Natrion Introduces New Battery Product Lines for Uncrewed Systems

Natrion, an American battery materials company, will begin production of defense-optimized battery cells for uncrewed and battery-powered systems.

The new product line includes the Cirrus and Stratus cells, which utilize anode-free and lithium-metal architectures respectively, both based on the company’s proprietary Active Separator material. The cells are designed for platforms including drones, surface and underwater vessels, ground vehicles, and humanoid systems.

According to Natrion, the new cells deliver nearly 80% greater energy density than conventional lithium-ion alternatives while remaining cost-competitive and capable of meeting National Defense Authorization Act (NDAA) Section 842 supply chain requirements. The company stated that the product line expands on its existing partnerships with the United States Air Force and Navy, which have awarded Natrion multiple contracts since its founding.

The pouch-format cells are dimensionally equivalent to battery packs built using standard 21700-type cylindrical lithium-ion cells. This allows Cirrus- and Stratus-based battery packs to be integrated into existing systems while providing increased energy capacity with virtually no additional weight.

Natrion stated that conventional lithium-ion cells typically achieve energy densities of approximately 250 to 280 watt-hours per kilogram (Wh/kg), while its anode-free cells exceed 450 Wh/kg, enabling drones carrying the same payload to operate for longer durations and at higher speeds.

Alex Kosyakov, Cofounder and CEO of Natrion, commented, “The defense sector in particular desperately needs better-performing, US-made battery cells that are right-sized and optimized for these applications.”

“Despite their vastly different requirements, current military systems have long been forced to rely on one-size-fits-all lithium-ion batteries that increase battery costs and waste precious rare minerals, while being poorly optimized for their mission. It’s a lose-lose. Today, we’re fixing that: creating mission-optimized battery cells at a dramatically lower price point, with better endurance and capability, reduced reliance on rare minerals, and manufactured on American soil.”

The company is also expanding its manufacturing capabilities to support end-to-end battery cell production. Natrion stated that its Cirrus cells are designed for low-cost, open-air assembly using standard equipment, reducing reliance on specialized dry-room manufacturing environments commonly associated with lithium-ion battery production.

Cirrus cells also require less than two days of aging following assembly, compared with significantly longer processing periods typical of conventional lithium-ion batteries.

Philip Lee, Natrion’s Vice President of Business Development for Asia-Pacific and former naval aviator in the Republic of Korea Navy, stated, “Higher-energy density Li-ion cells exist, but the tradeoff for performance is often much higher cost. Attritable uncrewed systems need inexpensive power sources that are readily replaceable with robust, local production supply chains, in addition to being very high in energy density. That is what we are offering with Cirrus and Stratus.”

The cells are optimized for attritable high-performance platforms and offer between 100 and more than 250 charge-discharge cycles.

“This dramatically lowers capital and operational costs, allowing us to replace batteries at unprecedented rates. The improved energy density enables extended duration and new mission capabilities that Li-ion simply can’t match,” added Lee.

Natrion has begun shipping cell samples for user testing and the expansion of its cell production capabilities is being supported by its existing high-volume Active Separator manufacturing line in Buffalo, New York.