Z_ground -lindev(phis)/lindev(liion.nIs)+linpoint(R_curr) "Impedance vs ground" Z_ref_NCA -(lindev(phis)-lindev(RE_phi))/lindev(liion.nIs)+linpoint(R_curr) "Impedance (NCA) positive electrode vs reference" Z_ref_LTO Z_ground-Z_ref_NCA+linpoint(R_curr) "Impedance (LTO) negative electrode vs reference" E_cell_init mat3.def.Eeq(soc0_pos)-mat1.def.Eeq(soc0_neg) "Initial cell voltage"