Electric cars could use another big battery breakthrough — this CEO says he’s got it

Elon Musk is well known for trying to disrupt old industries. He builds spacefaring rockets in-house and makes them reusable, dramatically lowering the cost to leave Earth. He showed electric vehicles can be made and sold in large quantities, because if they’re fun to drive, people will want to buy them. But when the question of batteries was raised on a Tesla earnings call in the summer of 2017, Musk asked for help:“Can someone please come up with a battery breakthrough? We’d