DETROIT — While automakers and dealers were showing off new electric vehicle offerings 30 miles down the road at the Detroit auto show, thousands of executives, engineers, salespeople and journalists gathered in Novi, Mich., at the Battery Show this week to discuss how the EVs of the future will be powered.
It's an urgent topic. Automakers are setting aggressive EV sales targets, and the federal government is pressing for 50 percent of new-vehicle sales to be zero-emission by 2030. California is moving to ban the sale of new gasoline-powered vehicles beginning in 2035.
But the battery supply chain to make it all possible remains fragile. Automakers and battery companies are largely reliant on materials that are sourced and processed overseas. And even there, the amount of mining taking place only scratches the surface of what will be needed in the near future.
Executives, analysts and economists at the Battery Show discussed how to address those challen…