Theion Secures €15M to Revolutionize Battery Tech with Lighter, Eco-Friendly Crystal-Sulfur Batteries

March 24, 2025
Theion Secures €15M to Revolutionize Battery Tech with Lighter, Eco-Friendly Crystal-Sulfur Batteries
  • Dr. Ehmes emphasized the goal of positioning Europe as a leader in sustainable energy storage, aiming for CO2-neutral electric flights and improved EV range.

  • These new batteries are environmentally friendly, as they contain no cobalt or nickel and are produced without harmful mining practices, addressing critical environmental and human rights issues.

  • Theion claims that its cells could have a one-third lower carbon footprint and cost compared to conventional lithium-ion cells, thanks to the lower cost and abundance of sulfur.

  • The company aims for its batteries to achieve an energy density of 1,000 Wh/kg, with fast charging capabilities that allow for charging in just minutes.

  • Sulfur, the key material in Theion's batteries, is not only abundantly available but also offers higher energy per weight compared to traditional battery materials, enhancing overall efficiency.

  • Berlin-based Theion has successfully raised €15 million in a Series A funding round, led by Team Global, to enhance its innovative crystal-sulfur battery technology.

  • Under the leadership of Dr. Ulrich Ehmes, Theion is focused on developing sustainable battery technology that utilizes crystal-sulfur, aiming to create batteries that are three times lighter and more efficient than conventional options.

  • Theion's crystal-sulfur batteries are designed to weigh only one-third of current electric vehicle (EV) battery technologies, significantly reducing the overall weight of vehicles.

  • The material costs for Theion's batteries are significantly lower, with sulfur accounting for only 1% of the cost of nickel manganese cobalt (NMC) materials, and the production process consuming only one-third of the energy compared to traditional methods.

  • A major challenge for Theion is achieving longevity, with a target of maintaining battery performance over 1,000 charge/discharge cycles for commercial viability.

  • Theion's efforts are part of a broader trend in lithium-sulfur battery research, with various startups also pursuing commercialization of this technology by the end of the decade.

  • The advancements in Theion's technology could significantly impact various industries, including electric aviation, electric vehicles, and sustainable energy storage.

Summary based on 3 sources


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