The electric vehicle market, while still small, has grown rapidly this year. Of course, a global shortage of microchips could slow things down. In the long term, there’s also the issue of availability of lithium, a soft, silvery metal that’s the key component in electric car batteries. Marketplace’s Meghan McCarty Carino speaks to Chris Berry, a strategic metals consultant and president of House Mountain Partners. He says demand for lithium is expected to triple in the next five years which is why some automakers, like GM, have taken the unusual step of making deals with lithium mines directly.