Gelion is having its sulfur cathode tested by another automaker
Gelion has reached an agreement with an unnamed major automaker to test its sulfur-based NES cathode technology. The OEM is set to evaluate the material in cells using liquid and solid electrolytes, as well as lithium-metal and graphite anodes.
Gelion views electric vehicles as a key target market for its sulfur cathode technology.
Image: Gelion
The British-Australian battery developer Gelion is bringing its Nano-Encapsulated Sulfur technology (NES) into another development program in the automotive industry. The company claims to have signed a material transfer agreement with an OEM, which is said to be among the world’s 15 largest automakers. Gelion does not reveal which manufacturer is involved or the scope of the testing.
Under the agreement, Gelion will supply the sulfur-based cathode active material, coated cathodes, and liquid electrolyte to the automaker. The technology is set to be tested in various cell configurations, using both liquid and solid electrolytes, as well as in combinations with lithium-metal and graphite cathodes. Gelion mentions volume models as well as higher-end electric vehicles as potential application areas.
The core of this approach is Gelion’s NES material. The company aims to replace conventional cathode chemicals that rely on critical raw materials with sulfur, which is relatively widely available. According to Gelion, this material can also be used on existing battery production lines without major modifications.
For automakers, the potential advantages lie in two aspects: reduced dependence on raw materials and potentially easier integration into existing production processes. However, the new agreement should still be considered an evaluation program for now. The material transfer agreement does not indicate a decision to move to series production or the launch of specific vehicles.
Gelion aims to replace traditional cathode materials
Since June, the company has also been working on the UK-funded CoRe-SoLiS project with Nissan and Oxford University to integrate its nano-encapsulated sulfur cathode into solid-state lithium-sulfur cells. The goal is to develop cells with high energy density, charging speed, and longevity.
Longevity remains one of the key challenges in lithium-sulfur batteries to date. Additionally, polysulfides can cause issues that affect performance and cycle life. Gelion claims its NES technology can significantly reduce these weaknesses, but it does not provide specific performance figures for the current OEM program.
Gelion CEO Matt Wood views the new agreement as another step toward commercialization. The company is now working with several major automakers. Revenues are expected to come first from funded development programs and later through licensing and royalty models.
In addition to electric vehicles, Gelion’s battery technology is also aimed at applications such as drones, electronic devices, and other high-performance uses. The key now will be whether the NES cathode can truly outperform established cathode chemistries in terms of energy density, lifespan, charging speed, and cost in automotive batteries.