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Recently, Polestar integrated a silicon anode battery from Storedot into a prototype of the 5-EV, showcasing impressive charging capabilities. This innovative battery could be charged with up to 370kW, exceeding the current standards for EVs. As a result, the 77kWh battery was able to be charged from ten to eighty percent in just ten minutes.
Polestar detailed the test conducted with the prototype car in a controlled laboratory setting, noting that the vehicle achieved a range of 320 kilometers in only ten minutes. Unlike traditional lithium ion batteries with graphite anodes, this battery pack utilizes 'silicon dominant cells' with a silicon anode. During charging, the car maintained a steady charging speed of 310kW, eventually reaching over 370kW.
These charging speeds surpass those of existing EV models, such as the Lucid Air with a maximum of 350kW and the Porsche Taycan with a maximum of 320kW. Storedot's innovative battery technology is able to sustain high charging speeds for extended periods, as observed by Polestar.
Polestar described the test as a proof-of-concept to demonstrate the feasibility of incorporating this technology into future Polestar models. While the timeline for integrating these batteries into Polestar EVs remains unclear, Storedot suggests that silicon anodes could also be utilized in batteries with capacities surpassing 100kWh. These batteries would offer energy densities comparable to those with NMC cells, eliminating the need for specialized cooling systems.
English (US)