Factorial, Cartesian III Merge for $1.1B Solid-State Battery Tech
Energy Storage
Definitive Agreement
Merger:
Jun 08, 2026
Industry:
MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES
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Factorial and Cartesian Growth Corporation III Announce $1.1 Billion Business Combination to Advance Solid-State Battery Technology
BOSTON, MASS., December 18, 2025 - Factorial Inc., a pioneer in solid-state battery technology, and Cartesian Growth Corporation III (Nasdaq: CGCT), a special purpose acquisition company (SPAC), have announced a definitive business combination agreement (BCA).
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About Factorial Energy Inc.
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.
