Cuberg’s core lithium metal battery technology replaces the graphite anode with a lithium metal anode and uses a proprietary non-flammable liquid electrolyte, achieving energy densities up to 369 Wh/kg and power outputs up to 2000 W/kg, while maintaining compatibility with existing lithium-ion manufacturing processes and enhanced safety against thermal runaway.
High-performance lithium metal battery cells featuring up to 369 Wh/kg energy density, 2000 W/kg power output, system-level integration, and enhanced safety features, designed for electric aviation and high-performance mobility applications.
Under Northvolt’s ownership, Cuberg extended its lithium metal cell cycle life from 370 to 672 cycles with 80% capacity retention in 2022. In November 2024, Lyten acquired Cuberg’s San Leandro production facilities and plans a $20 million investment to convert them for lithium-sulfur battery production with 200 MWh annual capacity by 2025.
Cuberg was supported by Boeing HorizonX Ventures, Activate.org, the California Energy Commission and the U.S. Department of Energy before being acquired by Northvolt in 2021. Lyten’s investors include Stellantis, FedEx and Honeywell.
