Amprius ships 6.3Ah silicon-anode cylindrical cell to Fortune 500 company
Amprius began shipping high-energy SiCore 21700 silicon-anode cylindrical cells with stated cycle-life and drop-in compatibility targets.

Evidence notes
- Amprius shipped a 6.3Ah SiCore 21700 silicon-anode cylindrical cell to a Fortune 500 company.
- The cell delivers 315 Wh/kg, 800 cycles at 80 percent depth of discharge and drop-in compatibility for existing 21700 platforms.
Company context
Amprius Technologies develops high-energy-density silicon-anode lithium-ion batteries for aviation, mobility, robotics and other high-performance applications. Its robotics relevance comes from power systems used to extend endurance, reduce charging frequency and support higher-duty-cycle unmanned and robotic platforms.