Mercedes-Benz and Formula 1 engineers team up for solid-state battery road tests News February 26, 2025 Jay Dinesh Mercedes-Benz, in collaboration with Mercedes AMG High Performance Powertrains (HPP) and Factorial Energy, has begun real-world road testing of an advanced solid-state battery in a prototype EQS. This marks the first time a lithium-metal solid-state battery has been integrated into a production ...