Amprius Technologies, Inc., a leading innovator in next-generation lithium-ion batteries with its Silicon Anode Platform, announced it has shipped SiMaxx™ A-Sample EV Cells to the United States Advanced Battery Consortium LLC (USABC). USABC’s mission is to develop advanced battery cell and system technologies to meet next-generation performance and cost goals for electric vehicles. The shipped cells address EV users’ key challenges, such as range anxiety and the need for shorter charging times.
Amprius’ internal testing of its A-Sample EV cells has shown strong performance, achieving a specific energy of 360 Wh/kg at the beginning of life—well above the USABC performance target of 275 Wh/kg at the end of life. The cells also demonstrated a power density of 1200 W/kg, offering a potential range increase compared to current commercial EV batteries. Notably, the A-Sample EV cells can recharge to 90% of their rated energy in just 15 minutes, exceeding the USABC target of 80% in the same timeframe. Early results suggest Amprius is progressing toward its goal of 1,000 charge cycles.
Amprius Technologies CEO Dr. Kang Sun stated, “We look forward to USABC validation of the A-sample cell performance towards showcasing the unique advantages of Amprius cells in electric vehicles,”
He further added, “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.”
Amprius delivered the A-Sample EV cells on schedule in September, marking the final milestone in the $3 million USABC technology development contract awarded to the company in May 2022 to create a low-cost, fast-charge silicon nanowire battery. Amprius believes this achievement paves the way for additional sampling and evaluation by automotive manufacturers.
USABC is a subsidiary of the United States Council for Automotive Research LLC (USCAR), the collaborative technology company of Ford Motor Company, General Motors, and Stellantis. Enabled by a cooperative agreement with the U.S. Department of Energy (DOE), USABC’s mission is to develop electrochemical energy storage technologies that advance the commercialization of next-generation electrified vehicle applications.
About Amprius Technologies, Inc.
Amprius Technologies, Inc. is a leading manufacturer of high-energy and high-power lithium-ion batteries, producing the industry’s highest-known energy-density cells. The company’s commercially available 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. Amprius expanded its product portfolio to include the SiCore platform in 2024, significantly enhancing its ability to serve additional customer applications. The company is headquartered in Fremont, California, where it maintains an R&D lab and a MWh-scale manufacturing facility for fabricating silicon anodes and cells. Amprius has secured over 500 MWh of contract manufacturing, which is available today to meet customer demand.
Source: Amprius