CellCube’s VRFB technology stores energy in non-toxic, widely available vanadium electrolytes contained in external tanks, enabling independent scaling of power and energy capacity. The system provides at least 20,000 cycles over a 30-year service life without capacity loss or electrolyte degradation. Features include reusable materials, extended storage capacity (4-24+ hours), double-walled tanks, automatic fault detection, modular design, and minimal maintenance requirements.
CellCube’s VRFB systems offer modular designs with customizable power and energy capacities, 4-24+ hour storage duration, non-toxic vanadium electrolyte, double-walled safety tanks, automatic fault detection, and minimal maintenance, ensuring consistent performance throughout a 30-year lifespan.
In 2024, CellCube received $19 million from the U.S. Department of Defense Innovation Unit and DOE to deploy a megawatt-scale vanadium flow battery system for the Extended Duration Storage for Installations initiative at U.S. Marine Corps facilities, in collaboration with Potelco Inc., Leidos, and EPRI.
Mustang Energy PLC holds majority ownership via VRFB Holdings; Bushveld Minerals sold its 50.5% stake in 2021; in 2021, a consortium provided $30M to scale up VRFB production.
