Korea Business News Agency - NSP NEWS AGENCY.

Advanced SF battery (Photo = SK on)

(Seoul=NSP NEWS AGENCY) = SK On, a leading global battery manufacturer, announced today it will showcase battery cells highlighting advanced fast-charging solutions along with various products demonstrating its latest R&D achievements at the upcoming battery exhibition in Seoul.

The Advanced SF and SF+ batteries will be among the key exhibition items from SK On at InterBattery 2024, South Korea’s largest battery trade show that will take place at Coex Convention & Exhibition Center in Seoul from March 6 to 8.

The original SF (Super Fast) Battery first introduced in 2021 was a high-nickel battery that can be charged from 10 percent to 80 percent in just 18 minutes. The Advanced SF Battery is an upgraded version of the SF Battery, increasing the energy density by 9 percent, while maintaining the same fast-charging time of 18 minutes. Higher energy density means that a battery can store a larger amount of energy, leading to further driving range on a single charge.

The Advanced SF Battery is a result of SK On’s continuous effort to boost its self-developed quick-charging technologies. The charging speed of battery is determined by the distance lithium ion must travel and its speed. Generally, high energy density comes with high anode resistance when charging, which leads to longer charging time as the speed of lithium-ion transport slows down.

SK On managed to shorten the transport distance of lithium ions with the application of a special coating method that drastically lowers the anode resistance and also with an anode alignment process. For the development of the Advanced SF Battery, SK On also utilized an optimized fast-charging protocol with analytics solutions designed to maximize the charging speed for batteries.

The SF+ Battery, another variant of the SF Battery, boasts even quicker charging time than the original: 15 minutes. SK On was able to reduce the transport distance of lithium ions, while increasing their movement speed by applying high-capacity silicon with low-resistance graphite on the self-developed dual layer structure.

At InterBattery 2024, SK On will also showcase the Winter Pro LFP Battery underscoring its low-temperature performances. Generally, a LFP battery suffers 50~70 percent drop in driving range it can offer at a low temperature (-20℃). However, compared to the existing conventional LFP, the Winter Pro LFP Battery extends the charging and discharging capacity by 16 percent and 10 percent, respectively, while increasing the energy density by 19 percent.

“Visitors will be able to find out our top-notch R&D capabilities through the exhibitions,” a SK On spokesman said. “SK On will continue developing innovative technologies and diversifying product portfolios to meet various needs of the customers.”

By Seung-chul Kim(sckim@nspna.com)

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