Contact

Dr. Tom Weier
Magnetohydrodynamics
t.weierAthzdr.de
Phone: +49 351 260 2226, +49 351 260 2013
Fax: +49 351 260 12226, +49 351 260 12013, +49 351 260 2007

Eye catcher

Energiespeicherung und -wandlung mit Flüssigmetallen

Elektrochemische Zellen mit Flüssigmetallelektroden werden seit Langem zur Bestimmung thermochemischer Stoffwerte (Aktivitäten) eingesetzt. Neue Anwendungsgebiete liegen im Einsatz als Stromspeicher (Flüssigetallbatterien) und als Energiewandler (AMTEC). Die Vorteile der Flüssigmetalle liegen dabei im einfachen Aufbau der Zellen, der schnellen Kinetik an den Grenzflächen sowie den langen Lebensdauern und hohen Zyklenzahlen der flüssigen Elektroden.

Forschungsthemen und Experimente

Foto: Scheme liquid metal battery (English) ©Copyright: ©Tom Weier, Michael Nimtz

Liquid Metal Batteries

Liquid metal batteries, i.e. batteries in which both electrodes as well as the electrolyte are in the liquid state, are a ­very promising concept for economic storage. If abundant and cheap active materials can be used in large cells, the predicted total costs per unit stored energy are low and quite competitive.
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Foto: Battery Laboratory with Glovebox ©Copyright: Dr. Michael Nimtz

Battery Laboratory

Our battery lab enables the electrochemical investigation of liquid metal electrodes and molten salt electrolytes.
For experiments, small cells are build and tested under argon atmosphere in the glove box.
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Foto: TI aspect ratio ©Copyright: Dr. Norbert Weber

Instabilities in Liquid Metal Batteries

Fluid flows in liquid metal batteries influence their efficiency, but also their safe operation crucially.
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Foto: Glove box battery laboratory ©Copyright: ©Michael Nimtz

Experiments with Liquid Metal Battery Cells

In the battery laboratory, different types of cells and different chemistries are tested. Activities, efficiencies and corrosive properties are examined.
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Foto: Experiment interfacial waves ©Copyright: ©Michael Nimtz

Experimental Investigation of Orbitally Excited Interfacial Waves in Two- and Three-Layer Systems

Interfacial instabilities have a leading role in the wide field of Magnetohydrodynamics. This instability is driven by a complex interaction of strong currents with external magnetic fields.
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Foto: AMTEC-D Scheme ©Copyright: ©Clemens Kubeil

AMTEC-D – Alkali-Metal-Thermo-Electric-Con­ver­ter - Type Dresden

Direct energy con­version of heat to electric power with Alkali-Metal-Thermo-Electric-Con­verters (AMTEC) helps to increase resource efficiency and offers various flexible applications. We develop an alternative AMTEC based on liquid metal electrodes to improve life time and performance.
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Contact

Dr. Tom Weier
Magnetohydrodynamics
t.weierAthzdr.de
Phone: +49 351 260 2226, +49 351 260 2013
Fax: +49 351 260 12226, +49 351 260 12013, +49 351 260 2007