BattMo: A Flexible Battery Modelling Toolbox for Simulating Electrochemical Cell Performance
Researchers have introduced BattMo, a MATLAB-based finite volume modelling framework for simulating electrochemical battery cells across multiple chemistries and 3D geometries. The toolbox builds on the Doyle-Fuller-Newman model, incorporates thermal and degradation simulations, and uses JSON schemas aligned with the Battery Interface Ontology to promote data interoperability. It is intended to lower barriers to battery simulation research by enabling gradient-based parameter optimization and modular model design.
BattMo (Battery Modelling Toolbox) is a flexible continuum modelling framework implemented in MATLAB that allows researchers to simulate the performance of electrochemical cells under a range of battery chemistries, including composite materials such as silicon-graphite anodes. The toolbox supports 3D cell geometries including cylindrical and prismatic designs, and incorporates fully coupled thermal simulations as well as degradation mechanisms like solid-electrolyte interphase (SEI) layer growth. Simulation parameters are specified via JSON schemas following the Battery Interface Ontology (BattINFO) guidelines, aligning the tool with FAIR (Findable, Accessible, Interoperable, Reusable) data principles. Models are structured hierarchically as computational graphs, where variables and their functional relationships are represented as nodes and edges, facilitating modularity and extensibility. The solver employs automatic differentiation and supports adjoint computation, enabling efficient gradient-based optimization for calibrating model parameters against experimental data. The paper has been submitted to the Journal of Open Source Software (JOSS), signaling an intent to make the toolbox a community resource.
What's missing
The paper does not report benchmark validation results comparing BattMo predictions against experimental datasets, nor does it discuss computational performance or scalability for large 3D simulations.
What different sources said
- arXiv physicsCenter
BattMo -- Battery Modelling Toolbox
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