Modeling of Lithium Plating and Stripping Dynamics during Fast Charging
Polina Brodsky Ringler, Matt P. Wise, Prashanth Ramesh, Jung‐Hyun Kim, Marcello Canova, Chulheung Bae, Jie Deng, Heechan Park
Abstract
This paper proposes a new model that predicts the cell voltage dynamics and capacity degradation induced by lithium plating and stripping. The proposed model uses a single equilibrium reaction to describe the deposition and dissolution of metallic lithium, predicting the partial reversibility of the plating/stripping reaction, the characteristic voltage plateau during relaxation, and the capacity loss due to the Loss of Cyclable Lithium (LCL). The model is integrated with a Doyle–Fuller–Newman (DFN) electrochemical model, calibrated and validated with experimental data. The model has the potential to improve the accuracy of predicting the effects of lithium plating in Li-ion cells and aid in the development of Extreme Fast Charging (XFC) technology for BEVs.