Lithium–sulfur, built around a grown crystalline sulfur cathode: turning an abundant industrial by-product into a high-energy battery, engineered in Berlin
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The theion Crystal Battery stack eliminates the performance trade-offs of conventional lithium–ion. Each layer plays a precise role in delivering up to 3× more energy density at 1/3 the material cost
Proprietary lithium metal host anode reduces weight, enables fast charging and avoids dendrites. Patented safe anode design
Proprietary gel polymer electrolyte operating within the sulfur wafer voids. Enables intrinsically safe operation
Grown directly on top of highly conductive CNTs from molten sulfur via theion's Direct Crystal Imprinting (DCi), with no undefined slurry
Lithium–sulfur, built around a grown crystalline sulfur cathode: turning an abundant industrial by-product into a high-energy battery, engineered in Berlin
Click to learn more
The theion Crystal Battery stack eliminates the performance trade-offs of conventional lithium–ion. Each layer plays a precise role in delivering up to 3× more energy density at 1/3 the material cost
Proprietary lithium metal host anode reduces weight, enables fast charging and avoids dendrites. Patented safe anode design
Proprietary gel polymer electrolyte operating within the sulfur wafer voids. Enables intrinsically safe operation
Grown directly on top of highly conductive CNTs from molten sulfur via theion's Direct Crystal Imprinting (DCi), with no undefined slurry
Battery cell targets based on theion's patent portfolio
From our first pouch cell developed in Berlin towards industrialization and mass production. By 2029 we target to manufacture cells with 1000 Wh/kg and 500 cycles in our 50 MWh pilot line.