Factorial, Cartesian III Merge for $1.1B Solid-State Battery Tech

Founded and headquartered in the Boston, Massachusetts, area, Factorial operates at the forefront of solid-state battery development, offering safe, high-performance alternatives to traditional lithium-ion technologies. Its proprietary FEST® (Factorial Electrolyte System Technology) and Solstice™ platforms deliver greater energy density, enhanced safety, and compatibility with existing manufacturing systems. Factorial’s commercial partnerships include global automotive leaders such as Mercedes-Benz, Stellantis, Hyundai Motor Company, and Kia Corporation. Early investors include GVP Climate in partnership with Gatemore Capital Management and WAVE Equity Partners. For more information, visit www.factorialenergy.com.