Modeling the Influence of Particle Shape on Mechanical Compression and Effective Transport Properties in Granular Lithium‐Ion Battery Electrodes

The calendering step during manufacturing of lithium-ion batteries is an essential process in the production, as it significantly influences microstructure electrodes and, therefore, performance battery. Within this context, article investigates influence particle shapes on micromechanical responses turn, their impact effective transport properties battery electrodes. are modeled using discrete elements. For reason, a novel algorithm for generation random stress-free assemblies consisting superellipsoids presented. conductivities solid and pore phase calculated with resistor network approach. In new analytical formula calculating individual resistance between two mechanically deformed ellipsoidal particles Furthermore, geometrical approach chosen resistances throats superellipsoidal assemblies. With theoretical fundamentals, phases uniaxially compressed investigated. mechanical response its evolution discussed. deeper insight into interplay electrode can be helpful information regarding specific design.