rewrite this title Rimac Unveils Next-Generation Solid-State Battery with Ultra-Fast Charging

Rimac Technology, renowned for its electric hypercars, showcased a new lineup of products at the IAA Mobility show in Munich. The centerpiece of their presentation was a groundbreaking solid-state battery platform that can charge from 10% to 80% in just 6.5 minutes.

While Rimac gained fame with cars like the Nevera, it has long been a key technology partner for prestigious brands such as Koenigsegg and Aston Martin, supplying them with battery and powertrain systems. Following an investment from Porsche and a merger with Bugatti in 2021, Rimac has cemented its position as a leading Tier 1 supplier and development partner for OEMs in the high-performance electric vehicle sector.

Let’s take a closer look at the key new products Rimac unveiled in Munich:

Solid-State Battery Platform: Developed in collaboration with ProLogium and Mitsubishi Chemical Group, this next-gen battery is touted as being lighter, safer, and more energy-dense than current lithium-ion packs. With a cell-level energy density of 260 Wh/kg, a 100 kWh pack weighing 470 kg with standard lithium-ion cells could be reduced to just 384 kg with the new solid-state technology. The company also claims the battery retains over 95% of its energy at temperatures as low as -20°C and is free from fire or explosion risks at the cell level.E-Axle Technology: The new “SINTEG 300 & 550” single-motor integrated axles offer impressive power densities of over 8 kW/kg and torque densities of 90 Nm/kg, with rotor speeds up to 25,000 rpm. With power outputs from 150-360 kW and torque from 2,500-6,250 Nm, these axles are suitable for everything from small sports hatchbacks to large SUVs.XXL High-Torque Axle: The dual-motor “EDU 550” is scheduled for series production in 2026 for a global manufacturer. It boasts an efficiency of over 95% and an axle torque output of more than 11,000 Nm.Electronics: Rimac has developed new ECUs based on the NXP S32E2 platform for functions like torque vectoring, high-voltage battery control, and over-the-air (OTA) software updates.Production Capacity: Rimac is aiming to produce tens of thousands of units per month from its 95,000 m² campus in Croatia, a €200 million investment. In the last year, Rimac has collaborated with major automotive brands including the BMW Group, CEER Motors, and Porsche.

Rimac Goes Solid-State

Solid-state batteries have long been viewed as the next-generation solution for energy storage, promising longer range, faster charging, and greater durability. Rimac’s new Next-Gen battery package is designed to accelerate this transition. By combining ProLogium’s solid-state cells, materials from Mitsubishi Chemical Group, and innovative housing methods, Rimac has created a solution that enhances both energy density and safety.

The battery pack operates in a voltage range of 540 to 907 volts and uses a cell-to-pack architecture with pouch-type cells. The cathode contains 90% nickel, 5% manganese, and 5% cobalt, while the anode is 100% silicon. Unlike conventional battery packs that use water and glycol, this system is cooled with a refrigerant fluid and housed in a thermoplastic composite casing.

The most impressive claim is the charging time: the solid-state battery can go from 10% to 80% in just 6.5 minutes. This technology will debut in a high-performance model in the fourth quarter of 2027.

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