Here’s What the Solid-State Battery Mercedes-Benz EQS Looks Like – Range Exceeds 1000 Kilometers

Mercedes-Benz has begun real-world testing of electric vehicles equipped with solid-state batteries, bringing this groundbreaking technology closer to mass production. The testing platform is none other than the luxurious EQS liftback, now fitted with a higher-capacity battery developed in collaboration with Mercedes-AMG High Performance Powertrains (HPP), the Battery Systems Competence Center, and the U.S.-based Factorial Energy.

Revolutionary Technology – Longer Range and Enhanced Safety
The new solid-state batteries offer a 25% increase in energy capacity, allowing the EQS to surpass the 1000-kilometer range, up from its current 870 km on a single charge. The energy density of the battery cells reaches 450 Wh/kg, outperforming the conventional lithium-ion batteries currently in use.

Beyond extended range, solid-state technology enhances safety, as these batteries contain no flammable liquids and enable passive cooling, which reduces overall battery weight and improves efficiency.

Innovative Hydraulic Actuator for Battery Stability
One of the key innovations is a patented hydraulic actuator, which compensates for volume fluctuations that occur during battery charging and discharging. This breakthrough helps maintain cell efficiency, extend battery lifespan, and prevent performance degradation caused by structural changes in the cells.

A Major Leap Toward the Future of Electric Vehicles
Mercedes-Benz will continue testing solid-state batteries over the next several months to ensure reliability and readiness for production. If all goes according to plan, the EQS equipped with this next-generation battery could become one of the longest-range electric vehicles on the market.