Charged EVs | SK On unveils upgraded fast-charging EV battery cells at Seoul trade show

Battery producer SK On is showcasing new fast-charging battery cells at this week’s InterBattery 2024, a battery commerce present in Seoul, South Korea.

The Superior SF and SF+ batteries are amongst a number of new applied sciences that SK On is displaying on the present. The unique SF (Tremendous Quick) battery, launched in 2021, was a high-nickel battery that may theoretically be charged from 10 p.c to 80 p.c in as little as 18 minutes (real-world charging velocity relies on many elements). The Superior SF Battery is an upgraded model of the SF Battery that options 9 p.c larger vitality density.

As SK On explains, the nominal charging velocity of a battery is set by two issues: the space lithium ions should journey, and the switch velocity. Usually, excessive vitality density comes with excessive anode resistance when charging, and thus slower ion transport. SK On managed to shorten the transport distance of lithium ions by making use of a particular coating technique that dramatically lowers the anode resistance.

The SF+ Battery, one other variant of the SF Battery, boasts a fair faster nameplate charging time: quarter-hour. SK On was capable of cut back the transport distance of lithium ions, whereas rising their switch velocity, by making use of high-capacity silicon with low-resistance graphite on the dual-layer construction.

Supply: SK On



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