fig5

Figure 5. Operando XRD analysis of pristine NFM and NFM@1%MgF₂ during the initial charge-discharge process at 0.1C within 2.0-4.0 V, together with the electrochemical performance of the corresponding full cell. (A and B) Charge-discharge profiles and corresponding operando XRD patterns of the NFM and NFM@1%MgF₂ electrodes. (C) Initial two-cycle capacity-voltage profiles of the NFM@1%MgF₂||HC full cell at 0.1 C in the voltage range of 1.5-4.0 V. The specific capacity is calculated based on the mass of cathode materials. (D) Cycling performance of the NFM@1%MgF₂||HC full cell at 1C for 100 cycles.