Rimac's Revolutionary Solid-State Battery: A Leap in EV Charging and Performance











Redefining Electric Mobility: Instant Power, Endless Journey
The Genesis of a Game-Changing Battery: Introducing Rimac's Latest Innovation
At the recent IAA Mobility exhibition in Munich, Rimac Technology, a subsidiary of the Rimac Group, showcased its pioneering solid-state battery pack designed for electric cars. This innovation promises to revolutionize the charging experience, making it quicker than refueling a traditional gasoline vehicle and grabbing a cup of coffee. Developed through a collaborative effort with ProLogium and Mitsubishi Chemical Group, this advanced liquidless high-voltage battery debuted alongside Rimac's existing liquid-based cylindrical cell technology.
Unprecedented Charging Speed: A Paradigm Shift in EV Convenience
While Rimac's cylindrical cells have seen improvements, the solid-state pack truly stands out with its remarkable specifications, particularly its charging speed. A 100-kilowatt-hour solid-state battery can achieve an 80% charge from a 10% state in approximately six and a half minutes. This speed surpasses even the time it takes to fill up a conventional car and handle payment at a gas station, indicating a monumental leap forward for electric vehicle practicality. However, this advancement necessitates that direct current fast chargers, currently offering up to 350 kW, also evolve to support these higher charging rates.
Enhanced Safety and Efficiency: Beyond Just Speed
Anticipated for integration into high-performance electric vehicles by the fourth quarter of 2027, Rimac's solid-state battery offers more than just speed. It is engineered to maintain over 95% of its energy even in extreme cold conditions, down to -20 degrees Celsius. Crucially, the cell design eliminates the risk of fire or explosion, significantly enhancing safety. As a key supplier, Rimac Technology's components are already utilized by leading automotive manufacturers such as BMW Group and Porsche.
Technical Superiority: Power, Density, and Design
The technical specifications of the new battery further underscore its superiority. Operating between 540 and 907 volts, it boasts a power density of 2,210 Watts per kilogram and 2,980 Watts per liter. These figures represent a considerable improvement over the current cylindrical cell pack, which offers 1,753 W/kg and 2,575 W/l. Consequently, a 100 kWh solid-state pack requires less space (285 liters compared to 320 liters) and is significantly lighter (384 kg versus 470 kg).
Innovative Composition and Cooling: The Core of Solid-State Advantage
Rimac's solid-state pack utilizes pouch cells, assembled using a cell-to-pack method. The cathode is composed of 90% nickel, 5% manganese, and 5% cobalt, while the anode is 100% silicon. Encased in a thermoplastic composite, the pack employs indirect refrigerant cooling, a departure from the water-glycol cooling system used in cylindrical cells. Additionally, Rimac Technology also showcased new electric drive units and advanced domain controllers at the IAA Mobility event, further solidifying its position as a leader in EV component innovation.