BeginnerMATLAB R2026a

Li-ion cell charge/discharge: four commercial cells

Compare Samsung, LG, Panasonic and A123 cells side by side under different currents and temperatures.

Discharge curves at different C-rates — Discharge at different C-rates

Four-cell comparison

Discharge at different temperatures — Effect of temperature

Aim

Characterise four commercial Li-ion cells (NMC, NCA, LFP) with 2-RC equivalent-circuit models, running CC and CC–CV tests across C-rates and temperatures.

What you’ll learn

Equivalent-circuit cell models (OCV, R0, RC pairs)
How C-rate and temperature change capacity and voltage
CC–CV charging
Self-heating and why chemistry matters (NMC vs NCA vs LFP)

Try it here

An interactive illustration of the idea behind this experiment.

Li-ion cell charge and discharge

Cell

C-rate1.0 C = 4.9 A

State of charge

100 %

Terminal voltage

4.08 V

Current

4.90 A

Heat in cell (I²R)

0.60 W

Simplified illustration for learning. Run the MATLAB model for exact, physics-based results.

How to run it in MATLAB Online

Unzip the package we send you.
Go to matlab.mathworks.com and sign in (campus licence or MathWorks trial).
In MATLAB Drive, click Upload and choose the unzipped folder.
In MATLAB Online, open the folder and double-click the model (.slx) or run the start script named in README.
Press Run. Results appear in the scopes, dashboard or figures.

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