Author:
Ally Winning, European Editor, PSD
Date
12/13/2022
PDF
StoreDot’s extreme fast charging (XFC) batteries for EVs have been successfully validated by an independent battery lab
A lot of the content in this column concerns batteries. The reason for that coverage is that more advanced batteries are essential to the progress of many technologies, especially those that will cut our dependence on carbon-based energy. Any entity that can make batteries charge faster, hold more energy, manufacture them more cheaply, or make batteries that don’t use rare minerals will have hit the jackpot commercially. Correspondingly, there are researchers all over the world trying to solve these problems. Many of these groups have featured on this page over the last year or so, but almost all of them were at very early stages of progress and nowhere near commercialization.
Today’s article is different. Israeli company StoreDot are far further into the research phase with working samples and will be looking to take its technology to market initially in 2024. The company’s extreme fast charging (XFC) batteries for EVs have been successfully validated by independent battery lab Shmuel De-Leon Energy, who subjected production ready XFC batteries to a series of in-depth tests. The tests confirmed the technology’s viability and its fast charging and high-energy performance. The program covered energy density, charging rate, operating conditions and cycling. The results found the battery technology had an energy density of 300Wh/kg and 1000 consecutive XFC cycles.
Doron Myersdorf, CEO, StoreDot, “It is gratifying to have the commercialization validity and performance of StoreDot’s XFC and high energy technology verified by leading experts in the field. In addition, our technology continues to be trialled in the real-world by our automotive partners. Each goal reached and each test successfully passed further validates our confidence in our ability to deliver 100in5 battery technology by 2024 and 100in3 by 2028”.
He continued, "Next year our focus will be on establishing manufacturing partnerships and broadening our capabilities in additional battery form factors, whilst also reducing charging times further and pushing the boundaries of semi-solid and post-lithium technologies. We will build even stronger relationships with our global automotive partners and continue to expand globally”.
The 300Wh/kg, 700 Wh/l high energy density cells are also being shipped in pouch format to StoreDot's global automotive OEM partners for intense real-world testing. The cells exhibit ‘100in5’ EV performance, allowing drivers to charge 100 miles of range for each 5 minutes of charging.
StoreDot's '100in5' cells repeatedly charged from 10 to 80 percent capacity in just 10 minutes and then discharged for one hour before recharging. The EV cells achieved over 1000 of these charging cycles consecutively before degrading below the 80 percent of the original capacity threshold. No noticeable degradation occurred within the first 600 cycles. StoreDot will continue to develop the XFC technology in both cylindrical and prismatic form factors.
The semi-solid XFC battery technology replaces graphite in the cell’s anode with metalloid nano-particles and proprietary organic compounds to overcome major safety issues, battery cycle life, and swelling during the charging process. The technology also eliminates issues such as plating, thermal fluctuations and unstable charging.
