Z_ground liion.Zvsgrnd_pot1 "Impedance vs ground" Z_ref_NCA (lindev(liion.phisbnd)-lindev(liion.phisref_refel1))/lindev(liion.nIsg_pot1) "Impedance (NCA) positive electrode vs reference" Z_ref_LTO Z_ground-Z_ref_NCA "Impedance (LTO) negative electrode vs reference" E_cell_init mat3.def.Eeq(soc0_pos)-mat2.def.Eeq(soc0_neg) "Initial cell voltage"