Amprius Lands $35 Million Follow-On Order, Signaling Momentum in UAS Battery Adoption

Amprius Technologies has secured a repeat purchase order exceeding $35 million from a leading unmanned aerial systems (UAS) manufacturer, reinforcing its position as a key supplier of high-performance lithium-ion batteries for aviation-grade applications. The order follows a $15 million commitment earlier this year, suggesting accelerating demand for Amprius’ proprietary SiCore® cells.

Silicon Anode Batteries Gain Ground in Aviation

The SiCore platform, built on Amprius’ silicon anode architecture, offers energy densities up to 450 Wh/kg and volumetric densities reaching 1,150 Wh/L. These figures surpass conventional lithium-ion benchmarks and are critical for extending flight endurance in electric aircraft. For UAS operators, this translates into longer mission profiles, reduced payload constraints, and enhanced operational flexibility.

Amprius claims third-party validation of even higher performance metrics, up to 500 Wh/kg and 1,300 Wh/L, positioning its cells among the most energy-dense commercially available options. The company’s ability to scale production while maintaining performance has made it a preferred supplier for aerospace and defense customers seeking next-generation propulsion solutions.

Strategic Manufacturing and Global Reach

To support growing demand, Amprius has secured over 1.8 GWh of contract manufacturing capacity, including a strategic agreement in South Korea. This global footprint enables the company to fulfill large-scale orders while maintaining supply chain resilience, a critical factor as electric aviation moves from prototype to production.

The company’s Fremont, California headquarters houses both R&D and MWh-scale manufacturing, allowing for rapid iteration and deployment. This dual capability is increasingly valuable as aerospace firms seek suppliers who can deliver both innovation and volume.

Market Signals and Industry Implications

The global unmanned systems market, valued at $26.6 billion in 2024, is projected to reach $48.3 billion by 2030, with UAS accounting for more than half of that growth. Defense and commercial sectors are driving adoption, particularly in North America, which contributed over 45% of global UAS revenue last year.

Amprius’ repeat order suggests that battery performance is becoming a decisive factor in platform selection. As UAS manufacturers push for longer range, faster recharge cycles, and reduced weight, suppliers like Amprius are poised to shape the trajectory of electric aviation.

A Quiet Power Shift in Aerospace

While propulsion headlines often focus on hydrogen or hybrid-electric systems, the steady advancement of silicon anode batteries may prove equally transformative. Amprius’ technology enables incremental gains in endurance and payload without requiring radical airframe redesigns, making it attractive for retrofit and new-build programs alike.

For aerospace professionals tracking the evolution of electric flight, Amprius’ latest deal offers a glimpse into where the market is headed: toward scalable, high-density energy solutions that meet the rigorous demands of aerial operations.