Stellantis and Factorial have signed an agreement to advance Factorial’s high-voltage traction solid-state battery technology. The agreement also includes a strategic investment from Stellantis, although the sum of the investment has not yet been confirmed. It follows the announcement of Stellantis’ target to launch a solid state battery before 2026 during its EV Day livestream in July 2021.

Factorial has developed solid-state technology that aims to encourage EV adoption through the enhancement of driving range and driver safety. the firm’s advances are based on FEST (Factorial Electrolyte System Technology). It leverages a proprietary solid electrolyte material that enables safe and reliable cell performance with high-voltage and high-capacity electrodes, and has been scaled in 40 Ah cells that perform at room temperature.

With FEST, Factorial aims to increase the driving range of EVs. It also aims to enhance the production of EV batteries through FEST’s simple integration into existing lithium-ion battery manufacturing infrastructure.