Gaining sustainable energy from wind, solar and water is commonly known and applied. However, renewable sources depend on environmental conditions: in peak times of wind and sun, excess energy is produced that is needed in times of less wind and sunshine. But how to store and transport this excess energy efficiently?
So far, no reliable, safe and cheap way has been found to store a high amount of energy in a small volume container. Now, scientists from the Max-Planck-Institut für Eisenforschung (MPIE) and the Eindhoven University of Technology analyzed how metals, particularly iron, can be used for energy storage and which parameters determine the efficiency of the storage and reuse. They published their recent findings in the journal Acta Materialia.
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