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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 components). The Superior SF Battery is an upgraded model of the SF Battery that options 9 p.c better vitality density.
As SK On explains, the nominal charging velocity of a battery is decided by two issues: the space lithium ions should journey, and the switch velocity. Typically, 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 methodology that dramatically lowers the anode resistance.
The SF+ Battery, one other variant of the SF Battery, boasts a good faster nameplate charging time: quarter-hour. SK On was capable of cut back the transport distance of lithium ions, whereas growing 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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