Advanced SF and SF+ cells highlight enhanced charging, energy density LFP and ESS products to be showcased at largest battery trade show in Korea
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 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
SK On’s battery portfolio, technologies to
be displayed in 4 exhibition zones
This year, SK On designed its exhibition booth in four
zones under the theme of “Speed On,” which signifies the company’s intention to accelerate its growth.
Following an aisle displaying miniatures of SK On
battery-powered vehicles, visitors can encounter a spherical LED in the
exhibition zone called “Global
ON.” The sphere will screen the information and
location of SK On’s global operation sites when
pressing a button,
In “Innovative Technology” zone, visitors can
check SK On’s top-notch technologies on cathode active
materials processing, such as non-washing method.
Residual lithium compound downgrades the performance
of cathodes as it forms by-products and unwanted gases when a battery is in
service. Water washing is typically used to remove the residual lithium
content, but the process worsens the performance of cathodes as it damages the
structure of cathode active materials. SK On was able to replace the process
with non-washing method that does not use water, thanks to its self-developed
special coating materials.
In “Application” zone, electric vehicles
equipped with SK On batteries will be on display. Visitors will be able to find
out specifications and features of SK On batteries that power the Genesis eG80
and the Kia EV9.
SK On’s energy storage system (ESS) will make its public debut in this
exhibition zone. A miniature of the company’s
next-generation DC Block, which is one-tenth the size of the actual product,
will be exhibited and present features like real-time monitoring of each cell
and module conditions.
SK On will also introduce its fire safety technologies
on ESS, such as a thermal propagation solution that won a North America ESS
fire safety certification and a liquid cooling method that minimizes the
temperature difference between cells and enhance efficiency in charging and
discharging.
In “Battery Portfolio Diversification” zone,
visitors can meet SK On’s battery products in various
form factor and chemistry. With battery products highlighting upgraded
features, such as SF+ Battery and Winter Pro LFP Battery, SK On’s prismatic and all solid-state battery products will be also
showcased.
“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.”
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