Amprius Technologies, Inc.AMPX
What Amprius Technologies, Inc. does.
Amprius Technologies, Inc. develops, manufactures and markets lithium-ion batteries for mobility applications, including aviation, ground and marine vehicles. Our disruptive silicon anode technology is intended to enable batteries with high energy density, high power density and fast charging capabilities over a wide range of operating temperatures. This results in our batteries providing superior performance compared to conventional graphite lithium-ion batteries. Our silicon anodes are a direct drop-in replacement of the graphite anode in traditional lithium-ion batteries, and our manufacturing processes leverage the manufacturing processes for conventional lithium-ion batteries and the related supply chain.
Currently, our batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems or “UAS”, such as drones and high-altitude pseudo satellites or “HAPS”. We believe our proprietary technology has the potential for broad application in electric transportation. Our batteries and their performance specifications have been tested and validated for application by various customers, including AALTO Airbus, AeroVironment, BAE Systems, Kraus Hamdani Aerospace, Nokia Drone Networks, Nordic Wing, Teledyne FLIR and the U.S. Army. Our total customer engagements since inception grew to over 500 customers with shipments to hundreds of customers during the year ended December 31, 2025. In addition, from our inception through December 31, 2025, we have shipped over 4.2 million battery cells, which have enabled mission critical applications. Our proprietary silicon anode structures, battery cell designs and manufacturing processes are protected by our portfolio of patents, trade secrets and know-how developed over 15 years of research and development.
Revenue and profit, by fiscal year.
| Fiscal year | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Revenue | — | $2.8M | $4.4M | $9.1M | $24.2M | $73.0M |
| Net income | — | -$9.9M | -$17.3M | -$36.8M | -$44.7M | -$44.0M |
| Free cash flow | — | -$8.6M | -$15.4M | -$43.1M | -$36.6M | -$35.5M |
More on AMPX.
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Figures from Amprius Technologies, Inc.'s filings with the U.S. SEC, standardised automatically; prices are end-of-day closes. Not financial advice.