Li-S Energy and MSubs launch UUV battery-testing collaboration
Li-S Energy and MSubs agreed to test pressure-tolerant lithium-sulfur cells under simulated submarine-depth and multi-day mission conditions before deciding whether to evaluate propulsion integration in MSubs platforms.

Evidence notes
- MSubs will provide a specialised pressure-test chamber for trials at Li-S Energy's Geelong facility.
- The initial programme covers submarine-depth pressure and endurance testing designed to simulate multi-day deployments.
- Only if the trials succeed will the parties evaluate Li-S batteries as propulsion power sources in current or future MSubs platforms.
Company context
Li-S Energy develops lithium-sulfur and lithium-metal battery cells designed to increase energy density while reducing weight. Its commercialization programmes target drones, electric aviation, defence platforms and other weight-sensitive mobile systems.