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Amprius Technologies, Inc. has shipped its SiMaxx™ A-Sample EV cells to the United States Advanced Battery Consortium LLC (USABC). The cells aim to meet the advanced performance and cost objectives for electric vehicles set by USABC. These cells are specifically engineered to tackle key EV challenges, such as range anxiety and the need for faster charging.
Key Highlights:
- The A-Sample EV cell achieved 360 Wh/kg specific energy, surpassing USABC’s target of 275 Wh/kg.
- Cells can charge to 90% in just 15 minutes, exceeding the USABC goal of 80%.
- Amprius continues its collaboration with USABC, progressing towards 1000 charge cycles.
- Shipment marks a milestone in the $3 million USABC contract for low-cost, fast-charge silicon nanowire batteries.
- Technical engagements with multiple automotive OEMs have been ongoing.
Amprius’ internal testing of the A-Sample EV cell demonstrated impressive metrics, achieving a specific energy of 360 Wh/kg at the beginning of life. This performance surpasses the USABC’s target of 275 Wh/kg at end-of-life, showcasing a significant leap in energy efficiency. Additionally, these cells can charge up to 90% of their rated energy in just 15 minutes, exceeding the target set by USABC to reach 80% in the same time frame. The company remains optimistic about achieving 1000 charge cycles based on current progress.
“We look forward to USABC validation of the A-sample cell performance towards showcasing the unique advantages of Amprius cells in electric vehicles,” said Dr. Kang Sun, CEO of Amprius Technologies. “This is another important battery technology development milestone at Amprius after we successfully launched high-performance silicon anode battery business in aviation and light vehicle markets. We believe our batteries are well-positioned to support all electric mobility markets. With their superior energy and power performance, fast charging, wide operating temperature range, and safety features, Amprius is continuing to transform the EV sector and other electric mobility segments as we scale toward high-volume manufacturing.”
The shipment of the A-Sample EV cells to USABC was successfully completed in September, meeting the final milestone under the $3 million technology development contract awarded by USABC in May 2022. The contract focuses on creating low-cost, fast-charging silicon nanowire batteries. The successful delivery paves the way for further sampling and evaluation by automotive manufacturers as Amprius continues to refine its technology.
USABC, a subsidiary of the United States Council for Automotive Research LLC (USCAR), works closely with Ford, General Motors, and Stellantis under a cooperative agreement with the U.S. Department of Energy (DOE). Its mission is to develop electrochemical energy storage technologies that advance the commercialization of next-generation electrified vehicles. USABC’s projects are guided by both mid- and long-term goals to ensure sustained progress.
For more information, visit the Amprius investor relations website at ir.amprius.com.
About Amprius Technologies, Inc.
Amprius Technologies, Inc. is a leading manufacturer of high-energy, high-power lithium-ion batteries, producing the industry’s highest-known energy density cells. The company’s SiMaxx™ batteries deliver up to 450 Wh/kg and 1,150 Wh/L, with third-party validation of 500 Wh/kg and 1,300 Wh/L. In 2024, Amprius introduced the SiCore™ platform, expanding its capabilities to serve more customer applications. Headquartered in Fremont, California, Amprius also maintains an R&D lab and a MWh-scale manufacturing facility. For further details, visit amprius.com.
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