A new study has identified a critical factor limiting the efficiency of electric vehicle battery packs: inconsistencies between individual cells. Researchers found that even minor variations in cell performance—such as differences in charge capacity or internal resistance—create imbalances that reduce overall energy output and lifespan. The findings highlight how these inconsistencies force battery management systems to operate conservatively, often degrading performance to maintain safety. The work could guide future designs to minimize these inefficiencies and improve EV range and durability.
Study quantifies how cell-to-cell inconsistency constrains EV battery pack performance EurekAlert!
