theion
theion GmbH – batteries on lithium-sulfur basis
Berlin, Germany · Founded 2020 · $16.4M raised
- Headquarters
- Berlin
- Employees
- 11–50
- Founded
- 2020
- Business Model
- B2B
- Website
- theion.de
- Total Funding
- $16.4M
- Last Round
- $16.4M Series AMar 2025
- Rounds
- 1
About
theion is a Berlin-based battery startup developing sulfur crystal batteries targeting triple the energy density at one-third the cost and CO₂ footprint of lithium-ion cells. The company's technology is based on sulfur's monoclinic gamma crystal structure and serves markets including EVs, aerospace, and stationary energy storage.
Summary
theion is a Climate Tech company based in Berlin, Germany, founded in 2020. It has raised $16.4M in total across 1 round, most recently a $16.4M Series A round in Mar 2025.
Tech & App Stack
2 technologies & apps tracked
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Funding History
Mar 2025
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