Integrated electro-thermal model for pouch lithium ion batteries

Lithium ion batteries are being used in an increasing number of applications. However, one of their major weaknesses is their sensitivity to temperature. Indeed, their safety and aging strongly depend on their temperature. In order to control cell temperatures, each cell in a battery pack is usually equipped with a thermal sensor. This paper proposes an integrated electro-thermal model that is capable of predicting the thermal behavior of a battery cell based only on its current and ambient conditions. The proposed model was tuned and validated by means of experimental results. The obtained precision is sufficient to predict the temperature of a battery with an acceptable accuracy considering the low complexity of the proposed model.