Amprius Technologies, Inc.

Amprius Technologies, Inc. (NASDAQ: AMPX) develops, manufactures, and markets advanced lithium-ion batteries for mobility applications including aviation, ground, and marine vehicles. The company's website is www.amprius.com.

The company's core technology centers on proprietary silicon anode batteries that replace traditional graphite anodes with highly engineered silicon material, delivering approximately ten times the lithium storage capacity of graphite. This innovation enables batteries with significantly higher energy density, power density, and fast charging capabilities across wide operating temperature ranges. Amprius offers two primary product platforms: SiCore Generation 2 cells, developed in collaboration with Berzelius, which deliver energy densities up to 450 Wh/kg with cycle life reaching 1,400 cycles; and SiMaxx Generation 1 cells featuring proprietary nanowire anode technology designed to accommodate silicon expansion during charging.

The company's primary addressable markets include unmanned aerial systems and drones, high-altitude pseudo satellites, electric vertical takeoff and landing aircraft, light electric vehicles, and electric vehicles. Amprius has validated its batteries with over 500 customers since inception, including tier-one aerospace companies such as AALTO Airbus, AeroVironment, BAE Systems, Nokia Drone Networks, and Teledyne FLIR, as well as the U.S. Army. The company has shipped over 4.2 million battery cells enabling mission-critical applications.

As of December 31, 2025, Amprius had access through manufacturing supply agreements with global contract manufacturers, including participation in the Amprius Korea Battery Alliance, to annual production capacity exceeding 2.0 GWh of SiCore batteries in pouch, cylindrical, and prismatic formats. The company manufactures SiMaxx batteries at its Fremont, California facility and is expanding that location to increase pilot line capacity to 10 MWh, accelerated by a $14.8 million contract from the U.S. Government Defense Innovation Unit.

Amprius protects its technology through a robust intellectual property portfolio comprising 74 issued patents, 10 pending patent applications, and 10 registered trademarks, with patent protection extending through 2039. The company has been commercially producing batteries since 2018 and completed a business combination with Kensington Capital Acquisition Corp. IV in September 2022.