Passing Competitors, Mercedes-Benz Tests Successful Solid-State Battery Test That Breaks 1000 Kilometers Without Refill

JAKARTA - Today the automotive world, especially electric vehicles, was shocked by the Mercedes-Benz announcement about their progress in the electric vehicle industry.

With full support from their Formula 1 division, Mercedes AMG High Performance Powertrains (HPP), managed to test the solid-state (solid-state) highway with a modified EQS model.

Not just an upgrade, this is a leap towards the future of electric mobility even ahead of a number of other manufacturers that are also developing similar types of batteries.

Imagine a safer, lighter, more efficient, electric car and capable of traveling 25 percent further. That's the promise of a solid battery developed by Mercedes-Benz with Factory Energy, the leader of solid battery technology from the United States.

Launching the global release of the manufacturer, Monday, February 24, the highway testing, which began in February 2025, marks a milestone, with the specially modified EQS model ready to test the capability of this revolutionary battery in real-world conditions.

What makes this breakthrough even more special is the cross-discipline collaboration between passenger car engineers and Formula 1 technology experts from HPP.

"We combine the best expertise of highways and racing tracks, to accelerate the development of innovative and sustainable solid batteries," said Mercedes-Benz CTO Markus Sch wayfer.

Also known as HPP, a subsidiary of Mercedes-Benz known for its leading Formula 1 technology, plays an important role in designing and developing a completely new solid battery system. The speed and accuracy that characterizes F1 is translated into faster and more efficient battery development.

Solid batteries use solid electrolytes, not fluids, that significantly increase cell security and enable the use of new anodes such as lithium metal. The result? A much higher energy density (up to 450 langs/kg at the cell level), lighter battery weights, and performance that goes far beyond conventional lithium-ion batteries.

"This is a historic achievement. Integration of lithium metal solid batteries into production vehicle platforms proves that this technology has surpassed the laboratory and is ready for real-world applications," said Factory Energy CEO Siyu Huang.

EQS 1000 KM: A Dream Comes True

The results of this technology are very impressive. Modified EQS with a solid battery is able to cover a distance of up to 25 percent further than the standard EQS battery of the same weight and size. With the passive battery cooling system increasing energy efficiency, this test car is expected to be able to cover a distance of more than 1,000 km!

For comparison, the current EQS 450+ with a battery capacity of 118 kWh has been able to cover a distance of more than 800 km. With a solid battery, Mercedes-Benz is ready to exceed the existing limits.

Over the next few months, Mercedes-Benz will conduct extensive laboratory and highway testing to test the overall solid battery performance. Collaboration with Factorial Energy, which began in 2021, has reached an important milestone with the delivery of the first lithium metal solid battery sample to global OEM.

This breakthrough is not only about increasing the distance, but also about creating safer, more efficient, and more sustainable electric cars. With the support of Formula 1 technology and leading innovation, Mercedes-Benz is ready to lead a dense battery revolution and bring electric mobility to the next level.