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StoreDot achieves 1000 cycles of extreme fast-charging in its EV battery cells

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Israeli battery startup StoreDot has conveyed the superior performance of its extreme fast charging battery cell technology by delivering cells that have exceeded 1000 cycles in production ready EV form factor.

The 300Wh/kg, 700 Wh/l high energy density cells are being shipped in pouch format to StoreDot's global automotive OEM partners for intense real-world testing. The cells exhibit the promised '100in5' EV performance, allowing drivers to charge consecutively 100 miles of range for each 5 minutes of charging, according to the company.

StoreDot's '100in5' cells were 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 extreme charging cycles consecutively before degrading below the 80 percent of the original capacity threshold.

StoreDot further claims that that no noticeable degradation occurred within the first 600 cycles in which the cells were consecutively fast charged between 10 to 80 percent.

Speaking on the development, Yaron Fein, Vice President R&D, 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 percent in ten 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 ever 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".

Yaron further added, "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 percent of its original capacity".

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

Author : Dhiyanesh Ravichandran
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