**Summary**
Gelion plc, a global energy storage innovator, has achieved a significant breakthrough in Lithium-Sulfur (Li-S) battery technology, demonstrating exceptional performance in initial coin cell <mark style="background-color:yellow">test</mark>s. This milestone builds on their collaboration with the Max Planck Institute of Colloids and Interfaces (MPI) and follows successful Sodium-Sulfur (Na-S) coin cell results announced earlier in 2025. Key results include
1. **Longer Battery Life** Li-S coin cells with Gelions proprietary Sulfur Cathode surpassed 1,000 cycles under aggressive testing conditions, retaining 90% of theoretical capacity at C/10 discharge rates, indicating suitability for mass-market e-mobility.
2. **Higher Power Performance** Cells retained 75% of theoretical capacity at high discharge rates (10C), meeting demands for applications like drones and fast-charging electric vehicles.
This advancement addresses longstanding challenges in Li-S technology, such as poor cycle life and limited high-rate performance, positioning Gelion’s Li-S batteries as a viable, sustainable alternative to lithium-ion batteries. With 60-70% higher specific energy density, lower material costs, and improved sustainability, Gelion’s breakthrough paves the way for commercialization across diverse applications, including e-mobility, drones, and stationary energy storage. CEO John Wood emphasized the collaboration with MPI as a pivotal step toward meeting future energy storage demands with high-performance, sustainable battery technology.