Stellantis and Factorial Energy have achieved a significant milestone by successfully validating Factorial’s 77Ah Factorial Electrolyte System Technology (FEST) solid-state battery cells. This development signifies a step forward in bringing next-generation electric vehicle (EV) batteries to the market.
The collaboration between Stellantis and Factorial was announced in 2024, with the goal of advancing the development and deployment of next-generation EVs using Factorial’s solid-state battery technology. This partnership builds on Stellantis’ $75 million investment in Factorial in 2021.
As part of the partnership, Stellantis is set to launch a demonstration fleet of all-new Dodge Charger Daytona vehicles equipped with Factorial’s solid-state batteries in 2026. This demonstration fleet will play a crucial role in commercializing this innovative technology by validating Factorial’s technology and assessing its performance in real-world driving conditions.
The 77Ah FEST cells developed by Factorial have demonstrated an energy density of 375Wh/kg during the latest assessment and are progressing towards automotive qualification. These solid-state batteries offer higher energy density and faster charging capabilities compared to conventional lithium-ion batteries.
Factorial’s 77Ah FEST cells are capable of charging from 15% to over 90% in just 18 minutes at room temperature. They also deliver high power output with discharge rates up to 4C, meeting the increasing performance demands of EVs.
One of the key advancements in Factorial’s solid-state batteries is the electrolyte formulation that enables the battery to operate effectively in a wide temperature range from -30°C to 45°C. This overcomes previous limitations of solid-state batteries and indicates improved performance in various climates.
Stellantis’ chief engineering and technology officer, Ned Curic, highlighted the significance of this achievement, stating that it puts them at the forefront of the solid-state revolution. The collaboration between Stellantis and Factorial also extends to pack design and technology integration to reduce battery pack weight, improve system efficiency, enhance vehicle range, and support sustainable EV solutions.
Factorial Energy’s CEO, Siyu Huang, emphasized the importance of balancing various features such as high energy density, cycle life, fast charging, and safety in an automotive-sized battery with OEM validation. This achievement with Stellantis marks a significant step in bringing next-generation battery technology from research to reality.
In conclusion, the successful validation of Factorial’s solid-state battery cells by Stellantis represents a significant advancement in the development of next-generation EV batteries. This collaboration underscores the commitment of both companies to pushing the boundaries of battery technology and delivering more advanced solutions for electric vehicles.
