动力电池在充电过程中的膨胀力特性

林春景, 李丹华, 温浩然, 马天翼, 常宏, 常沛祥, 李海强, 刘仕强

Research on swelling force characteristics of power battery during charging

Chunjing LIN, Danhua LI, Haoran WEN, Tianyi MA, Hong CHANG, Peixiang CHANG, Haiqiang LI, Shiqiang LIU

图2 动力电池膨胀力变化特性：(a) 动力电池在0.05 C、不同温度下充电容量和膨胀力曲线；(b) 动力电池在5 ℃、0.05 C下电压、温度、膨胀力、膨胀力变化速率随充电容量的变化图；(c) 动力电池在25 ℃、0.05 C下电压、温度、膨胀力、膨胀力变化速率随充电容量的变化图；(d) 动力电池在45 ℃、0.05 C下电压、温度、膨胀力、膨胀力变化速率随充电容量的变化图

Fig. 2 Changing characteristics of swelling force of power battery: (a) Power battery charging capacity and swelling force curve at 0.05 C and different temperatures; (b) Power battery voltage, temperature, swelling force and swelling force change rate at 5 ℃ and 0.05 C as a function of charging capacity; (c) The voltage, temperature, swelling force and swelling force change rate of power battery at 25 ℃ and 0.05 C vary with the change of charging capacity; (d) The voltage, temperature, swelling force, and swelling force change rate of power battery at 45 ℃ and 0.05 C varies with the rate of change Change graph of charging capacity