Interplay of solutal convection and electromagnetically driven flows in liquid metal battery electrodes


Interplay of solutal convection and electromagnetically driven flows in liquid metal battery electrodes

Weier, T.; Landgraf, S.; Nimtz, M.; Personnettaz, P.; Weber, N.; Sadoway, D.

Mass transfer in the positive electrode is one of the main factors determining the efficiency of liquid metal batteries. While solutal convection is quite intense during charge, discharge rates are limited by diffusion into a stable density stratification. The resulting concentration polarization can be substantially reduced if electrodynamically driven flows are employed to stir the liquid alloy. This leads to marked improvements in battery performance.

Keywords: solutal convection; electro-vortex flow; mass transfer; liquid metal battery

  • Lecture (Conference) (Online presentation)
    25th International Congress of Theoretical and Applied Mechanics, 22.-27.08.2021, Mailand, Italien

Permalink: https://www.hzdr.de/publications/Publ-30571
Publ.-Id: 30571