Cuberg | 26,581 followers on LinkedIn. A Northvolt company, advancing next-generation lithium-metal battery technology | Cuberg, a Northvolt company, is commercializing next-generation lithium-metal battery technology to power the future of electric mobility. Operating from the Bay Area, Cuberg’s groundbreaking lithium-metal battery technology delivers generational improvements in energy density and power output and has been validated by the U.S. Department of Energy.