Amprius Technologies, Inc. develops manufactures and markets lithium ion batteries that use a silicon anode for mobility applications. The company focuses on aviation ground and marine sectors with an emphasis on unmanned aerial systems drones and high altitude pseudo satellites. Its silicon anode technology is a drop in replacement for the graphite anode in conventional lithium ion cells and enables higher energy density higher power density and faster charging. Amprius leverages its proprietary silicon anode material system which was created through over fifteen years of research and development. The batteries are produced through a network of global contract manufacturers and an exclusive supply agreement with Berzelius for silicon anode material in North America. The company also operates a pilot line in Fremont California that is being expanded to support prototype development and low volume production. Amprius holds a substantial patent portfolio protecting its silicon anode nanostructures electrolyte formulations and manufacturing processes. The business model centers on selling high performance battery cells to aerospace defense and commercial customers who require superior energy storage for mission critical operations.

Amprius Technologies, Inc. generates revenue primarily from the sale of its silicon anode battery cells under the SiCore and SiMaxx product families. The company sells batteries in pouch cylindrical and prismatic formats to customers who integrate them into unmanned aerial systems high altitude pseudo satellites electric vertical takeoff and landing aircraft and light electric vehicles. In addition to product sales Amprius receives income from engineering design services prototype development and recurring orders as customers qualify its cells for specific programs. The company’s revenue is diversified across multiple end users but a single customer accounted for twenty seven point one million dollars of total sales during the year ended December 31 2025. Amprius has shipped over four point two million battery cells since inception and reports access to annual production capacity exceeding two point zero gigawatt hours of SiCore cells through its global contract manufacturing network. The expansion of its Fremont pilot line supported by a Defense Innovation Unit contract further contributes to near term revenue growth by enabling rapid prototyping and small batch production. Licensing of its patented silicon anode technology is not currently a material revenue source but the company may pursue such opportunities as its portfolio matures.

Amprius Technologies, Inc. occupies a niche within the lithium ion battery market as a provider of silicon anode cells that deliver significantly higher energy and power performance than conventional graphite based batteries. Its SiCore batteries achieve up to four hundred fifty watt hours per kilogram which is roughly double the specific energy of market leading graphite cells and enable charge rates up to ten C with active cooling. Compared with silicon composite anode developers such as Sila Nanotechnologies Enovix and Group 14 Technologies Amprius emphasizes a drop in replacement approach that leverages existing lithium ion manufacturing lines and supply chains reducing integration risk for customers. The company’s competitive strengths include a robust intellectual property portfolio with over eighty granted patents and pending applications a proven safety record validated through nail penetration and air cargo testing and early adoption by tier one aerospace partners including AALTO Airbus BAE Systems AeroVironment and the U. S. Army. These factors allow Amprius to command premium pricing in aviation and defense segments while maintaining a clear technology lead over traditional battery suppliers.

Amprius Technologies, Inc. serves a diverse set of customers primarily in the aerospace defense and emerging electric mobility sectors. Its battery cells have been qualified and purchased by AALTO Airbus AeroVironment BAE Systems Kraus Hamdani Aerospace Nokia Drone Networks Nordic Wing Teledyne FLIR and the United States Army among others. The company reports that from inception through the end of 2025 more than five hundred distinct customers have tested and validated its SiCore and SiMaxx batteries for their applications with shipments reaching hundreds of customers during the fiscal year. While the customer base is broad a single large aviation customer contributed twenty seven point one million dollars of revenue in 2025 indicating a concentration of sales among a few strategic partners. In addition to direct sales Amprius engages in collaborative development programs with eVTOL manufacturers and light electric vehicle firms seeking high energy density storage solutions. The geographic reach includes customers located in the United States Europe and Asia reflecting the global nature of the contract manufacturing network and the international demand for advanced battery technology.