Amprius Technologies announced a manufacturing partnership with Nanotech Energy, a US-based developer of lithium-ion battery technology.
The agreement establishes a domestic production pathway for Amprius’ silicon-anode lithium-ion cells, supporting applications across electric vehicles (EVs), defense, aerospace, and other mission-critical markets where performance, reliability, and supply-chain security are key requirements.
Nanotech Energy becomes Amprius’ first US-based manufacturing partner, expanding the company’s ability to produce high-performance cells domestically in alignment with sourcing and compliance requirements outlined in the National Defense Authorization Act (NDAA).
The partnership supports Amprius’ strategy to scale silicon-anode cell production while maintaining a U.S. supply chain for customers with stringent qualification and security standards.
As part of the collaboration, Amprius and Nanotech have refined the design and manufacturing process for the Amprius SA128 silicon-anode cell. The cell is produced in a 21700 cylindrical format with a rated capacity of 6.8 Ah and an energy density of 320 Wh/kg, characteristics relevant to EV platforms and other applications requiring high-energy density in a standardized form factor.
The addition of US-based contract manufacturing strengthens Amprius’ manufacturing-light model by extending its footprint across both Asia and the United States. This approach increases total global capacity beyond 2.0 GWh and positions the company to support growing demand across EVs, industrial, commercial, and defense sectors.
Filed Under: Batteries, Technology News