AMSTERDAM & BOSTON (CHATNEWSTV) — Stellantis N.V. and U.S.-based Factorial Energy announced Thursday they have successfully validated automotive-sized solid-state battery cells, marking a critical step toward the mass adoption of next-generation electric vehicle (EV) technology.
The validated FEST® (Factorial Electrolyte System Technology) cells deliver an energy density of 375 watt-hours per kilogram and can charge from 15% to 90% in just 18 minutes. The cells are also capable of operating in extreme temperatures, from -30°C to 45°C (-22°F to 113°F), while discharging at high power rates up to 4C.
“Reaching this level of performance reflects the strengths of our collaboration with Factorial,” said Ned Curic, Stellantis’ Chief Engineering and Technology Officer. “This breakthrough puts us at the forefront of the solid-state revolution, but we are not stopping there.”
Stellantis plans to incorporate the technology into a demonstration fleet by 2026 as part of its effort to accelerate the transition to more efficient, lighter, and lower-cost battery systems.
Factorial CEO Siyu Huang called the development a “breakthrough” in balancing energy density, cycle life, fast charging, and safety at an automotive scale.
“Battery development is about compromise,” Huang said. “This achievement with Stellantis is bringing next-generation battery technology from research to reality.”
The collaboration extends beyond cell chemistry to include optimizing battery pack architecture, reducing system weight, and improving vehicle integration. These enhancements aim to improve driving range while lowering overall EV costs.
Stellantis, the parent company of Jeep, Dodge, Peugeot, and other global brands, invested $75 million in Factorial in 2021. The companies see this latest milestone as a foundation for commercializing solid-state batteries in the coming years.
