Electrochemical modelling of Li-ion battery pack with constant voltage cycling

Abstract

P2D model is extended to a battery pack and demonstrated with four cells. The model integrates ageing, thermal and variable porosity prediction. Differential ageing of the cells and resulting current imbalance can be predicted. Thermal variations in the pack and thermally accelerated SEI growth is modelled. Differential porous filling can lead to current imbalance in the pack.