German startup believes it has the answer to tripling the range of EVs

  • Theion has raised $15m to develop sulfur-crystal batteries
  • The German company claims they last 3x longer than others
  • But the batteries are still way off from being commercialized

Published on Mar 30, 2025 at 6:59 PM (UTC+4)
by Jack Marsh

Last updated on Mar 27, 2025 at 12:51 PM (UTC+4)
Edited by Kate Bain

Despite being a hurdle that giants like Ford and Tesla have yet to leap over, one German startup company has claimed it has the answer to tripling the range of EVs.

Long-lasting batteries are the gold dust that EV owners and manufacturers have been searching for.

Many top-of-the-range electric vehicles have flopped on the market for this reason, allowing competitors to outlast them in the survival of the fittest bout.

But one German startup company could be about to change the game forever.

VISIT SBX CARS – View live supercar auctions powered by Supercar Blondie

German company raises $15m to produce EV batteries three times as sustainable as current models

Aside from your lithium-ion batteries that run most of the modern EVs, car manufacturers have turned to Hydrogen and even renewable plants.

Other companies have focused on posting record charging times to nullify the long waits.

But the recipe for success in the EV game is still making a car with the longest range, making it extremely affordable to maintain and upkeep.

German startup company Theion recently announced that it was completing a $16 million development cycle for sulfur-crystal batteries, which could triple the length already available in lithium-ion.

The crux of the technology is that the batteries would pack in more energy cells into a similarly-sized pack, meaning that they would be able to last significantly longer.

Theion also claims that its batteries don’t contain nickel or cobalt, being sulfur-based, which also makes these batteries three times as eco-friendly and vastly cheaper to create.

However, the battery packs are a long way off hitting the shelves.

Sulfur-crystal batteries slated to be the ‘future’ of EVs

The sulfur-crystal batteries are still – at least – five years off from being commercialized if the tech continues to hold up through testing.

There are fears that the batteries are not as endurable as lithium, and testing is being intensified to improve their life cycle.

“Sulfur batteries have the potential to transform multiple industries,” CSO and Co-founder, Marek Slavik, said.

“On the ground, these batteries could extend the driving range of electric vehicles while lowering costs, accelerating the adoption of electric mobility, and reducing reliance on fossil fuels.”

Slavik also claimed that if fitted into aircraft, these batteries could help clean up air pollution too.

“In electric aviation, their lightweight and high-energy capabilities make them ideal for powering electric and hybrid aircraft, paving the way for greener air travel.”

The range of EVs is increasing with more and more models finding ways of extending the lifetime of a full charge, such as the upcoming 2026 Mercedes CLA.

DISCOVER SBX CARS: The global premium car auction platform powered by Supercar Blondie

user

Jack Marsh is a journalist who started his media career after graduating with a degree in Journalism from the University of Chester. With five years of experience in gaming, and entertainment, he also has a passion for fantasy novels and sports.