Lithium-ion batteries, the current industry standard for electric vehicles, contain liquids that make them vulnerable to overheating, fire, and loss of charge over time. By contrast, NASA's SABERS (Solid-state Architecture Batteries for Enhanced Rechargeability and Safety) project is developing experimental solid-state battery packs that do not suffer from these drawbacks.
SABERS receives funding from NASA's Convergent Aeronautics Solutions project, which is designed to investigate certain technologies to solve aviation's biggest challenges: in this case, battery-powered flight.
Carbon from air travel equates to around 2% of all global greenhouse gas emissions. Batteries are hypothesized as a potential ameliorating solution to emissions-heavy jet fuel.