no code implementations • 20 May 2024 • Hamidreza Movahedi, Andrew Weng, Sravan Pannala, Jason B. Siegel, Anna G. Stefanopoulou
The battery state of health (SOH) based on capacity fade and resistance increase is not sufficient for predicting Remaining Useful life (RUL).
no code implementations • 9 Nov 2022 • Andrew Weng, Sravan Pannala, Jason B. Siegel, Anna G. Stefanopoulou
In this work, we derive analytical expressions governing state-of-charge and current imbalance dynamics for two parallel-connected batteries.
no code implementations • 23 Mar 2022 • Joseph A. Drallmeier, Clement Wong, Charles E. Solbrig, Jason B. Siegel, Anna G. Stefanopoulou
Initial experimental results from this study show a correlation between internal resistance and capacity which can be approximated with a linear fit, suggesting internal resistance measurements taken above a threshold cell terminal voltage may be a suitable initial screening metric for the capacity of retired cells without knowledge of the SOC.
no code implementations • 17 Aug 2021 • Peyman Mohtat, Sravan Pannala, Valentin Sulzer, Jason B. Siegel, Anna G. Stefanopoulou
The new approach is simpler to implement and can be used with any model to impose varying levels of constraints on variables pertinent to degradation, such as plating potential and mechanical stress.
