Zak Mir speaks with John Wood, CEO of Gelion (AIM: GELN), following the release of the company’s audited results for the year ended 30 June 2025. Wood highlights that Gelion has generated its first commercial revenue, helping lift total income by 36% to £2.7 million.

The performance is in line with expectations and marks a meaningful shift as the global energy-storage specialist moves firmly into its commercial revenue phase. 

Technical Breakthrough: Gelion Achieves Target Areal Capacity

Gelion Advanced Sulfur Cathodes Reach Key Industry Milestone in Coin Cells

Key Highlights:

·      | 4Q Achieved in Coin Cells: Gelion has successfully reached its 4Q areal-capacity target in coin-cell testing, the industry-recognised standard for evaluating advanced battery materials. 4Q is widely recognised as a critical milestone for practical high-energy-density sulfur cathodes. 
·      | Clear Technical Progress Toward Pouch Cells: The coin-cell results provide strong evidence supporting the translation of Gelion's CAM into large-format pouch-cell electrodes capable of meeting 4Q performance targets. 
·      | Improved Electrode Quality and Consistency: Recent work demonstrates enhanced uniformity, improved adhesion, and reproducible slurry rheology, all compatible with scale-up for larger-format electrodes. 
·      | Enabling Future High Energy Density Targets: This milestone strengthens Gelion's roadmap toward high-energy-density, low-cost sulfur-based batteries suitable for e-aviation, electric mobility, stationary storage, and other commercial applications. 
 John Wood, CEO of Gelion, commented: "Achieving 4Q areal capacity in coin cells marks a major validation of our sulfur cathode platform and represents a key technical milestone for Gelion. In the battery industry, 4Q is widely recognised as an important benchmark for high-energy-density sulfur cathodes, and these results give us strong confidence that our sulfur CAM can progress toward delivering the same performance in pouch-cell formats. As we continue refining electrodes for larger format manufacturing, we are building the technical foundation required for prototype development and industry engagement."