Ohio State University study explores reasons limiting EV battery life

Finds lithium accumulates on copper current collector affecting electron transfer

In a bid to determine factors which limits battery life, researchers at the Ohio State University have found that over time lithium, which is used in batteries to power hybrid and electric vehicles (EVs), accumulates on the “current collector”, which is a sheet of copper that allows electron transfer between the electrodes and the car’s electrical system thus affecting the performance of the batteries, said a report on the University’s website.