fig4

Figure 4. Heat map of original in-situ XRD patterns under 0.5C charge/discharge: (A) pure LFP cathode, (B) LMC@3_1 cathode. Whole pattern fitting and Rietveld refinement results of original in-situ XRD patterns at different SOC under 0.5C charge/discharge: (C) mass fraction of LiFePO₄ and FePO₄, (D) lattice parameter b of LiFePO₄ and FePO₄. Whole pattern fitting and Rietveld refinement results of original in-situ XRD patterns at the end of 2C charge and discharge: (E) end of 2C charge for pure LFP, (F) end of 2C discharge for pure LFP, (G) end of 2C charge for LMC@3_1, (H) end of 2C discharge for LMC@3_1.