Fig. 2: Long cycling performance of 600°C-synthesized P3-type Na2/3Cu1/3Mn2/3O2 at 10 mA/g.
From: Stabilizing lattice oxygen redox in layered sodium transition metal oxide through spin singlet state
a Cycling performance of 600°C-synthesized P3-type Na2/3Cu1/3Mn2/3O2 sample with a specific current of 10 mA/g (between 2.5 V and 4.1 V for 100 cycles, versus Na+/Na). b The typical charge and discharge profiles of P3-type Na2/3Cu1/3Mn2/3O2 at different cycles in the voltage window between 2.5 V and 4.1 V. c The charge, discharge capacity and the Coulombic efficiency (CE) change during 100 cycles in the voltage range around 1st 3.66 V plateau and 2nd 3.99 V plateau. d The differential voltage (dQ/dV) curves of the corresponding cycles in (b).
