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Redox flow batteries

Vanadium a favourite

Researchers are particularly interested in vanadium redox flow batteries. Here vanadium in different oxidation levels is fed to the two electrodes in the energy converter. In contrast to pairing materials with different salts, this prevents mutual contamination of the two electrolytes. This enables very robust and durable batteries to be constructed. The energy density is similar to lead-acid batteries.

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The photo shows the test arrangement for a vanadium redox flow cell at Fraunhofer ICT.

© FIZ Karlsruhe GmbH

Supported by: The Federal Government on the basis of a decision by the German Bundestag

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