At this year’s IAA Mobility in Munich, Rimac Technology pulled the covers off something every EV enthusiast has been waiting for — a production-ready solid-state battery pack.
Developed in partnership with ProLogium and Mitsubishi Chemical Group, this next-gen pack redefines boundaries. Rimac claims a 100kWh unit can charge from 10% to 80% in just six and a half minutes. That’s quicker than most petrol stops, and a huge step towards making range anxiety a thing of the past.
The solid-state chemistry also brings other perks. The pack is smaller, lighter, and safer than today’s liquid-based cylindrical cells. We’re talking about a unit that weighs around 384kg, nearly 90kg lighter than Rimac’s latest cylindrical pack, all while taking up less space in the car. For performance-focused OEMs like Porsche and BMW, that means more freedom to design sleeker, lighter EVs without compromising on range.
It’s tough and reliable. Rimac claims the battery keeps over 95% of its energy, with no risk of fire or explosion, even at -20°C. For EVs, it’s almost like upgrading from a carburetor to fuel injection — a game-changing leap.
Cutting-Edge EV Tech, Coming Your Way
Unlike many show-stopping concepts, Rimac’s solid-state solution isn’t a distant dream. The Croatian tech powerhouse says the first production applications will hit the road in late 2027. As a tier-one supplier already working with giants like BMW Group, Porsche, and CEER Motors, Rimac has the industrial muscle to scale fast.
It helps that Rimac Technology sits within the Rimac Group, the same umbrella that also houses Bugatti Rimac, the joint venture responsible for crafting some of the world’s most extreme hypercars. That connection gives Rimac credibility in the performance world in addition to the financial and industrial backing to bring high-tech innovations from concept to mass production.
The solid-state pack slots into a portfolio that also includes “Evo” cylindrical solutions and hybrid pack tech, giving OEMs flexibility depending on their performance and packaging needs. Solid-state is the main attraction.
Next-Gen e-Axles: Compact, Powerful & Ultra Efficient
Batteries weren’t the only stars of Rimac’s stand at IAA. The company also unveiled its next wave of e-axles, and they’re every bit as innovative.
The new SINTEG 300 and 550 single-motor drive units are ultra-compact, fully integrated systems that unleash serious torque. With power density exceeding 10.7 hp/kg and torque density over 90 Nm/kg, these units set new industry benchmarks. In other words, they deliver hypercar-level power in a package small enough to fit in a carry-on.
Thanks to a patented ultra-light rotor capable of spinning up to 25,000 rpm and a fresh magnet design, these e-axles can unleash between 201 and 482hp and up to 6,250 Nm of torque. That’s enough to make a hot hatch feel like a supercar or give a family SUV a serious performance kick.
And then there’s the High Torque XXL Axle. Entering production in 2026 for a global OEM, this dual-motor unit pushes over 11,000 Nm of axle torque with more than 95% efficiency. That’s the kind of instant, brutal power petrolheads expect from V12s or big diesels, only this time, it’s electric and silent.
Electronics That Unlock The Full Potential
Raw hardware is only part of the picture. Rimac is also introducing advanced domain and zonal ECUs with NXP’s latest processors. These combine multiple ECUs into a single high-performance controller, cutting weight and complexity while enabling the software-defined future of EVs.
It’s like having a race team’s telemetry built into your car. These ECUs handle everything from torque vectoring to high-voltage battery management, ensuring every kilowatt is used efficiently. Over-the-air updates let the system improve over time — like tuning your car’s ECU, but wirelessly.
Rimac’s Goal: From Prototype To Performance
Behind the big reveals at IAA, Rimac Technology is proving it can take groundbreaking innovations from concept to production. With two facilities in Croatia spanning 95,000 sqm, including the €200 million Rimac Campus near Zagreb, the company has the scale and industrial muscle to support multiple OEMs simultaneously.
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