theion

Founded in 2020 in Berlin, Theion GmbH develops lithium-sulfur batteries with sulfur crystal technology. Their batteries offer triple the energy density of lithium-ion alternatives at lower costs, supporting electric mobility, aviation, and renewable energy storage with improved performance and sustainability.

Company Location

Country:

Germany

City:

Berlin

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Company Overview

Theion GmbH, founded in 2020 in Berlin, Germany, develops lithium-sulfur (Li-S) batteries using sulfur crystal technology to achieve three times the energy density of conventional lithium-ion batteries while cutting costs by two-thirds, targeting electric mobility, aviation, and renewable energy storage with sustainable, cost-effective solutions.

Battery Technology

Theion’s patented sulfur crystal battery technology employs a lightweight polymer host with specialized coatings instead of graphite or lithium metal anodes, achieving up to 1,000 Wh/kg, over 2,000 charge cycles without dendrite formation, and eliminating cobalt and nickel to reduce environmental impact through integration of abundant sulfur byproduct in manufacturing.

Products

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Recent Projects

In 2024, Theion opened a representative office in Dubai, UAE to leverage regional sulfur resources, launched a Tech Centre in Berlin’s Adlershof science park, and partnered with CamLine to apply AI in battery development for improved testing efficiency and optimization.

Investors

Investors include Enpal (in 2023), Team Europe, and Lukasz Gadowski.

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