Israeli battery developer StoreDot has made its commercial-ready 4695 cylindrical battery cells available for evaluation by global defense and aerospace contractors, expanding the company’s focus beyond automotive applications into tactical and mission-critical systems.
The company said the cells, based on its silicon-dominant anode technology, are designed to support rapid charging and high energy density for platforms such as unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs). StoreDot said the batteries can charge from 10% to 80% state of charge in 10 minutes, reducing downtime in operational environments where logistics and turnaround time are critical.
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The 4695 cylindrical format measures 46 millimetres in diameter and 95 millimetres in height. StoreDot said the cells deliver a volumetric energy density of about 800 watt-hours per litre and a gravimetric energy density of roughly 280 watt-hours per kilogram, while maintaining durability over more than 2,000 consecutive extreme fast-charging cycles. The company added that the cells retain around 80% charging capability at temperatures as low as minus 10 degrees Celsius.
StoreDot said the technology is aimed at addressing what defense operators describe as the “logistical tail” of electrified platforms, where frequent battery replacement and long charging times can constrain operations. Potential use cases include persistent UAV missions with rapid ground charging, tactical UGVs requiring extended sensor operation, and “silent watch” applications for land systems that need high power output with minimal acoustic or thermal signatures.
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Beyond performance, StoreDot emphasised supply-chain considerations tied to defense procurement rules. The company said its silicon-dominant chemistry and manufacturing strategy are intended to support compliance with U.S. and allied regulations designed to limit reliance on Chinese battery suppliers. These include the U.S. National Defense Authorization Act provisions that restrict procurement of certain batteries and components from designated entities beginning later this decade.
To that end, StoreDot said it is prioritising Western-aligned manufacturing partnerships, including with Kumyang in South Korea, to help defense original equipment manufacturers mitigate regulatory and geopolitical risks.
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StoreDot develops extreme fast-charging battery technology using proprietary organic and inorganic compounds, with materials optimisation supported by artificial intelligence. The company’s strategic investors include BP, Daimler, Volvo Cars, Polestar, VinFast, and Samsung.