D_PbII 0.7e-9[m^2/s] Pb ion diffusion coefficient in electrolyte D_H 9.3e-9[m^2/s] Proton diffusion coefficient in electrolyte D_HSO4 1.33e-9[m^2/s] HSO4- diffusion coefficient in electrolyte T 300[K] Temperature c0_PbII 500[mol/m^3] Initial Pb ion concentration c0_H 500[mol/m^3] Initial proton concentration p_out 300[kPa] Outlet pressure U_in 0.023[m/s] Inlet velocity i_app 200[A/m^2] Applied current density V 1.5e-3[m^3] Tank electrolyte flow volume k0_Pb 2.1e-7[m/s] Rate constant for negative electrode reaction k0_PbO2 2.5e-7[m/s] Rate constant for positive main electrode reaction K0f K0b*100000 Forward rate constant, PbO reaction K0b 4.5e-7[mol/m^2/s]/10 Backward rate constant, PbO reaction t_charge 3600[s] Charge time t_discharge 3600[s] Discharge time t_rest 60[s] Resting time L 0.1[m] Cell thickness E0_pos 1.8-R_const*T/(2*F_const)*(log(max(eps^2,c0_PbII/(1000[mol/m^3])))-4*log(max(eps^2,c0_H/(1000[mol/m^3])))) Initial positive electrode electric potential E0_neg 0+R_const*T/(2*F_const)*log(max(eps^2,c0_PbII/(1000[mol/m^3]))) Initial negative electrode potential i0ref_neg F_const*k0_Pb*1[mol/l] Reference exchange current density, negative electrode reaction i0ref_pos F_const*k0_PbO2*1[mol/l] Reference exchange current density, positive main electrode reaction Eeq_pos 1.8[V] Equilibrium potential, positive main electrode reaction