ACCELERATED DEGRADATION OF LI-ION BATTERIES FOR HIGH RATE DISCHARGE APPLICATIONS

The U.S. Army has been pursuing vehicle electrification to achieve enhanced combat effectiveness. The benefits include supporting new capabilities that require high power pulse duty-cycles. These pulse power discharge rate can be significantly higher than commercial Hybrid Electric Vehicle (HEV) Energy Storage Systems (ESS) systems, resulting in significantly lower lifetimes than commercial applications. Results of high power pulse duty cycles on lifetime performance are presented as well as a discussion on the cause of degradation.

Citation: T. Thampan, Y. Ding, L.Toomey, A. Hundich, V. Babu, “Accelerated degradation of Li-ion Batteries for High Rate Discharge Applications”, In Proceedings of the Ground Vehicle Systems Engineering and Technology Symposium (GVSETS), NDIA, Novi, MI, Aug. 13-15, 2019.