Chen 2020: Experimental Techniques for Multi-scale Lithium-ion Battery Model Parameterization

This academic paper details the rigorous experimental parameterization of a commercial LG M50 21700 lithium-ion battery to enhance the accuracy of physics-based models. The researchers provide a comprehensive dataset of 35 physical, chemical, and electrochemical parameters derived from a meticulous cell teardown and subsequent analysis. Specialized techniques, such as focused ion beam scanning electron microscopy (FIB-SEM) and galvanostatic intermittent titration (GITT), were employed to quantify electrode microstructure and thermodynamic properties. By integrating these values into a pseudo-two-dimensional (P2D) model, the authors demonstrate a high degree of correlation between simulations and real-world discharge profiles. Ultimately, the work establishes standardized protocols for characterizing battery components, providing a robust foundation for predicting performance and degradation in high-energy storage systems.