Will Solid State Batteries Bring Gas-Competitive Range, Quicker Charging to EVs? The solid-state battery’s riddle may finally have been solved. Quantum Scapes Battery, backed by Bill Gates, it's tech, and it's market cap, is one of the highest and most promising techs as well. The magic ingredient? Lithium https://www.motortrend.com/news/technologue-solid-state-battery-frank-markus/