Abstract

Lithium-sulfur batteries appear to be an exciting technology for energy storage due to their many advantageous properties. Due to its low weight and high energy, this technology could be used in aviation, aerospace or in heavy electric vehicles or even for mobile applications. This article investigates possible approaches for modelling of lithium-sulfur batteries. A new method using Ansys Fluent add-on Multi-Scale Multi-Domain battery module, originally designed for lithium-ion batteries, is presented. Battery characteristics are described through an equivalent circuit model, which can capture its complex characteristics. The results suggest that the built-in Ansys Fluent model can be successfully extended for 3D modelling of lithium-sulfur batteries. The critical point of the simulation is the precise definition of equivalent circuit model parameters.

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