Amprius Technologies manufactures silicon‑anode lithium‑ion cells that deliver up to 450 Wh/kg energy density—about twice that of conventional graphite cells—while supporting fast charging (0‑80% in ~6 min), high discharge rates, and a wide temperature range. Their SiCore platform combines a four‑layer elastic silicon nanostructure with scalable pouch and cylindrical formats, providing high‑energy, high‑power batteries for electric aircraft, vehicles, drones, and AI‑driven robotics.
Funding
Funding not disclosed
Founders
Product
Problem
Conventional lithium‑ion batteries based on graphite anodes limit energy density, resulting in short range, long charging times, and heavy weight for electric aviation, vehicles, and robotics. These constraints hinder performance, payload capacity, and adoption of electric mobility solutions.
Solution
Amprius Technologies manufactures silicon‑anode lithium‑ion cells that achieve up to 450 Wh/kg energy density—approximately double that of traditional cells—while delivering high power output and fast charging (0 % to 80 % in six minutes). Their SiCore platform uses a four‑layer elastic silicon nanostructure to manage expansion stress, enable long cycle life (up to 1,300 full‑depth cycles), and operate across a wide temperature range (‑30 °C to 60 °C). The company produces a portfolio of pouch and cylindrical cells optimized for balanced energy/power, high‑energy, or high‑power designs, and scales production through MWh‑level facilities in the U.S. and GWh partnerships in Asia, providing commercial‑grade, high‑performance batteries for demanding applications.
Target Audience
Primary customers are manufacturers of unmanned and manned electric aircraft, light electric vehicles (e‑bikes, scooters, motorcycles), passenger and commercial electric cars, and AI‑driven robotics that require high‑energy, lightweight, fast‑charging battery solutions.
Features
- Silicon‑nanostructure anode architecture that stores up to ten times more lithium than graphite, delivering up to 450 Wh/kg energy density
- Four‑layer cell design with elastic interior to mitigate expansion stress and reduce side reactions, extending cycle life to 1,300 full‑depth cycles
- Ultra‑fast charging capability (0 %‑80 % in ~6 min) and high discharge rates (up to 10 C continuous) for power‑intensive workloads
- Wide operating temperature range (‑30 °C to 60 °C) with proven safety certifications (UN38.3, military nail‑penetration test)
- Product family includes balanced, high‑energy, and high‑power pouch and cylindrical cells to match specific application requirements
- Scalable manufacturing capacity: MWh‑scale plant in Fremont and GWh‑scale contract partners in China, with plans for expansion in Asia and Europe