PyBEP logo PyBEP Battery electrode potentials calculator

Run optimization

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Choose a battery OCV curve and the reference electrodes to compare it against.

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No file selected.
The measured full-cell curve you want decomposed: two columns, state of charge and voltage, as .txt, .csv or .xlsx.
Cathode candidates ?
Built-in curves 7 of 7 selected
view curve LFP-10.1149_1.3567007
view curve LFP-10.1149_2.064209jes
view curve NMC111-10.1149_2.062204jes
view curve NMC523-10.1149_2.1701713jes
view curve NMC622-10.1016_j.electacta.2020.137428
view curve NMC811-10.1016_j.xcrp.2020.100253
view curve NMC811-LICeM
These 7 reference curves are built in and ready to use — untick any you don't want compared.
Your own files None added
No files selected.
Only needed for a curve that isn't in the list above: two columns, state of charge and voltage, as .txt, .csv or .xlsx. Picking again adds to the ones already here. Uploaded files are used for this run only — they are not added to the list.
Anode candidates ?
Built-in curves 2 of 2 selected
view curve Graphite-10.1016_j.xcrp.2020.100253
view curve Graphite-10.1038_srep32639
These 2 reference curves are built in and ready to use — untick any you don't want compared.
Your own files None added
No files selected.
Only needed for a curve that isn't in the list above: two columns, state of charge and voltage, as .txt, .csv or .xlsx. Picking again adds to the ones already here. Uploaded files are used for this run only — they are not added to the list.

Fitting

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Value: 1
More iterations give more consistent results but take longer.
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Value: 1.00
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Value: 0.00
The two weights always add up to 1 — moving one moves the other.
Running the optimization
This takes a while. The results appear on their own when it finishes.
Stopped waiting. The server may still finish that run on its own — starting another one writes over it.

Which column is which?

Your results appear here

Choose a battery OCV curve and the electrodes to compare it against, then press Run optimization. The graph, the best-matching pair and the download buttons all land in this panel.

The form stays where it is, so you can move a slider and run again with the last graph still beside it.

The optimization can take a while — leave this tab open while it runs.