https://electrek.co/2016/02/18/mercedes-select-a-li-ion-battery-c...

https://electrek.co/2016/02/18/merc...r-for-its-upcoming-line-of-electric-vehicles/

"SK Innovation, a battery cell maker part of the South Korea-based chemical and energy conglomerate SK, confirmed (via GreenCarCongress) that it has been selected as the supplier of battery cells for Mercedes’ upcoming line of electric vehicles."
"Mercedes will build its own battery packs with the cells supplied by SK. For its only all-electric vehicle, the Mercedes B-Class EV, the automaker was outsourcing its battery pack manufacturing to Tesla, which itself was sourcing the cells from Panasonic."

"Last year, SK more than doubled its capacity at its Seosan battery plant in Korea, where production is now running 24 hours a day, 7 days a week. The company expects to have to expand its manufacturing volume due to future and current projects with customers including Daimler’s Mercedes."

https://chargedevs.com/newswire/kia-soul-ev-to-use-new-sk-innovation-battery-cells/

"
Kia’s new Soul EV will use lithium-ion polymer battery cells supplied by SK Innovation, the result of a three-year joint development program between the two companies.

The SK pack has 192 cells in eight modules, for a total capacity of 27 kWh. It boasts an impressive energy density of 200 Wh/kg, and is expected to give the Soul EV a range of around 124 miles. Kia predicts a charging time of 25 minutes (100 kW DC), 33 minutes (50 kW DC) or up to five hours (6.6 kW AC).

The cells use nickel-rich NCM (nickel-cobalt-manganese) cathode material, and an electrolyte additive designed to prevent degradation of battery performance at both low and high temperatures.

The battery pack features a heating system that warms up the battery while the car is plugged into the grid, as well as an overcharge protection device that cuts the high-voltage circuit if swelling should occur due to overcharging."