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Nature of Business
 9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Nature of Business

Note 1.  Nature of Business

Organization

SES AI Corporation and its consolidated subsidiaries (together the “Company” or “SES”), is a leading developer and manufacturer of high-performance, AI-enhanced Lithium-Metal (“Li-Metal”) and Lithium-ion (“Li-ion) rechargeable battery technologies for electric vehicles (“EVs”), Urban Air Mobility (“UAM”), drones, robotics, energy storage systems (“ESS”) and other applications. The Company’s mission is to accelerate the world’s energy transition through artificial intelligence (“AI”) enhanced material discovery and battery management. The Company’s differentiated battery technology has been designed to combine the high energy density of Li-Metal with the large-scale manufacturability of conventional Li-ion batteries in order to help promote the transition from the global dependence on fossil fuel-based vehicles to clean and efficient EVs, with the goal of enabling a new era of electric transportation on land and in the air. The Company is seeking to accelerate the pace of innovation by currently utilizing AI across the spectrum of our business, from engineering and manufacturing to battery health and safety monitoring and AI-accelerated battery materials discovery. The Company’s headquarters are located in Woburn, Massachusetts with research and development facilities located there, in Shanghai, China, and in Chungju, South Korea. Principal operations have commenced, and the Company has derived revenue from its principal business activities starting in October 2024.