Rimac Technology, a subsidiary of the Rimac Group specializing in automotive components, has introduced a revolutionary solid-state battery pack for electric vehicles. At the IAA Mobility event on Monday, the Croatian company showcased production-ready solid-state batteries, along with new hybrid and Evo formats, and next-generation e-axles capable of delivering exceptional torque performance.
Developed in partnership with ProLogium and Mitsubishi Chemical Group, the solid-state battery system aims to push the limits of energy density and safety. Rimac’s ‘Next-Gen’ battery is believed to offer a 100 kWh capacity and an impressive energy density of 260 Wh/kg. Notably, it can charge from 10% to 80% in just 6.5 minutes using a fast charger. The solid-state technology promises to deliver lighter weight and enhanced safety compared to conventional lithium-ion batteries. While many rivals are still presenting early-stage concepts, Rimac asserts that its solution is ready for production and will be offered alongside the company’s Evo Battery and the Hybrid Battery platform.
The Evo battery platform, set to launch in mid-2026, is a practical solution built around widely used 46XX cylindrical cells and housed in a cutting-edge thermoplastic composite casing. It offers a 100 kWh capacity, though with a slightly lower energy density of 213 Wh/kg. With fast charging, the battery can be recharged from 10% to 80% in under 16 minutes.
As part of its drivetrain advancements, Rimac revealed its latest SINTEG 300 and 550 e-axles, capable of delivering up to 360 kW of power with torque density exceeding 90 Nm/kg. These units are small enough to fit into compact hot hatches but pack enough punch for larger SUVs. However, the real highlight was the massive dual-motor XXL e-axle, generating over 11,000 Nm of torque and set to enter series production in 2026.
Rimac also introduced a centralized electronics architecture powered by NXP processors, designed to merge multiple ECUs into a single domain controller. This approach reduces overall weight, streamlines wiring, and supports over-the-air updates.
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