Stellantis begins road tests of solid-state battery technology

Stellantis has launched a road-testing program for solid-state battery cells, integrating Factorial's FEST (Factorial Electrolyte System Technology) into a Dodge Charger Daytona development vehicle, according to Design and Development Today. The programme aims to verify the cells' performance, safety and reliability under real-world driving conditions. The move marks Stellantis' first integration of solid-state cells into a prototype vehicle and underscores the Turin-based group's commitment to securing next-generation battery technology as the automotive industry races toward high-energy-density, fast-charging power sources.

Solid-state batteries represent a significant leap in energy density and charging speed compared to conventional lithium-ion cells. According to industry coverage from Automotive World and other technology outlets, solid-state cells promise to extend driving range, reduce charging times and improve thermal stability—advantages that could reshape competition in the electric-vehicle market over the next five to ten years. By testing Factorial's cells now, Stellantis is positioning itself to evaluate whether the technology can meet the automaker's durability and performance standards before committing to large-scale manufacturing partnerships or integration into production vehicles.