Amprius Technologies, Inc. has delivered its SiCore® silicon-anode battery cells from its Fremont, California, pilot production line to several advanced drone and unmanned aerial vehicle (UAV) customers. The shipments include 450 Wh/kg high-energy cells to Airbus subsidiary AALTO and balanced energy-and-power cells to other manufacturers supporting both tactical and commercial drone missions.
Prototype SiCore cells produced at the Fremont facility play a key role in customer qualification, helping to accelerate the transition from development to operational deployment. Recent deliveries to AALTO and other UAV developers are intended to support high-altitude and long-endurance flights, where energy density and weight reduction are critical performance factors. The 450 Wh/kg SiCore cells are designed to enable extended mission durations, including high-altitude pseudo-satellite (HAPS) applications.
“Amprius’ SiCore cells represent a major advancement in energy performance, supporting the ultra-lightweight, long-endurance requirements of our high-altitude operations,” said Pierre-Antoine Aubourg, chief technology officer at AALTO. “Their silicon anode technology has already enabled Zephyr to operate in the stratosphere overnight for months at a time, an unprecedented milestone in persistent flight. We look forward to working with Amprius as we qualify their next-generation cells to power the future of Stratospace innovation.”
“We are expanding our pilot production in Fremont to meet a strong increase from leading drone manufacturers,” said Dr. Kang Sun, CEO of Amprius Technologies. “Shipping our industry-leading SiCore cells to AALTO and other leading drone OEMs marks another key milestone in our commercial scale-up. From high-energy HAPS cells to balanced-performance drone batteries, we’re now delivering solutions that meet a wide range of advanced mission needs.”
Amprius’ Fremont headquarters houses its R&D lab, prototyping capabilities, and a pilot-scale manufacturing line where the SiCore platform was first developed and validated. In addition to Fremont’s rapid development environment, the company is scaling its global supply chain through contract manufacturing agreements, securing more than 1.8 GWh of capacity—including a strategic partnership in South Korea—to support broader adoption of its battery technology across aerospace, defense, and electric mobility markets.
Source: Amprius Investor Relations
