This episode examines solid-state battery technology as a potential advancement for electric vehicles, noting its promise for increased energy density, enhanced safety, faster charging, longer lifespan, and wider operating temperature range compared to traditional lithium-ion batteries. However, the source also highlights significant challenges to widespread adoption by 2030, including manufacturing scalability, high cost, ongoing material development, achieving proper interfacial compatibility between components, and ensuring sufficient ionic conductivity. While various companies are working towards commercialization, with some aiming for initial production in the late 2020s, mass production for the mainstream market is expected later. Ultimately, the report concludes that solid-state batteries are unlikely to completely replace gasoline cars by 2030, though their introduction will contribute to the ongoing shift towards electric vehicles.