Quantifying EV battery end-of-life through analysis of travel needs with vehicle powertrain models

Summary

This study shows that EV batteries can continue to meet daily travel needs of drivers well beyond the 80 percent floor for remaining energy storage capacity that is commonly assumed. The study also sheds light on a number of other factors concerning battery use and energy and power fade, including that even EV batteries with substantial energy capacity fade continue to provide sufficient buffer charge for unexpected trips with long distances; that enabling charging in more locations, even if only with 120 V wall outlets, prolongs the useful life of EV batteries; and that EVs meet performance requirements even down to 30 percent remaining power capacity.