4th Dec 2025 18:07
Gelion PLC - London-based battery energy storage systems firm - Achieves major technical milestone in the development of its next-generation sulfur battery technology, calling it "a major step" towards delivering high-energy-density, low-cost sulfur-based batteries for e-aviation, electric mobility, stationary storage and other commercial applications. Specifically, Gelion says its proprietary cathode active material crosses the 4Q threshold, demonstrating stable cycling with the industry-recognised 4Q areal capacity in coin cells, the industry-standard platform for evaluating new battery materials. This follows the successful technology transfer from the Max Planck Institute of Colloids and Interfaces and the Gelion CAM scale-up announced in September. Gelion says the achievement directly supports its energy-density and cost objectives for next-generation sulfur-based batteries.
"Achieving 4Q is widely regarded as a key milestone for high-energy density sulfur cathodes. This demonstrates that Gelion CAM can be processed into thicker, high structural integrity electrodes which provide a critical step towards high energy density performance in large format pouch cells. This is a critical enabler for scaling sulfur-based technology toward commercial grade battery systems," Gelion says.
Current share price: 20.10 pence, closed down 0.7% in London on Thursday for a market cap of GBP44.79 million
12-month change: up 8.7%
By Aidan Lane, Alliance News reporter
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