An Approach for Suppressing Fluid Instabilities in Liquid Metal Battery with an Internal Structure

Abstract The instabilities of fluid in the liquid metal battery (LMB) can easily cause a short circuit and lead to safety accidents, which have become bottleneck LMB industrial applications. In this case, structure named grid-structure (GS) based on inner cavity has been used suppress instabilities. Based OpenFOAM-4 x numerical simulation, we analyzed critical electric potential basic structures, is introduced as threshold magnetohydrodynamic (MHD) We constructed GS with different number baffles. simulation results show that effectively change spatial distribution magnetic field flow field. And it improve charging/discharging efficiency enhance stability LMB. Simulation also baffles positive relationship effect suppressing MHD. This study helps determine influencing factors MHD proves universality GS.