Stellantis and Factorial Announce Key Milestone in Solid-State EV Battery Development

Audio By Carbonatix

Stellantis and Factorial Energy made a major  announcement for EV batteries on April 24, 2025. The companies reported that they’ve successfully validated a powerful new solid-state battery cell, bringing the industry one step closer to safer batteries, faster charging, and longer-lasting models than today’s lithium-ion batteries.

In close collaboration, Stellantis and Factorial have also been working on optimizing the battery pack design to reduce weight and improve efficiency—enhancements that will directly translate into a longer range and lower costs for drivers. The reduced pack weight supports sustainability goals while making electric vehicles (EVs) more practical and affordable across the board. “Battery development is about compromise. While optimizing one feature is simple, balancing high energy density, cycle life, fast charging, and safety in an automotive-sized battery with OEM validation is a breakthrough,” said Siyu Huang, CEO of Factorial Energy. “This achievement with Stellantis is bringing next-generation battery technology from research to reality.” This milestone builds on Stellantis’ $75 million investment in Factorial, made in 2021, and deepens the strategic partnership as they move toward real-world implementation. The next step? Stellantis plans to roll out a demonstration fleet equipped with Factorial’s solid-state batteries by 2026, beating BYD’s goal of 2027. This fleet will enable the company to test the technology in real-world driving conditions, a crucial step for final validation before mass production.

As the auto industry races toward an all-electric future, innovations like this one bring us closer to EVs that don’t compromise on performance, range, or convenience. With solid-state batteries on the horizon, the electric revolution is about to get a whole lot more exciting.