Modeling Batteries Across Different Scales and Chemistries
Using COMSOL Multiphysics with the add-on Battery Design Module, you can model various battery chemistries at different scales. Here, a general introduction to battery modeling is provided, including the different types of analyses you can conduct and best practices when setting up an electrochemical battery model.
Discussion & Demo: Modeling Batteries
We begin with an introduction to the Battery Design Module and the expanded capabilities and features it provides for conducting different types of analyses of batteries. This includes modeling batteries at the microscale, cell scale, lumped scale, and packed scale, for which we discuss the motivation for modeling using each type of scale. We then provide an overview of the different battery chemistries that you can model, including certain types that are available as predefined options as well as custom, user-defined options. This is followed by a discussion of the basics of building a battery model and important, relevant concepts, such as the State of Charge. The importance of using an iterative approach and incrementally building up model complexity is reiterated throughout.
A model demonstration is performed showing how to take the geometry of a 3D, heterogenous model of a battery and convert into a 1D, homogenous model.
- Overview of Battery Design Module
- Overview of modeling scales and battery chemistries
- Introduction to setting up an electrochemical battery model
- Overview of various modeling aspects and concepts
- Overview of Lithium-Ion Battery Interface
- Demo: Homogenizing a Battery Model (model available here)
- Overview of 3D model geometry to 1D
Further Learning
For more information, further practice, and additional demonstrations on battery design, we recommend the following resources:
- Tutorial Models:
- Learning Center
- Blog Posts:
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