fig6

Figure 6. The SEM images of (A) LMNO and (B) LMNO-A after 400 cycles at 5 C. (C) The XRD patterns of LMNO and LMNO-A after cycles. The XPS spectra of (D) F 1s and (E) O 1s of LMNO and LMNO-A after cycles. The (F) EIS results of LMNO and LMNO-A after cycles at different charge states, (G) the value of Rct and (H) σ.