Development of a simulation interface for assessing electromagnetic transients in multiple Li-ion battery technologies assuming parameter variability.

The deployment of Li-ion batteries has been increasing extensively due to recent technological/economic breakthroughs and their high suitability to a range of applications. In this context, this paper (i) develops a simulation algorithm programmed in MATLAB® with a graphical user interface designed in Excel® to assess the transient responses in multiple Li-ion battery technologies and (ii) performs a comparative assessment of the transient responses to verify if there are significant differences. The simulation interface is required since the battery parameters are dependent on the state of charge; hence, conventional electromagnetic transients programs (e.g., ATPDraw®) cannot be directly applied to perform the simulations. Results demonstrate that the differences in the transient responses (terminal voltage) are considerable, particularly when applying robust input currents to the batteries (e.g., decreasing square wave and dynamic stress test). Among analyzed technologies, the Panasonic NCR18650B Li-ion battery showcased the most volatile transients. Hence, the results contradict the common sense that transients in Li-ion batteries are equivalent. The simulation interface is made available to foster further research on the topic. [ABSTRACT FROM AUTHOR]