Massachusetts start-up aims to find a new life for electric vehicle batteries

The switch to electric vehicles is accelerating worldwide. But there's a problem down the road: All those electric vehicles are powered by batteries, and when they come to the end of their life cycles, they could end up as toxic waste.

But a Massachusetts company has a unique solution: turning lithium-ion batteries into longer-lasting, cheaper, and less-polluting energy cells.

Bruce Gellerman of WBUR reports.