StoreDot achieves milestone of 1000 cycles of extreme fast charging battery cells ready for electric vehicle (EV) integration

StoreDot, the pioneer of extreme fast charging battery technology for electric vehicles, has proven the superior performance of its extreme fast charging (XFC) battery cell technology. It has delivered cells that have exceeded 1000 cycles in production-ready electric vehicle (EV) form factor.

The 300Wh/kg, 700 Wh/l high energy density cells are being shipped in pouch format to StoreDot’s global automotive original equipment manufacturer (OEM) partners for intense real-world testing. The cells exhibit the promised ‘100in5’ EV performance, allowing drivers to charge consecutively 100 miles (161km) of range for every five minutes of charging.

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StoreDot’s ‘100in5’ cells repeatedly charged from 10 to 80 per cent capacity in just 10 minutes and then discharged for one hour before recharging. The EV cells achieved over 1000 of these extreme charging cycles consecutively before degrading below 80 per cent of the original capacity threshold.

No noticeable degradation occurred within the first 600 cycles in which the cells were consecutively fast charged between 10 to 80 per cent.

This is impressive and shows what the future of batteries and charging will be like in the electric vehicle space. Plus, it should squash any issues people might have with charging anxiety and battery lifespan. 

This landmark milestone follows StoreDot’s announcement in March that it had set a world record of 1200 cycles for its extreme fast charging cells in prototype format. StoreDot continues to develop the XFC technology in both cylindrical and prismatic form factors with updates expected soon on shipping those to OEM partners.

Yaron Fein, StoreDot Vice R&D president, said: “The latest tests represent a landmark not just for StoreDot, but also the global battery industry and the entire sustainable mobility ecosystem. 

“Our product performance goal for 2022 was to reach 1000 cycles of consecutive extreme fast charging of 10 to 80 per cent in 10 minutes, with an energy density of at least 300Wh/Kg.

“I am delighted to announce that not only have we achieved our target but have also exceeded it and we already have in our labs enhanced formulation that allows us to show further improved performance. 

“This is the first time that cell performance of this magnitude has been achieved. The results stand testament to StoreDot’s relentless R&D drive, the enthusiasm of everyone in the company and to the extreme fast charging vision we share with our partners.

“When a lithium battery is charged and discharged once, it is called a cycle, and typically lithium battery capacity degrades quickly in fast charging cycles. Our silicon-dominant chemistry is different, allowing EV battery cells to charge for more than 1000 cycles before degrading the battery to 80% of its original capacity.”

StoreDot remains focused on delivering its hype-free technology roadmap to global automotive companies. This relentless development program extends far into the future, where the target is to deliver 100 miles (161KM) of range after just two minutes of charge within a decade.

Earlier this year, Polestar, the Swedish premium electric vehicle car brand, announced it was investing in StoreDot. As part of the strategic deal, Polestar is collaborating with StoreDot to explore adapting and applying their technology to proof-of-concept Polestar cars. 

Test cases already being explored include customising StoreDot’s cell technology for Polestar cars, to enable faster charging and improved circularity.

Ian Osborne
Ian Osborne
Editor-in-Chief at ElectricDrives

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