Overview

• Rimac unveiled a solid‑state battery platform using ProLogium cells and Mitsubishi Chemical Group materials, presented as lighter, safer and more energy‑dense than its latest cylindrical packs.
• The company claims a 100 kWh pack can charge from 10% to 80% in about 6.5 minutes and deliver up to 850 kW discharge power, with a 540–907 volt architecture and strong cold‑weather retention.
• Technical details include pouch cells in a cell‑to‑pack layout with a 90/5/5 NMC cathode and 100% silicon anode, indirect refrigerant cooling, a 285‑liter package, and a mass of 384 kg versus 470 kg for Rimac’s cylindrical pack.
• Rimac also introduced compact SINTEG 300 and 550 e‑axles rated at 150–360 kW with headline metrics above 8 kW/kg power density, above 90 Nm/kg torque density and rotor speeds up to 25,000 rpm, plus a dual‑motor XXL axle targeting series production in 2026.
• The firm says solid‑state packs are slated to reach high‑performance vehicles in Q4 2027 as it scales Croatian manufacturing to tens of thousands of units per month, though independent validation and higher‑power public fast charging will be needed to realize claimed benefits.