Mercedes-Benz Confirms Solid-State Battery EVs by 2030: Longer Range, Faster Charging, and Safer Tech on the Way

The race to improve electric vehicles (EVs) continues, and Mercedes-Benz has just made a major move in the industry’s push toward solid-state battery technology. At a recent event in Copenhagen, Markus Schäfer, the German automaker’s development chief, confirmed that Mercedes will launch EVs powered by solid-state batteries before the end of the decade.

This isn’t just a vague promise. It signals a bold bet by one of the world’s oldest and most prestigious automakers on what many believe is the next-generation EV battery technology.

To achieve this milestone, Mercedes-Benz is collaborating with Factorial Energy, a U.S.-based battery startup that specializes in solid-state cell development. In fact, the partnership is already showing results — Mercedes has fitted a prototype EQS electric sedan with Factorial’s solid-state batteries, and it’s currently undergoing real-world testing.

What Makes Solid-State Batteries a Game-Changer?

The most exciting improvement is in driving range. Mercedes claims that solid-state batteries could offer up to 25% more range than current lithium-ion batteries. For example, an EV that currently achieves 480 km on a full charge could jump to 600 km using solid-state tech — all without increasing battery size.

This comes from higher energy density, meaning these batteries can store more energy in the same space. This allows for either longer range, or smaller, lighter battery packs — improving vehicle efficiency and performance.

But range isn’t the only advantage. Solid-state batteries are safer. Unlike conventional lithium-ion packs that use a flammable liquid electrolyte, solid-state designs use a stable solid material, significantly reducing the risk of overheating or fire.

A Global Race for Solid-State Dominance

Mercedes isn’t alone in this pursuit. Other global automakers are deep in development too:

Volkswagen is partnered with QuantumScape

BMW is working with Solid Power

Stellantis, another Factorial partner, plans to roll out a demo fleet by next year

While solid-state EVs won’t hit showrooms tomorrow, the "by 2030" target shows serious momentum. One challenge is cost-effective mass production — building solid-state batteries that are affordable and reliable for everyday use remains a monumental task.

In the meantime, some automakers are deploying semi-solid-state batteries, which use a gel-like electrolyte to gain partial benefits of solid-state tech while being easier to manufacture.

Conclusion

Mercedes-Benz’s confirmation of solid-state EVs by the end of the decade is a major step toward the future of electric mobility. With better range, faster charging, and enhanced safety, solid-state batteries could be the breakthrough that takes EVs to the next lev