Amprius Technologies stands at the forefront of innovation, specializing in advanced silicon anode lithium-ion batteries tailored for drones and robotic applications.
Our batteries boast the highest energy density available in the market, providing a seamless alternative to traditional solutions while extending operational time by as much as 200%.
the SiMaxx™ batteries we offer achieve energy densities of up to 450 Wh/kg and 1,150 Wh/L, with third-party validation confirming figures of 500 Wh/kg and 1,300 Wh/L. In response to increasing market needs, we introduced the SiCore™ platform in 2024, broadening our application capabilities.
Our cutting-edge silicon anode lithium-ion batteries are engineered in the united States and have been chosen by the U.S. Department of Defense, along with industry giants like AALTO Airbus, BAE Systems, AeroVironment, and Teledyne FLIR.
SiMaxx: The Pinnacle of Battery Technology
Our SiMaxx batteries utilize a patented nanowire structure in the silicon anode,resulting in high-energy-density batteries that outperform conventional graphite cells. These batteries can achieve up to 450 Wh/kg in gravimetric energy density and 1,150 Wh/L in volumetric energy density,with third-party validation confirming 500 Wh/kg and 1,300 Wh/L. They can reach 80% charge in as little as six minutes and function effectively in temperatures ranging from -30°C to 55°C.
SiCore: Next-Generation Battery Solutions
The SiCore batteries feature a proprietary silicon anode material system that delivers extraordinary power-to-energy ratios, considerably exceeding the performance of current graphite cells. This innovative cell chemistry provides high energy density of up to 400 Wh/kg,supports 10C charge/discharge rates,and boasts a long cycle life,with up to 1,200 cycles at full depth of discharge.
Strategic Manufacturing Approach
Our cutting-edge pilot line, combined with global contract manufacturing partnerships and an upcoming GWh-scale production facility, positions us to deliver high-performance silicon anode batteries at scale.
Headquartered in Fremont, California, we operate an R&D lab and a manufacturing facility capable of MWh-scale production for silicon anodes and cells. to meet rising customer demand, we have secured up to 800 MWh of pouch cell capacity and over 1 GWh of cylindrical cell capacity annually through strategic partnerships.Collaborating with multiple manufacturers allows us to scale production quickly while minimizing risks such as delays and supply chain issues.
Additionally,we have signed a lease for a GWh-scale manufacturing site in Brighton,Colorado,designed for versatility. With moast of the design completed, this facility offers strategic access to transport networks, a skilled workforce, ample room for future growth, and proximity to key markets.
amprius has garnered numerous accolades for our innovative battery technology, including:
- Fast Company’s World’s Most Innovative companies of 2024
- 2024 CleanTech Breakthrough Battery Technology Company of the Year Award
- 2024 International Battery Seminar – Best of Show New Product award
- Fast Company 2023 Innovation by Design Award Finalist
- 2023 International Battery Seminar – Best of Show New Product Award
- Fast Company World Changing Ideas 2022 Finalist
- Airbus Defence and Space 2021 Innovative Supplier of the Year Award
High-Energy Battery Technology for UAVs and Unmanned Systems
our patented silicon anode technology employs a unique manufacturing process that yields ultra-high energy density batteries. By utilizing innovative silicon structures, we have effectively tackled the swelling issue that has historically limited silicon adoption. Our cells represent the only commercially available 100% silicon anode, capable of storing up to ten times more lithium than traditional graphite cells.
Our advanced silicon anode batteries also exhibit excellent cycle life and rapid charging capabilities. We have consistently demonstrated 80% charging in under six minutes, a performance validated by self-reliant labs and major aerospace companies.
Our innovative battery design significantly enhances the performance and efficiency of UAVs, HAPS, LEVs, EVs, eVTOLs, and unmanned ground vehicles. The unparalleled cell performance is paving the way for advancements in electric mobility, propelling both manned and unmanned applications in aviation, aerospace, defense, and robotics to new heights.
Amprius Extreme Fast-Charge Demonstration
An extreme fast charge rate of 0-80% state of charge in under six minutes has been demonstrated with Amprius’ 370 Wh/kg silicon anode battery:
Learn more: High Energy Density Drone Batteries
Next-Gen Silicon Anode Batteries for Drones and Robotics
Our high-performance lithium-ion batteries are perfectly suited for a variety of critical and commercial applications. Beyond extending flight duration and vehicle range,the rapid charging capability ensures quicker turnaround times for applications such as drone delivery,agricultural drones,surveying drones,long-endurance drones,and heavy-lift drones.
Amprius silicon anode lithium-ion batteries outperform traditional graphite anode batteries across several critical metrics:
(1) Other than cycle life, based on survey of 18650 technical datasheets (ex. Panasonic NCR18650G), Sony VTC6 technical datasheet, iFixit reports on iPhone and Samsung batteries and Y. Sun et al.: Li-ion Battery Reliability – A case Study of the Apple iPhone. For cycle life, based on Shmuel De-leon: Li-Ion NCA/NMC Cylindrical Hard Case Cells Market 2021. (2) Includes both released and unreleased products with energy and power cell designs. (3) Based on Amprius’ SiMaxxTM High Power cells.
“Unmatched Technology” – A Glimpse into Amprius Manufacturing
A tour of the Amprius facility in Fremont, CA, showcasing their manufacturing processes, battery testing, and future initiatives:
