Rimac Technology unveils new solid-state battery tech

by croatiaweek
September 8, 2025
in Business

(Photo: Rimac Technology)

Following a series of high-profile collaborations with leading carmakers including BMW Group, Porsche and CEER Motors, the Croatian company is now showcasing its latest breakthroughs at this year’s IAA Mobility in Munich.

The focus is firmly on three key areas – batteries, powertrains and electronics – with Rimac highlighting how its solutions are not only cutting-edge, but also ready for mass production at scale.

Rimac’s next-generation battery technology, developed with ProLogium and Mitsubishi Chemical Group, features solid-state cell technology that offers greater energy density, enhanced safety and lighter weight.

The Evo Technology platform, based on 46XX Gen2 NMC cells, introduces an advanced thermoplastic composite housing co-developed with Kautex Textron. It combines proven chemistry with improved packaging and cooling for the next wave of high-performance electric vehicles.

(Photo: Rimac Technology)

The Hybrid Technology platform, meanwhile, offers flexibility by supporting both high-energy and high-power applications. With scalable dimensions and interchangeable cell formats, it meets the demands of a wide range of hybrid solutions.

(Photo: Rimac Technology)

Rimac’s new SINTEG 300 and 550 eAxles set fresh industry benchmarks, delivering power densities above 8 kW/kg and torque densities beyond 90 Nm/kg. Their ultra-compact design means they can deliver up to 360 kW of power in a package small enough to fit into carry-on luggage.

Also unveiled is the High Torque XXL Axle, capable of producing more than 11,000 Nm of axle torque with peak efficiencies above 95%. This system will go into series production in 2026 for a global carmaker, with production lines already being prepared at Rimac’s facilities near Zagreb.

(Photo: Rimac Technology)

On the electronics front, Rimac has developed advanced domain and zonal ECUs powered by NXP’s latest processors. By consolidating multiple controllers into single high-performance units, these systems reduce cost, weight and complexity while enabling software-driven vehicle functions.

From torque vectoring and battery management to body and power distribution, the ECUs ensure scalability, safety and the ability to receive over-the-air updates – an essential requirement for the next generation of connected vehicles.

(Photo: Rimac Technology)

Built in Croatia, for the World

All of these innovations will be manufactured at Rimac’s state-of-the-art facilities in Croatia, which include the flagship €200 million Rimac Campus. With more than 95,000 m² of production space across two sites, the company is now capable of supporting multiple large-scale projects simultaneously.

(Photo: Rimac Technology)

“What we’re showcasing at IAA represents the convergence of breakthrough innovation and production readiness. These are not concepts, but production-ready solutions that will power hundreds of thousands of vehicles in the years to come,” said Rimac Technology COO, Nurdin Pitarević.