New solid-state battery from Stellantis?
Stellantis and Factorial Energy have signed an agreement that includes joint research into a solid-state battery for electric vehicles.

New solid-state battery from Stellantis?
“Our investment in Factorial and other recognized battery partners increases the speed and agility we need to deliver cutting-edge technology to our electric vehicle portfolio,” says Stellantis CEO Carlos Tavares. “Initiatives like this will enable faster time to market and a more cost-effective transition to solid-state technology.” Factorial has developed a solid-state technology that addresses the key challenges standing in the way of even wider adoption of electric vehicles: range and safety.
“It is a great honor to partner with Stellantis, a leading global mobility provider that includes some of the world’s most recognized automotive brands,” said Siyu Huang, co-founder and CEO of Factorial Energy. “This presents us with a unique opportunity to advance the introduction of our clean, efficient and safe solid-state battery technology to the mass market.” Stellantis announced at the EV Day in July 2021 the goal of bringing the first competitive solid-state battery technology to market by 2026.
Factorial's developments are based on FEST technology (Factorial Electrolyte System Technology), which uses a proprietary solid electrolyte material. This enables safe and reliable cell performance with high voltage and high capacity electrodes and has been scaled into 40 Ah cells that operate at room temperature. FEST is safer than traditional lithium-ion technology, increases range, and is ready-to-use for easy integration into existing lithium-ion battery manufacturing infrastructure.