Gelion’s GEN 3 Sulfur Cathode viability update

Gelion (AIM: GELN), the Anglo-Australian battery innovator, updates on relevant progress made in its Gen 3 Sulfur Cathode Technology, which has been in development to unlock the potential of sulfur batteries for a range of global energy storage applications.

Following testing by an independent third party, a renowned European research institution, the Group has now demonstrated that its proprietary Gen 3 Sulfur Cathode material is viable to be paired with solid-state electrolyte material toward full solid-state applications. This development means Gelion has a technology with the potential to complement and establish a significant market presence alongside traditional Li-ion cathode chemistries (e.g. NMC or LFP).

Pairing the cathode material with solid-state components is expected to be a critical factor in:

• Preventing polysulfide shuttle - a route to improving battery longevity
• Eliminating liquid electrolyte - no leakage, lower flammability risks, and a route to better safety
• Offering a route to higher energy density - enabling lighter batteries
• Presenting an opportunity to apply low-cost and sustainable sulfur cathodes to solid-state approaches

The Gelion Sulfur Cathode material is identical to that used with its high-performance Gen 3 liquid electrolyte lithium-sulfur batteries, which have already achieved high energy density of 402 Wh/kg. This development allows Gelion to potentially offer a solution across the liquid, semi-solid-state and solid-state technologies, targeting an even wider range of applications. Gelion's Sulfur Cathode technology is compatible with multiple anode chemistries and has made significant progress over the last 12 months to extend its applicability and potentially remove barriers for commercialisation.

Gelion is at the forefront of developing low-cost sulfur cathodes that can be broadly applied across various Li battery chemistries and applications, including electric vehicles, stationary storage, and drones, where reliability, weight reduction and cost savings are required. Sulfur offers significant advantages, including high energy density, cost-effectiveness, abundance and sustainability.

Solid-state batteries have the potential to revolutionise energy storage by enhancing safety, increasing energy capacity, and reducing reliance on critical raw materials. Despite their benefits, solid-state batteries require high capital investment for development of manufacturing capability, scalability, and to overcome material constraints.

Gelion has adopted a Materials Business model and plans to focus on the manufacturing scale-up of its Gen 3 cathode material. It intends to do so by partnering with companies with existing expertise in the design and production of full-solid-state cells to distribute its Gen 3 cathode technology for long term applications requiring high energy and low-cost batteries. This will be undertaken whilst continuing to optimise the GEN 3 cathode technology in liquid electrolyte-based silicon and semi-solid-state battery technologies with greater potential to electrify shorter term markets in Aerospace, Defence and niche Automotive applications.

This development directly ties into the Group's mission to provide global energy storage solutions that are robust, safe and affordable with low environmental impact, enabling the supply of clean power for all.

John Wood, Gelion CEO commented: "I am very pleased with the balanced yet ambitious approach our team is taking in advancing our Sulfur Cathode Technology. Sulfur has the potential to be a game changer for battery technology and the energy transition.

"A successful energy transition requires two elements: the first is technology that provides a full solution to market needs and the second commercial development of key supply chain relationships.

"This progress allows Gelion to confidently demonstrate to our partners that our leading sulfur battery technology will be able to support their own objectives across the full scope as the industry progresses toward liquid, semi-solid-state, and full-solid-state outcomes".

Cathode Viability for Full Solid-State Batteries

Gelion's high energy density GEN 3 Sulfur Cathode material has been successfully tested by an independent third party in a full solid-state configuration, a key step toward unlocking the full potential of lithium-sulfur chemistry potentially opening pathways for a wider range of application.

Figure 1: Battery technologies in which Gelion Gen 3 sulfur cathode technology has the potential to be employed

Lithium Sulfur

Advantages of Gelion's GEN 3 Lithium Sulfur

• High energy density - Energy density > 400 Wh/kg, when using a 10+ Ah pouch cell.

Glossary

Zinc

Recycling

Integration