original_parameterization

Since its first release back in 2016, LIONSIMBA has undergone several bug fixes, improvements and new releases.

The different advances brought together also some modifications to the original parameterization of the model that was presented in the related Journal paper.

This page wants to summarize the main parameters that were modified, and provides a reference to allow the interested user in replicating the results of the literature paper.

Since version 2.0, LIONSIMBA has introduced stoichiometric limits for cathode and anode, that are reported in the code with the following variables inside the Parameters_init.m file:

% Stoichiometry Limits
param.theta_max_pos = 0.49550;  % at 100% cell SOC
param.theta_max_neg = 0.85510;  % at 100% cell SOC
param.theta_min_pos = 0.99174;  % at 0% cell SOC
param.theta_min_neg = 0.01429;  % at 0% cell SOC

Invoking the Parameters_init.m file with these values will generate intial solid concentration of ions not consistent with the version of the code that was used to show some of the results on the related paper.

For this reason, the interested user, should apply the following modifications after calling the Parameters_init.m file.

param{1}.cs_p_init=25751;
param{1}.cs_n_init=26128;

param{1}.theta_max_neg = 1;
param{1}.theta_min_neg = 0;

Moreover, from version 2.0 the Parameters_init.m script accepts as input the initial SOC value (as percentage). The default value (if not provided by the user) is set to 85.51% (which corresponds to the initial SOC of the version presented on the paper).

Acknowledgements to Dr. Alireza Qaderi for highlighting this point.