Roundtables: Why 2026 Is the Year for Sodium-Ion Batteries

Listen to the session or watch below Sodium-based batteries could be a cheaper, safer alternative to lithium-ion, and the technology is finally making its way into cars—and energy storage arrays on the grid. Sodium-ion batteries are one of MIT Technology Review’s 10 Breakthrough Technologies of 2026 list, and this subscriber-only discussion explains why. Watch a…