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Fixed a bug where the SEI thickness decreased at some intervals when using the 'electron-migration limited' model. #3622

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merged 4 commits into from Jan 18, 2024
Merged

Fixed a bug where the SEI thickness decreased at some intervals when using the 'electron-migration limited' model. #3622

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ed6f04d
The 'electron-migration limited' model has been corrected by consider…
kawaMANMI Dec 14, 2023
066c340
Update pybamm/models/submodels/interface/sei/sei_growth.py
kawaMANMI Dec 15, 2023
e05da9d
Logical condition (eta_inner < 0) used instead pybamm.EqualHeaviside …
kawaMANMI Jan 18, 2024
3197432
Logical condition (eta_inner < 0) used instead pybamm.EqualHeaviside …
kawaMANMI Jan 18, 2024
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3 changes: 1 addition & 2 deletions pybamm/models/submodels/interface/sei/sei_growth.py
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Expand Up @@ -134,8 +134,7 @@ def get_coupled_variables(self, variables):
elif SEI_option == "electron-migration limited":
# Scott Marquis thesis (eq. 5.94)
eta_inner = delta_phi - phase_param.U_inner
j_sei = phase_param.kappa_inner * eta_inner / L_sei_inner

j_sei = pybamm.EqualHeaviside(eta_inner, 0) * phase_param.kappa_inner * eta_inner / L_sei_inner
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elif SEI_option == "interstitial-diffusion limited":
# Scott Marquis thesis (eq. 5.96)
j_sei = -(
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