The web page https://insideevs.com/hyundai-kona-electric-two-battery-options-210-mile-range/ states:
"The long-range Kona will come with a 64 kWh battery"
"Interestingly, Hyundai is using LG Chem as one of its powertrain suppliers. According to Gas2, the Kona is speculated to feature the same...