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Next-generation lithium-ion batteries with silicon anode platform
Amprius Technologies manufactures high-energy-density lithium-ion batteries using proprietary silicon anode technology. The company produces the SiMaxx and SiCore product lines, with the SiCore 450 Wh/kg cell delivering up to 80% more energy than conventional graphite-anode cells. Primary markets include aviation, defense, and electric mobility platforms. Amprius operates with 1.8+ GWh of secured contract manufacturing capacity through global partners including South Korean manufacturers.
Active products
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Top-rated product
SiCore® SA88 Lithium-Ion Battery
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Company facts
- HQ
- Fremont, US
- Website
- amprius.com
Trusted by
- Aviation and defense customers (unnamed, in qualification)deployed 2025ir.amprius.com ↗
Milestones
Launched SiCore 450 Wh/kg lithium-ion battery with 950 Wh/L energy density for aviation and defense applications
Announced manufacturing partnership with South Korean battery manufacturer for SiCore cell production
Announced breakthrough SiCore cell chemistry for electric mobility applications
Press coverage
- Amprius Launches 450 Wh/kg SiCore Lithium-Ion Battery Targeting Aviation and Defense
DroneLife · May 2025
- Amprius Unveils High-Performance Lithium-Ion Battery for Demanding Aviation Applications
Unmanned Systems Technology · May 2025
- Amprius Launches 450 Wh/kg SiCore Batteries for Electric Aircraft
Aviation International News · Apr 2025
- Amprius launches SiCore 450 Wh/kg high-energy battery cell
Charged EVs
- Amprius signs manufacturing deal to make its Li-ion batteries in South Korea
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Active products by Amprius Technologies
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