Solid state batteries have entered trailblazer mode. Pretty much every big automaker and battery plant is working on making a commercially-available product—a race to achieving that sweet, sweet equilibrium between cost, scalability, and viability that lets a piece of conceptual tech make its way into the car parked in your driveway. But while some automakers have begun to test the tech in cars, others, like Kia, warn that the real deal is still years away.
