Israeli battery developer StoreDot has announced the completion of its first prismatic XFC battery cells. They use silicon-based anode technology and are intended for electric vehicles. Prismatic cells have become the form factor of choice for a growing number of electric vehicle manufacturers in recent years.
Volume production planned for 2024
XFC stands for “eXtreme Fast Charging” and refers to the ability of the cells to reach a charging speed of five minutes for the reach of 100 miles, corresponding to approximately 161 kilometers, at battery pack level. According to StoreDot, the company is well on its way to achieving volume production of the prismatic cells by the end of 2024. As StoreDot points out, the technology transfer from pouch cells to prismatic cells and the integration of silicon into the anode technology has not been not trivial. Challenges included swelling of the silicon anodes and management of high currents.
Technological limits not yet exhausted
By continuing to improve the technology, StoreDot aims to reduce charging times to four and three minutes per 100 miles by 2026 and 2028, respectively. Furthermore, the company believes it is possible to increase cell capacity to up to 170 ampere-hours and volumetric energy density to more than 700 watt-hours per liter.