Amprius Technologies

Amprius Technologies is a battery technology company founded in 2008 in Fremont, California, commercializing silicon-anode battery research originating at Stanford University. The company addresses the energy-density and charging-speed limitations of conventional lithium-ion cells for applications where weight and range are critical, such as unmanned aircraft and electric vehicles.

Amprius manufactures SiCore battery cells that replace graphite anodes with a proprietary silicon nanowire structure, enabling higher gravimetric and volumetric energy density and faster charge rates. The cells are supplied to manufacturers of unmanned aerial systems, electric aviation platforms, light electric vehicles and robotics, with production facilities in Fremont and GWh-scale manufacturing partnerships in Asia.

1. Silicon nanowire anode: proprietary nanostructured silicon replaces graphite to raise energy density.

2. SiCore cell line: standardized high-energy cells for aviation, EV and robotics applications.

3. Fast charging: cell design supports rapid recharge without significant capacity loss.

4. High payload capacity: lighter batteries extend flight time and range for UAS platforms.

5. Scaled manufacturing: MWh-scale production in California with GWh-scale partnerships in Asia.

6. Aerospace qualification: cells used in specialized military and high-altitude programs.