Largo - Model VCHARGE - Advanced Vanadium Redox Flow Battery System
One of the world’s most advanced vanadium redox flow battery system.
Innovative stack design & electrolyte purification
Our patented purification process addresses several technical barriers in typical VRFB systems leading to true cost advantages.
The VCHARGE system contains high performance flow cells that enable a 5x reduction in core cell materials leading to significant cost savings and the smallest footprint of any known flow battery.
Superior & modular system design
Unlike competing battery technologies, the VCHARGE system’s energy and power modules are housed in separate containers.
The VCHARGE system allows for matching of power and energy to project requirements with a multitude of configuration. Our vertical stacking design allows 2x power/energy density in same footprint with significant cost advantages not possible with off-the-shelf tanks.
Durability advantage
Long-duration applications require technology that can withstand various environmental factors over long periods of time.
The VCHARGE system`ssteel container design provides robust protection from weather, UV degradation and vandalism. We have performed extensive material testing to prevent stack degradation in long-duration applications cost advantages which results in significant cost advantages.
- Estimated lifespan of over 20+ years with almost no battery degradation
- Intrinsically safe with no fire risk from thermal runaway with recyclability attributes
- Scalability by adding larger tanks and additional electrolyte
- Ideally suited for long-duration and large-scale utility, commercial and industrial renewable energy storage application
- Can switch from charge to discharge instantaneously, providing users with a guaranteed
- Able to discharge 100% without any damage to the battery
The VCHARGE battery system technology has been proven safe for use in urban applications in proximity to adjacent structures and densely populated areas due to its inherent non-flammability. It is one of the leading technologies in long duration energy storage applications because it is intrinsically safe, with no fire risk from thermal runaway.
Thermal runaway occurs when current flowing through a battery on charge or overcharge causes temperatures to rise, further increasing the current output and temperature, which eventually results in fire. Thermal runaway is a significant risk in solid-state batteries, such as lithium-ion applications.
The electrolyte solution used in the VRFB is non-volatile – it is neither flammable, nor explosive as a result of its high water content, which offers a high degree of operational safety compared to other battery energy storage systems. The inherent non-flammability of the water-based electrolyte used in VRFBs makes them ideal for deployment in densely populated areas, airports, schools, and wooded areas where mitigating the safety risk caused by fire and smoke is paramount.