The weight of electric vehicles batteries should be cut by half over the next decade in order to make the cars more efficient and environmentally friendly, Stellantis NV CEO Carlos Tavares said Wednesday.

"They need a very significant breakthrough in terms of chemistry," he said of EV batteries. "Right now for a decent range, we are using 1,000 pounds, i.e. around 500 additional kilograms, of raw materials to create the battery pack to move the vehicles."