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Mass Transport and Electrochemical Reaction in a Fuel Cell Cathode

Application ID: 458


A stationary 3D model of a generic fuel cell cathode describing the mass fraction distribution of oxygen, water, and nitrogen, as well as the current distribution.

The model uses Darcy's Law to describe convection, and couples this to Maxwell-Stefan diffusivities to also describe mass transport.

The model shows that the current density in this fuel cell cathode is mass transfer governed by the reactant.

This model is included as an example in the following products:

Batteries & Fuel Cells Module

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.