Changelog - Breathe Simulate MATLAB Simulink/Simscape releases

[4.3.3] - 02/10/2026

First and second order ECMs now take capacity look-up tables instead of time-constant look-up tables, and use polarisation voltage as the state.
ECM look-up tables are clipped at their bounds instead of extrapolating.

Create_Max_Pulse_Current_LUT now applies a cathode potential upper limit (vCathodeMax_V, required) alongside the anode potential threshold and the terminal voltage cutoffs.
Create_Max_Pulse_Current_LUT: the dlFactor keyword voltFirstAnodeSteady is renamed voltFirstElectrodeSteady, and the output kappaAnode is renamed kappaElectrode.
The pulse heating design study now applies and plots the cathode potential limit.

High-frequency pulse heating example, covering the choice of pulse frequency and the maximum safe pulse amplitude.
Create_Max_Pulse_Current_LUT to compute the maximum zero-mean pulse amplitude at each temperature and SOC, subject to the terminal voltage cutoffs and an anode potential threshold.
Plot_Total_Resistance_Vs_Frequency to show the frequency dependence of total cell resistance.
Overpotential versus frequency example, comparing the terminal, cathode and anode voltage swings at a fixed pulse amplitude.

Raised the cap on the diffusion C-rate exponent so that fast voltage steps cannot destabilise the solver.

Anode potential now relaxes correctly under high-frequency pulsing.
Setting cvRampDuration = 0 now gives a true constant-voltage entry with no ramp.

The third order ECM and thermally-coupled ECM (TECM) accept an initial hysteresis state as an input parameter.

Cell-to-cell capacity variation (capacityChangePercent) in the LFP physics-based models.
Cell resistance output (resModel) on the new out_res bus.

First and second order thermally-coupled equivalent circuit models (TECM), including hysteresis dynamics.
LFP submodels, packaged with BMJN parameter files.
The model now raises an error when given an incompatible BMJN file.
Assemble_ECM_Parameters to assemble ECM parameter sets from physics-based model outputs.
Thermal parameters (Get_Thermal_Parameters) included in the parameter set.

Construct_Full_Cell_OCV supports LFP models.
Each block displays a title showing which type of model it contains.
Extended PulseTestEmulator and refined the EcmParamEstimator and Assemble_ECM_Parameters workflows.

Included Read_BMJN_Meta() function to get BMJN parameter file meta information
Minor updates to notebook examples demonstrating functions

Included Print_BMJN_Info() functionality to print and display BMJN parameter file info

Provided Breathe optimisation functions to derive 2RC ECM parameters from synthetically generated data.
Introduced redefinition of anode potential to accurately represent the interface between anode and separator

Enabled users to easily switch between cell parameter sets inside of the Breathe Simulate Block via a Breathe Simulate JSON file.
Launched the ability to generate synthetic data for optimisation of ECN models.

Launched the ability to simulate battery cells in a degraded state through the ability to define LLI, LAMNE, and LAMPE values.
Made improvements to our parameterisation process, both in experimental and optimisation procedures to enable the support of degradation mode specification.

Breathe Simulate is released.
The first version of the Breathe's desktop simulation physics based model includes an adapted Thermally coupled Single-Particle Model with electrolyte (TSPMe model).
Launched with support for cell chemistries that exhibit voltage hysteresis, such as Si-graphite composite anodes.
Breathe Simulate has been successfully parameterised, validated, and tested for robustness with large format prismatic cells and the 21700 Molicel P45B.

Version 743d2904