Thermally driven convection in Li||Bi liquid metal batteries
arXiv:1805.11521 · doi:10.1016/j.jpowsour.2018.08.069
Abstract
Liquid Metal Batteries (LMBs) are a promising concept for cheap electrical energy storage at grid level. These are built as a stable density stratification of three liquid layers, with two liquid metals separated by a molten salt. In order to ensure a safe and efficient operation, the understanding of transport phenomena in LMBs is essential. With this motivation we study thermal convection induced by internal heat generation. We consider the electrochemical nature of the cell in order to define the heat balance and the operating parameters. Moreover we develop a simple 1D heat conduction model as wellas a fully 3D thermo-fluid dynamics model. The latter is implemented in the CFD library OpenFOAM, extending the volume of fluid solver, and validated against a pseudo-spectral code. Both models are used to study a rectangular 10x10 cm Li||Bi LMB cell at three different states of charge.
References in corpus (7)
- Sloshing instability and electrolyte layer rupture in liquid metal batteries
- How to circumvent the size limitation of liquid metal batteries due to the Tayler instability
- The influence of current collectors on Tayler instability and electro-vortex flows in liquid metal batteries
- Thermal Rayleigh-Marangoni convection in a three-layer liquid-metal-battery model
- Competing forces in liquid metal electrodes and batteries
- Electromagnetically driven convection suitable for mass transfer enhancement in liquid metal batteries
- Shallow water modeling of rolling pad instability in liquid metal batteries
Cited by in corpus (8)
- Cell voltage model for Li-Bi liquid metal batteries
- Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
- Layer coupling between solutal and thermal convection in liquid metal batteries
- Modelling Rayleigh-Bénard convection coupled with electro-vortex flow in liquid metal batteries
- Simulation of potential and species distribution in a Li||Bi liquid metal battery using coupled meshes
- Anode-metal drop formation and detachment mechanisms in liquid metal batteries
- Laboratory model of electrovortex flow with thermal gradients, for liquid metal batteries
- Realising large areal capacities in liquid metal batteries: a battery design concept for mass transfer enhancement