SES AI Corporation develops and manufactures advanced lithium-metal and lithium-ion batteries for electric vehicles, urban air mobility, and energy storage applications. Founded in 2012 and based in Massachusetts, the company combines material science expertise with artificial intelligence to create high-performance energy storage solutions. Their focus on integrating smart technology in battery development has resulted in significant improvements in energy density, safety, and manufacturing efficiency. The company’s innovative approach to battery technology includes electrolyte materials discovered through machine learning, setting new standards in the electric transportation sector.
Battery Technology
The company’s portfolio centers on two main product lines: lithium-metal (Li-Metal) and lithium-ion (Li-ion) batteries. Their Li-Metal batteries feature superior energy density compared to conventional alternatives, enabling extended range capabilities for electric vehicles. These batteries incorporate proprietary electrolyte materials identified through the company’s Molecular Universe platform, which uses advanced computing to accelerate material discovery.
SES AI Corp’s manufacturing process integrates intelligent monitoring systems through their Avatar platform, which creates digital representations of physical batteries to predict performance and ensure quality. This technology enables real-time analysis of battery health and safety parameters. The company operates manufacturing facilities in Massachusetts, Shanghai, and South Korea, with the Shanghai location representing the world’s largest Li-Metal battery production facility.
Their battery systems are specifically engineered for various applications, including automotive powertrains, aerial vehicles, and robotics. Each application receives customized solutions that balance power output, energy density, and safety requirements.
Recent Projects
In January 2025, SES AI Corp secured contracts worth $10 million with automotive manufacturers for developing enhanced batteries. They also established a partnership with AISPEX for a $45 million energy storage project. The company introduced an innovative 2170 cylindrical cell designed for humanoid robots and drones, demonstrating their expanded product range. Their preliminary Q4 2024 revenue reached $1.5-2.0 million, with year-end liquidity of approximately $260 million.
Investors
SES AI Corp maintains strong financial backing from established industry leaders. General Motors and Hyundai led their Series D funding rounds, while Honda, Geely, Foxconn, and Shanghai Auto participated as anchor investors during their SPAC merger. Additional strategic investments came from Koch and affiliates of LG and SK. Earlier supporters included Vertex Ventures, Temasek, and Tianqi Lithium, contributing to the company’s development phases.
Business Details
Location: Woburn, Massachusetts, USA
Website: https://ses.ai
LinkedIn: https://www.linkedin.com/company/3256760
