Comparison of emf Ecathode ) Eanode(V) emf (V) Alkaline 0.15 1.28 1.43 Lead acid 1.68 -0.36 2.04 Ni-Cd 0.49 -0.81 1.30 Ni-MH 0.52 -0.82 1.34 Li batteries -3.05 >3 Li batteries have the highest emf-high energy output! 1313 Comparison of emf Eo cathode (V) Eo anode (V) emf (V) Alkaline 0.15 1.28 1.43 Lead acid 1.68 -0.36 2.04 Ni-Cd 0.49 -0.81 1.30 Ni-MH 0.52 -0.82 1.34 Li batteries - -3.05 > 3 Li batteries have the highest emf → high energy output!