Yan FENG, Longzhou JIA, Zuoqiang DAI

表2 25%SOC、75%SOC电池热失控特征参数汇总

Table 2 Summary of thermal runaway characteristic parameters of 25% SOC and 75% SOC batteries

物理量 25%SOC 75%SOC 初始/额定容量/A·h 20.74/23 19.98/23 初始电压/V 3.613 3.906 试验前后重量/g 357.42/279.83 360.16/245.70 减重比 20.67% 31.78% T0/℃ 65.74 83.47 T/℃ 131.4 125.79 Td/℃ 140.13 148.63 Tc/℃ 140.34 163.12 Tm/℃ 439.29 509.36 dT/dtmax/℃·min-1 277.47 388.84