In this work, thermal runaway of lithium-ion battery was characterised under adiabatic and non-adiabatic conditions using Accelerating Rate Calorimeter (ARC) and oven respectively. Battery with higher electrical capacity demonstrated a higher tendency to experience thermal runaway with shorter induction time and resulted with a more energetic response, as indicated by higher maximum temperature rise. Oven tests at 190 °C was able to capture thermal runaway characteristics in batteries with 100% state-of-charge (SOC) only and resulted in a maximum temperature of 738–783 °C. Two batteries were more inclined to suffer thermal runaway as the induction time was reduced by 8.6%–115.98 min, compared to 126.92 min for single cell. A further inclined by 15%–107.72 min was recorded for two batteries with parallel electrical connection. Meanwhile, ARC was able to induce thermal runaway in 50% SOC battery and instigated exothermic thermal decomposition in 0% SOC battery due to the longer heating process. The maximum temperatures recorded from ARC tests were between 404 and 522 °C, lower than oven tests since some of the battery energy content was released slowly during the long self-heating period, leaving the battery with less energy for rapid release during thermal runaway.

在这项工作中，分别使用加速量热仪（ARC）和烘箱在绝热和非绝热条件下表征锂离子电池的热失控。具有更高电容量的电池表现出更高的热失控倾向，感应时间更短，并导致更有活力的响应，如更高的最大温升所示。190 °C 的烤箱测试仅能在 100% 荷电状态 (SOC) 的情况下捕获电池的热失控特性，并导致最高温度为 738-783 °C。两个电池更容易遭受热失控，因为诱导时间减少了 8.6%–115.98 分钟，而单节电池为 126.92 分钟。对于并联电连接的两个电池，记录到进一步倾斜 15%–107.72 分钟。同时，由于较长的加热过程，ARC 能够在 50% SOC 电池中引起热失控，并在 0% SOC 电池中引发放热热分解。ARC 测试记录的最高温度在 404 至 522 °C 之间，低于烤箱测试，因为在长时间的自热期间，部分电池能量释放缓慢，导致电池在热失控期间快速释放的能量较少。