► Features latest chemistry and housing materials
► eAxles promise industry-leading power density
► Applications in EVs and hybrids
While Rimac has been busy dazzling the world with the upcoming, jewel-like Bugatti Tourbillon, behind the scenes Rimac Technology has developed a new solid-state battery platform and eAxle motors that, Rimac claims, could move the electric car game on significantly. Both were unveiled at the 2025 Munich motor show.
According to Rimac, the new solid-state battery leverages “cutting-edge” cells sourced from ProLogium and other “advanced materials” from Mitsubishi Chemical Group to create a platform that “pushes the boundaries” of energy density, weight and safety.
Solid-state batteries are widely seen as the next big step in battery technology that’s needed to remove many of the disadvantages traditional EV batteries face – particularly weight and comparatively short range. Mercedes unveiled its own solid-state battery at Munich, in an EQS with over 800 miles of range – 300-plus miles more than the standard car manages. If you’re not sure what a solid-state battery is, check out our full explainer.
Rimac hasn’t neglected its existing battery tech, either. Its latest nickel-manganese-cobalt cells now live in a housing made from next-gen thermoplastic that allows better cooling and opens news possibilities for packaging the battery into both fully electric and hybrid cars.
Next-gen axle/motor units promise huge power density
Meanwhile Rimac’s new Sinteg integrated motor/axle eAxle units are said to offer “all-new levels of performance” with power density of at least 10bhp/kg and torque density of over 66lb-ft/kg. That’s a lot of power in a unit that apparently fits in a carryon suitcase.
The eAxle can be positioned centrally or to the side. Power output from a single eAxle ranges from 202bhp to 483bhp, depending on how it’s configured. There’s also a dual eAxle that Rimac claims delivers a whopping 8113lb-ft of torque; that’ll see use with an as-yet unnamed OEM in 2026.
On top of all that, Rimac has shown its latest state-of-the-art ECUs that can combine the functions previously handled by several traditional ECUs into one “high-performance domain controller.”
Rimac Technology has recently inked deals with BMW, Porsche and Saudi EV start-up Ceer Motors, among other OEMs, to supply exactly the kind of tech seen in Munich.