At TU Wien, Alexander Opitz and his team are exploring the potential of oxygen-ion batteries – a promising alternative to lithium-based systems. Developed within a Christian Doppler Laboratory in collaboration with energy provider VERBUND, these batteries use abundant ceramic materials, avoiding critical raw elements like lithium and cobalt.

Unlike conventional batteries, oxygen-ion systems operate safely at high temperatures and are non-flammable and non-toxic, making them ideal for stationary large-scale energy storage – a key challenge in renewable energy integration.

By shifting oxygen ions between electrodes, this fully reversible technology could help store solar or wind energy during times of surplus and release it when needed – contributing to Austria’s energy transformation.

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