In the Constituent Materials tab, the mechanical properties of all materials are defined for the deformation simulation. Select the appropriate materials.

Mechanical Properties

For all active materials of the battery cell, choose the Material Law Lithium Intercalation to account for expansion of the material due to changes in the local lithium concentration. The GeoDict Material Database currently provides the materials Graphite, NMC333, NMC532, NMC622, NMC811, LNO, and Silicon with the Material Law Lithium Intercalation.

For all other solid materials, mechanical properties (Young’s modulus and Poisson ratio) need to be defined for the simulation. All Material Laws that are available in ElastoDict, can be used in a degradation simulation as well. Click View, on the right of the mechanical properties shown, to see the parameters defined in the layout of the GeoDict Material Database or click the icon to see the parameters as a report.

For Manual materials you can add and remove material laws via the and icons. This is useful, if you run different simulations one after the other using different mechanical properties for one of the materials. Click Edit and set the Type to UMAT. Edit the parameters as described here.