Amprius Technologies Unveils SiCore Cell Chemistry with Advanced Energy Density for High-Performance Applications

Credit: Amprius

Amprius Technologies, a Californian battery developer, has introduced its new SiCore cell chemistry, which boasts an energy density of 370 Wh/kg and discharge rates of up to 10C without cooling and 15C with active cooling.

The company’s Silicon Anode Platform is designed to “revolutionize high-performance electric mobility” by offering “unparalleled power-to-energy capabilities for high-demand applications.” With this breakthrough, Amprius aims to set new standards in high-performance battery technology, particularly for industries with demanding power needs.

Amprius has delivered six pre-production 10 Ah sample units to customers for testing in the fourth quarter of 2024, although it has not disclosed the identities of these customers. The company is targeting commercialization for the first quarter of 2025.

One confirmed customer, Teledyne FLIR, a producer of unmanned solutions for military and public safety, is particularly interested in the technology for its unmanned aerial systems (UAS). Tung Ng, Vice President of Unmanned Systems North America at Teledyne FLIR, commented: “Amprius’ new SiCore cell is positioned to deliver a transformative boost in power and energy for our unmanned aerial systems, extending mission durations while maintaining critical performance under demanding conditions.”

Dr. Ionel Stefan, CTO of Amprius Technologies, highlighted the significance of the SiCore cell: “This SiCore cell is a significant technical breakthrough for the industry, achieving a level of power-to-energy ratio that we believe has not been seen at such high-energy density.” Amprius’ innovative approach optimizes the silicon anode composition without compromising other key performance metrics, redefining the trade-off between power and energy.

Amprius Technologies has made remarkable strides in battery development, with previous breakthroughs, including silicon nanowire battery technology, which offered an energy density of 360 Wh/kg and a rapid 15-minute charge to 90% capacity. In 2023, the company achieved a research milestone with a 500 Wh/kg energy density. These advancements have potential applications not only in drones but also in future electric vehicles.

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