Hanyang University ERICA Researchers Uncover a Hidden Battery Flaw That May Shorten EV Lifespans

Researchers reveal how air exposure alters manganese-coated battery materials and how the damage can be prevented

GYUNGGI-DO, South Korea, July 28, 2026 /PRNewswire/ -- As the need for sustainable electric vehicles increases, cobalt-free high-nickel cathode batteries (such as manganese-coated nickel core batteries) have emerged as one of the most promising technologies. These batteries increase the driving range while reducing dependence on expensive critical minerals. However, a new study suggests that a hidden weakness in the battery material could significantly reduce the lifespan of these next-generation batteries.