Python Battery Mathematical Modelling (PyBaMM)

Published June 8, 2021 | Version 22.9

Software Open

Features

Added function pybamm.get_git_commit_info(), which returns information about the last git commit, useful for reproducibility (#2293)
Added SEI model for composite electrodes (#2290)
For experiments, the simulation now automatically checks and skips steps that cannot be performed (e.g. "Charge at 1C until 4.2V" from 100% SOC) (#2212)

Bug fixes

Arrhenius function for nmc_OKane2022 positive electrode actually gets used now (#2309)
Added SEI on cracks to loop over all interfacial reactions (#2262)
Fixed X-averaged SEI on cracks concentration so it's an average over x only, not y and z (#2262)
Corrected initial state for SEI on cracks (#2262)

Optimizations

Default options for particle mechanics now dealt with differently in each electrode (#2262)
Sped up calculations of Electrode SOH variables for summary variables (#2210)

Breaking changes

When creating a pybamm.Interpolant the default interpolator is now "linear". Passing data directly to ParameterValues using the [data] tag will be still used to create a cubic spline interpolant, as before (#2258)
Events must now be defined in such a way that they are positive at the initial conditions (events will be triggered when they become negative, instead of when they change sign in either direction) (#2212)

Notes

If you use PyBaMM, please cite it as below.

Name	Size	Download all
pybamm-team/PyBaMM-v22.9.zip md5:58bf609fee5aad686cad190e248ab2d3	13.7 MB	Preview Download