Life Prediction and Modelling

Modeling Particle vs. SEI Cracking In Lithium-Ion Battery Degradation The impact of check-up cycle frequency on the calendar degradation rate is described using a single set of parameters for SEI growth by accounting for the effect of cracking. The developed models are publicly available in PyBaMM, enabling other researchers to immediately implement the model.

Physics-based models for SEI growth during calendar aging need to include both solid particle cracking and SEI cracking to be accurate.

Source: Karger et al Journal of the Electrochemical Society 171]

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