Shares of Factorial Energy Inc. (NASDAQ:FAC), a solid-state battery developer, traded lower on Thursday, underperforming the broader market.

• Factorial Energy shares are sliding. Why is FAC stock dropping?

Stellantis Battery Integration

The companies said the milestone marks the first automotive integration of the technology in North America and the first integration of Factorial's solid-state cells into a Stellantis vehicle.

The program aims to validate the battery's performance, safety and reliability under real-world charging and driving conditions.