Figure 2 | Scientific Reports

Figure 2

From: Na-rich layered Na2Ti1−xCrxO3−x/2 (x = 0, 0.06): Na-ion battery cathode materials with high capacity and long cycle life

Figure 2

Electrochemical performances of Na2TiO3 and Na2Ti0.94Cr0.06O2.97. (a,b) Voltage profiles of Na2TiO3 and Na2Ti0.94Cr0.06O2.97. (c,d) dQ/dV plots of Na2TiO3 and Na2Ti0.94Cr0.06O2.97. (e,f) Cycling performance with Coulombic efficiency of Na2TiO3 and Na2Ti0.94Cr0.06O2.97 at current density of 18.9 mA g−1. (g) Rate capabilities of Na2TiO3 and Na2Ti0.94Cr0.06O2.97 at current density from18.9 mA g−1 to 3780 mA g−1.

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