Ampcera Inc., a prominent figure in the production of solid-state electrolytes and the advancement of next-generation solid-state batteries, has achieved a significant milestone in fast-charging technology. The company is pleased to announce that its all-solid-state battery (ASSB) technology has exceeded the U.S. Department of Energy’s (DOE) target of achieving an 80% charge in 15 minutes or less. This accomplishment is a crucial advancement in addressing the persistent issue of prolonged charging times for electric vehicles (EVs).
The breakthrough was made possible through Ampcera’s high-performance solid-state electrolyte materials, propelling ASSB technology beyond the DOE’s ambitious fast-charging standard. The innovative technology has demonstrated the capability to charge from 0 to 80% state of charge (SOC) in under 15 minutes at a peak C-rate of 4C. This milestone highlights the potential for widespread adoption of electric vehicles, addressing consumer concerns about lengthy wait times at charging stations.
Ampcera’s ASSB technology prioritizes extreme fast charging, with a focus on safety and efficiency. By employing IP-protected sulfide solid-state electrolyte materials, a high-capacity NMC cathode, and a silicon-based anode, the technology aims to achieve a high energy density goal of 400 Wh/kg. Furthermore, the absence of any liquid or semi-solid electrolyte in the ASSB ensures the highest levels of safety, particularly during rapid charging cycles.
The company’s lab-scale pouch cells exhibited less than 5% capacity decay after 300 cycles of repeated fast charging (4C peak C-rate), demonstrating the potential for a long cycle life of greater than 1000 cycles in commercial cells once fully developed. Ampcera’s Co-Founder and CEO, Sumin Zhu, emphasized the primary objective of introducing a commercially viable fast-charging ASSB technology to alleviate consumer charge anxiety associated with extended wait times at charging stations.
The concern over prolonged wait times at public charging stations, particularly in urban areas with limited at-home charging options, has been a significant barrier to the widespread adoption of electric vehicles. Ampcera’s commitment to addressing this challenge is reinforced by its plans to develop and commercialize fast-charging ASSB technology through strategic partnerships with industry leaders. The company was awarded a $2.1 million grant from the U.S. DOE’s Advanced Research Projects Agency-Energy (ARPA-E) as part of the EVs4ALL program, demonstrating its dedication to advancing the development and commercialization of all-climate, fast-charging ASSB technology.
It is important to note that achieving an 80% charge in 15 minutes or less is considered an extreme fast-charging goal for lithium batteries, as outlined by both the United States Advanced Battery Consortium (USABC) and the U.S. DOE. This significant achievement places Ampcera at the forefront of innovation in the electric vehicle industry, with a strong focus on sustainable energy solutions.
Ampcera Inc. is a U.S.-based pioneer and global leader in the development and commercialization of solid-state electrolyte materials and scalable manufacturing processes for next-generation solid-state batteries. With over 25 U.S. and international patents and patent applications safeguarding its core technologies, the company continues to lead the charge towards a sustainable energy future. For more information about Ampcera’s groundbreaking innovations, please visit www.ampcera.com.
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