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theion’s Sulfur Crystal Battery
We develop sustainable battery cells for mobility and energy storage applications.
theion will power mobile and stationary applications.
Air Mobility
Our first addressed market.
- Flight time 2h+
- Increased payload
- High safety
- A technology delivering an unmatched gravimetric energy density (kWh/kg)
Stationary Energy Storage
Capacity for sustainably sourced electricity.
- Sulfur battery cells designed for grid, residential and industry applications
- theion’s batteries are engineered to have a low cost over their entire lifespan (€/kWh)
Land Mobility
Environmentally friendly electromobility.
- Range 1000 km+
- Ultra Fast charging < 10 min
- High safety
- High cycle life > 1’000
- A technology enabling widespread of the e-mobility thanks to reduced costs (€/kWh)
Aerospace
Weight-saving application in space logistics.
- Increased payload
- Reduced launch costs
- A technology delivering an unmatched power density (kW/kg)
The theion Sulfur Crystal Battery
High capacity: Triple the gravimetric energy density* (targeting 1’000 Wh/kg)
Ultra-Fast charging: intrinsic high C-rate for charging within minutes
Long cycle life: on insdustry standard levels
High safety: patented safe anode + intrinsically safe Sulfur cathode
Highly sustainable: no Cobalt, no Nickel, no solvents, no harmful mining
Low material cost: the Sulfur cost at 1 % of NMC811 costs
Low energy consumption: 1/3 of the energy across the value chain*
Low cell price: innovative process design drives cost down
* Compared to state of the art batteries
Sulfur = highly energetic + sustainable
Sulfur is an industrial byproduct – no harmful mining required for cathode materials.
This is zero kg emission CO2/kg of Sulfur.
Sulfur contains 5x more energy/kg compared to NMC cathode materials.
theion’s Sulfur battery is fully recyclable at low cost.
We can’t wait to deliver - The world is about to be electrified and needs sustainable solutions
Product Roadmap
Phase 1: Proprietary anode technology for state-of-the-art cell enhancement (+30% energy density*)
Phase 2: Lithium sulfur cells
500 Wh/kg at 500 cycles
Phase 3: Lithium sulfur cells 1000 Wh/kg at 1000 cycles
Phase 2: Lithium sulfur cells
500 Wh/kg at 500 cycles
Phase 3: Lithium sulfur cells 1000 Wh/kg at 1000 cycles
Production capacity
Scalable GWh production facilities set-up in correspondence with customer’s needs.
For experts: theion Sulfur Crystal Wafer at a glance
We are growing a pure Sulfur wafer by our Direct Crystal Imprinting (DCi) method (no slurry coating, no solvents, no water, no drying) directly from molten Sulfur in a few seconds. Because of the flexibility of the process, we can grow any geometrical shape of wafer, and therefore adapted to the customers product shape, yet we suggest a hexagonal shape for space-efficiency reasons.
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We are removing nearly all volumetric fluctuation of sulfur at wafer level by a special conversion process. So, our cathode is able to work at low porosity. By adding conductive paths, we use at maximum the active material which is equivalent to a high energy density.
In the voids of our Sulfur wafer operates a proprietary solid-state polymer electrolyte. We use our proprietary lithium metal host foil as anode. Our battery technology is compatible with bipolar cell arrangement to maximize energy and power content for such cells.
The cell stack is then assembled into a housing which fits geometrically best the customer’s application to maximize module-pack-system energy content.
Targeted performances are:
Gravimetric energy density ≥ 1’000 Wh/kg
Volumetric energy density ≥ 1’500 Wh/l
Power capability ≈ 12.000 W/kg
Cycle life ≥ 1’000 at 1 C
Operational temperature -20 °C to 60 °C
Volumetric energy density ≥ 1’500 Wh/l
Power capability ≈ 12.000 W/kg
Cycle life ≥ 1’000 at 1 C
Operational temperature -20 °C to 60 °C
The team behind theion
We are a team of leading scientists, engineers and entrepreneurs formed around our founder Marek Slavik.
Dr. Ulrich Ehmes
CEO
Our CEO has years of experience in the battery industry and in building high tech factories
Marek Slavik
CSO / Co-Founder
One of the world's leading chemistry scientists and battery experts
Martin Schaupp
CTO
Experienced Automation Engineer for scaling processes from lab to mass production
Matthias Fengler
CFO
Our CFO has led successfully Corporate Finance projects at top investment banks and global industrial groups
Advisory Board
Dr. Gerhard Cromme
Chairman / Investor
Former Chairman of Siemens and ThyssenKrupp | Years of experience in the old and new economy
Lukasz Gadowski
Investor / Team Global
Investor in cutting-edge technology and one of Europe's most successful entrepreneurs
Stine Rolstad Brenna
Investor
Experienced leader both as member of the board and in executive roles (CFO/BD) | Focus on clean energy and impactful tech
Osman Dumbuya
Investor
Inventor of deep tech IT technologies and serial entrepreneur
Marek Slavik
CSO / Co-Founder
10 years experience in Lithium Sulfur Cell Design with tangible test results | Building the foundations of theion’s technology
Johannes Eisele
Investor / Co-Founder
Representing the seed investment company JØB as theion’s founding partner
Henning Rath
Board Member
Managing Director & Chief Supply Chain Officer | Representing Enpal as theion’s strategic investor
theion in the press
Sulfur Battery Technology Could Make Electric Cars Go Three Times Further By 2024
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Enpal investiert strategisch in theion
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German Battery Firm Theion Receives Validation for Ultra-Fast Charging
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Home Industry Energy Insights: Powering the energy transition with new batteries
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创新型 Theion 水晶电池未来应用前景广泛
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„Kristall-Batterien“ – diese Idee soll Akkus besser und günstiger machen
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“The Battery Industry is Very Conservative” – Theion CEO Dr Ulrich Ehmes
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New crystal battery boasts triple energy density
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新任 CEO 掌舵，Theion 推出应用场景多元的水晶电池
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With a New CEO at the Helm, Battery Start-Up Theion Unveils Crystal Battery for all Mobile Applications
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배터리 스타트업 티온, 모바일용 크리스탈 배터리 출시
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Theion unveils Crystal Battery innovation
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Auf die Tesla-Wunderbatterie dieser Berliner wettet Lukasz Gadowski
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新CEOを迎えたドイツの電池メーカーTheion、あらゆるモバイルアプリケーションに対応するクリスタル電池を発表
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Theion announces the battery with triple energy density
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科技突破！Theion 水晶电池续航增 3 倍
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‘Crystal battery’ discovered that could triple the range of electric vehicles
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未来能源 Theion 锂硫电池，安全环保高效
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Battery Start-Up Theion Unveils Crystal Battery For All Mobile Applications
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With a New CEO at the Helm, Battery Start-Up Theion Unveils Crystal Battery for all Mobile Applications
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新CEOを迎えたドイツの電池メーカーTheion、あらゆるモバイルアプリケーションに対応するクリスタル電池を発表
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Dreimal stärkere E-Auto-Akku-Ladung: Ex-Siemens-Aufseher Cromme setzt auf dieses Start-up
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Gerhard Cromme hofft auf die Wunderbatterie
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Schwefelkristall-Batterie-Startup theion verkündet technologischen Fortschritt
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Theion arbeitet in Berlin an Weiterentwicklung seiner Schwefelkristall-Batterie
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A new generation of batteries with sodium-sulfur technology
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VENTURE SPRIND BRINGS TOGETHER TEAMS AND DEEP-TECH INVESTORS
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Anode mit hoher Energiedichte ermöglicht ultraschnelles Laden
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Career
We offer the opportunity to work with us on the development of a revolutionary battery technology.
Interested?
Check our current job offers here
Check our current job offers here
How you can get involved
Become our industrial partner/customer
Contact us
Address
theion GmbH
Gerhard-Sedlmayr-Strasse 31
12487 Berlin
Gerhard-Sedlmayr-Strasse 31
12487 Berlin