Battery technology is at the heart of the electric vehicle (EV) revolution, and over time, these batteries have evolved from bulky, low-efficiency power sources to the high-density energy packs we see today. This technology has pushed EVs forward, but further improvements could be made.That's where QuantumScape (QS -0.63%) enters the picture. QuantumScape is developing next-generation battery technology that should enhance performance and efficiency. This technology allows for fast charging and longer batte ...