Zinc Polyiodide REDOX Flow
Next-Generation Long Duration Energy Storage
Our Chemistry
A classical reduction/oxidation (REDOX) flow battery using a proprietary zinc polyiodide chemistry. The base technology was developed by Pacific Northwest National Laboratory (PNNL) with exclusive licensing to The BESSt Company.
Performance
320 Wh/L, making it 20X the energy density than some vanadium-based systems.
Lifespan
Long cycle life with a more the 20-year life space for commercial and industrial (C&I) applications. Virtually unlimited life.
Safety
Our battery is non-toxic and non-flammable. It uses two earth abundant minerals, zinc and iodide.
Configuration
Our portfolio includes both membrane-based and membrane-less configuration. All of our designs are thoughtfully developed using the Design for Manufacturing (DFM) strategy, which uses modular designs and standardized components to simplify assembly, reduce costs, and ensure scalability.
Routine Maintenance
Unlike lithium-ion, routine maintenance (over decades) may be required for mechanical components like pumps and valves, rather than replacing the battery itself.
Innovation Realized
The Power of Zinc Iodide (ZnI₂) REDOX Flow Battery Technology
The BESSt Company is revolutionizing energy storage with our proprietary Zinc Iodide (ZnI₂) REDOX flow battery technology offering a radical differentiation through chemistry and performance. Our batteries provide tangible advantages like modularity, safety, and true long duration performance.
We offer a safe, scalable, and cost-effective solution that surpasses industry standards, empowering businesses to achieve genuine energy independence and a truly sustainable footprint.
Control your power — full facility backup, no compromise.
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Challenging traditional redox flow battery technologies with a sustainable, accessible, and eco-friendly solution. What’s the difference? A great deal. We have exclusive rights to a propriety technology developed by PNNL on zinc iodide flow batteries. There is no other long duration battery like ours offering a safe & sustainable components, using no rare earth minerals and a 30-year warranty.
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Backed by over 100-peer reviewed studies performed on redox flow batteries. The technology behind flow batteries is proven and derisked.
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Zinc polyiodide is safer than lithium, longer lasting than traditional flow systems, and scalable. Our energy infrastructure is aging, adverse climate conditions are impacting our lives and the result is blackouts are becoming more common.
A Different Kind of Company
IP-driven chemistry with supply chain advantage and unit economics built for scale
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