Mercedes-Benz EQS is already known for its impressive range, but the latest innovation takes it even further. The German automaker is testing a new solid-state battery in a road-worthy EQS, and the results are game-changing.
Breaking Records with Solid-State Batteries
Currently, the longest-range EQS model in the U.S. can travel up to 390 miles on a single charge. But with this new battery technology, Mercedes claims it can reach an astonishing 620 miles. Even when adjusted for the more conservative EPA estimate, that still translates to around 488 miles-nearly 100 miles more than before.
How Solid-State Batteries Change the Game
Unlike traditional lithium-ion batteries, solid-state batteries use a solid or mostly solid electrolyte instead of a liquid solution. The Mercedes test vehicle’s battery features a lithium-metal anode, which is both lighter and more efficient. This means the battery can store up to 450 watt-hours per kilogram-significantly more than current options.
For drivers, this translates into two major benefits:
- Longer Range – More energy storage means more miles per charge.
- Lighter Vehicles – Less weight improves efficiency and performance.
Smart Engineering for a Smarter Battery
Mercedes made key design adjustments to maximize efficiency. The battery no longer requires active cooling, removing the need for coolant, pumps, and other components. Instead, it uses passive cooling, cutting unnecessary weight.
Another innovative feature is the use of pneumatic supports to mount the battery. Since solid-state batteries can change volume based on their charge state, these supports adapt accordingly, keeping the battery securely in place.
Who Else Is Involved?
Mercedes partnered with Factorial, a Massachusetts-based company specializing in solid-state battery development. This collaboration is significant, as Factorial also works with major players like Hyundai and Stellantis (the parent company of brands like Dodge and Jeep). This signals that solid-state battery technology is not just an experiment-it’s the future of electric vehicles.
What’s Next?
With multiple automakers investing in this technology, solid-state batteries could become mainstream sooner than expected. Mercedes is leading the charge, but competitors like Honda and Toyota are also making progress. The race to revolutionize EV battery technology is well underway, and the benefits for drivers will be enormous.
Final Thoughts
Mercedes-Benz is proving that electric vehicles can go farther and perform better with the right technology. This solid-state battery test is a major step forward, and it won’t be long before we see these advancements in production models. As battery efficiency improves, the future of EVs looks more promising than ever.
