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The Fraunhofer Institute for Ceramic Technologies and Systems IKTS plans to showcase its high-temperature battery cerenergy – and specifically the 5 kWh, 20 battery cell model – at Energy Storage Europe 2019 in Düsseldorf in mid-March. The sodium-nickel chloride battery is primarily based on sodium chloride, one of the most cost-efficient raw materials in the world. No rare earths or other strategic resources are used. In addition to sodium chloride, only a ceramic Na ion-conducting electrolyte made of doped aluminum oxide, as well as nickel and iron are required.

Together they create an energy storage system with an overall efficiency of > 90% and an energy density of 130 watt hours per kilogram. The operating temperature, which easily reaches 300 °C for ceramic battery solutions, is shielded from outside influences by a vacuum insulation.