Sulfur as the basis of new battery technology
Sulfur could fundamentally change the way batteries are manufactured. New research shows that crystal structures of the element allow for more energy density, less weight and lower cost.

Sulfur as the basis of new battery technology
Current developments in battery research are putting sulfur in focus. The element, which is available worldwide as an industrial by-product, offers the basis for powerful energy storage thanks to its monoclinic gamma crystal structure. Studies show that lithium-sulfur batteries can achieve an energy density of up to 1000 Wh/kg - significantly more than conventional lithium-ion batteries. The Berlin company theion, which was founded in 2020, is driving this work forward and presents the sulfur crystal battery as a contribution to the global energy transition.
The technology promises several advantages: lower weight, reduced production costs and a better environmental balance as critical raw materials such as nickel or cobalt are no longer needed. In addition, the use of sulfur could reduce dependence on geopolitically sensitive supply chains. Research from the USA shows that sulfur-based batteries can handle over 4,000 charging cycles without significant loss of capacity.
In addition to electromobility, electric aviation and stationary energy storage are also considered possible fields of application. The first prototypes in the form of button batteries have already been successfully tested.