Lattice Boltzmann Simulation of Flow, Transport, and Reactions in Battery Components

Martin P. Lautenschlaeger (), Julius Weinmiller, Benjamin Kellers, Thomas Jahnke, Timo Danner and Arnulf Latz
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Martin P. Lautenschlaeger: SDU Mechatronics, Department of Mechanical and Electrical Engineering, University of Southern Denmark (SDU)
Julius Weinmiller: Institute of Engineering Thermodynamics, German Aerospace Center (DLR)
Benjamin Kellers: Institute of Engineering Thermodynamics, German Aerospace Center (DLR)
Thomas Jahnke: Institute of Engineering Thermodynamics, German Aerospace Center (DLR)
Timo Danner: Institute of Engineering Thermodynamics, German Aerospace Center (DLR)
Arnulf Latz: Institute of Engineering Thermodynamics, German Aerospace Center (DLR)

A chapter in High Performance Computing in Science and Engineering '22, 2024, pp 449-462 from Springer

Abstract: Abstract Microstructures of battery components largely affect electrochemical properties of the whole battery cell. In this context, especially physical phenomena occurring in their pores play a dominant role. However, experimental studies of these phenomena are hardly feasible. Therefore, the lattice Boltzmann method is applied to provide a detailed insight into the relevant processes at the pore scale. The following topics are covered: (1) electrolyte filling of structurally resolved lithium-ion battery electrodes, (2) impact of gas entrapment on battery performance, (3) development and validation of a new model for multi-phase flow in homogenized porous media, (4) chemical surface reactions, and (5) species transport in dynamically changing microstructures. The results give a first insight into how battery performance can be optimized by adapting structural and physico-chemical properties as well as process parameters.

Date: 2024
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DOI: 10.1007/978-3-031-46870-4_29

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