Effect of temperature rising of cylindrical lithium-ion batteries

Thermal effect occurred in the application of battery not only effects the performance and life of battery,but also brings a hidden danger to the battery.The physical parameters of battery directly influence the thermal effect.The internal resistance of cylindrical LiMn2O4 battery was measured under different temperatures,the heat transfer model was built based on the temperature rising characteristics caused by internal resistance of cylindrical li-ion battery,and the physical parameters were analyzed.The results show that the internal resistance has a significant impact on the battery temperature rising under the decided conditions.The battery temperature rising has a larger calculation error at a constant resistance.