Metal-air batteries typically consist of a metallic anode and a porous cathode that allows oxygen from the atmosphere to be used as a reactant. This means that metal-air batteries have the highest theoretical energy density of all battery types.
We are particularly interested in sodium-air batteries due to the abundance and low cost of sodium compared with lithium.
One way to optimise the performance of sodium-air batteries is to create a 3D porous carbon cathode that increases the surface area available for oxygen to react. We collaborate with different nodes within ACES to synthesise carbon-based materials such as nano-fibers, nanotubes and graphene to use in our devices.