Thermal model
Thermal models predict heat flow and the resulting temperature distribution. Batteries generate heat, and are very sensitive to temperature changes. The result is that heat generated has a significant impact on the electrical/electrochemical properties of the cell - our spatially resolved thermal models can capture the impact of cooling strategy and predict cell temperature away from the cell surface.
Applications
Thermal management system design
Use these models to predict the temperature distribution throughout your pack, and use to design effective thermal management systems.
Cell Design
Use thermal models for optimising the thermal properties of the cell, to minimise temperature rise, hot spots, and harmful temperature gradients. Combine with electrical models to understand non-uniform current flow.
Fast charging
Evaluate charging profiles to check the temperature gradients and temperature hot-spots throughout the pack.
Cell selection
Compare the thermal performance of a range of cells.
Key features
2D and 3D temperature gradients
Model potentially harmful temperature gradients in multiple dimensions and observe how the heat dissipates throughout the cell.
Flexible boundary conditions
Add boundary conditions that are representative of your system - liquid cooling plate, free convection, fixed temperature or controlled heat flux.
Query temperature at any point
Use our user interface to probe the temperature at any point(s) you like, or extract the hottest point.
Industry-leading accuracy
We developed patent protected measurement methods to accurately measure the thermal properties. We overcome previous typical best-in-class error by around 50%.
Full model report
All of our models come with a full report detailing the model specification, parameters, implementation and validation. Use the table of parameters to import into the platform you need.
Works standalone
Our thermal models only need heat generation as an input, meaning there’s no requirement to couple them to an electrical model.
Easily create a pack
Simply drag and drop multiple blocks into your Simscape environment to model pack behaviour.
Integrate with electrical/electrochemical models
Our models plug together for electro-thermal simulation. Model how the increasing cell temperature changes the heat generation and voltage response of the cell.
Validation
Using our proprietary Peltier element controller we are able to validate our thermal models with tightly controlled boundary conditions ensuring accuracy.
Optional extras
Custom Validation
Do you have an extreme or specific use case and want peace of mind? We can run a custom validation to ensure the model is accurate when you need it.
Proprietary cells
We regularly test cells under NDA for some of the world’s most advanced companies.
Downloadable as
Look-up table
Parameters only
.png)
Simscape
Object file
BPX
Battery Parameter Exchange
What is a Thermal model?
Thermal models allow engineers to evaluate their design’s thermal management and pack safety. The 2D models capture temperature gradients axially and radially through the cell and the thermal performance is described using a 2D axisymmetric model. For pouch and prismatic cells, these are across each cardinal direction instead.
Predicts
Bulk temperature
Heat flux
Temperature distribution
Accounts for
Anisotropic thermal conductivity
Jelly-roll / can & cap structure
Ohmic heating in cap
User-specified thermal boundary conditions
_gif.gif)
Accuracy
Our best-in-class thermal models come fully validated. Check out the accuracy of our temperature predictions!
