The high-nickel battery cell modules consist of ultra-long 56 cm cells with high energy density. According to Polestar, these cells were chosen due to "their superior battery cell technology that offers high performing chemistry, fast charging, efficient discharging and superior range".
SK On will begin delivering battery modules in 2025 – the year of the planned production debut.
56 centimeters is indeed extremely long. For comparison, the 4680, 4695, and 46120 round cells often mentioned in connection with Tesla or BMW, for example, have a diameter of 4.6 centimeters and are 8, 9.5, and 12 centimeters long, respectively. The partners did not disclose the diameter and other form factors of the ultra-long cells for the Polestar 5.
The CEOs of both companies emphasise the importance of the cooperation: “We are delighted to collaborate with Polestar on its top-tier EV model,” says Jee Dong-seob, CEO of SK On. “We will solidify our partnership with Polestar and create new opportunities through this agreement.”