Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi_1/3Mn_1/3Co_1/3O₂

Figure 4

(a) Charge/discharge curves of the P2/P3-NaNMC electrode at a current density of C/10. (b) Discharge capacity and Coulombic efficiency versus cycle number for the electrode. (c) Voltage profile of material at various current densities. (d) The rate capability of the electrode.

(a)

(b)

(c)

(d)