Electrode Utilization in a Large Format Lithium-Ion Battery Pouch Cell
Application ID: 60291
Large lithium-ion batteries are widely deployed in electric vehicles and for stationary energy storage applications. In the (stacked) pouch battery cell design, all current exits the cell on the cell “tabs”, and as the cell size and power increases, the voltage gradients in the highly conductive metal foil current collectors may come into play, resulting in a non-uniform current distribution and electrode utilization in the cell
A non-uniform utilization results in sub-optimal use of the battery electrodes and may also result in non-uniform and accelerated electrode aging.
This tutorial models the current distribution and electrode utilization in a large format lithium-ion battery pouch cell, and how it depends on the cell current. The model is in 3D.
This model example illustrates applications of this type that would nominally be built using the following products:Batteries & Fuel Cells Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Grille de Spécifications and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.