Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

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.