fig5

Figure 5. TEM images of (A) NCM622 and (B) NCM622-La@LLO after 200 cycles, where I^a, II^a, III^a, I^b, II^b and III^b are the fast Fourier transform conversion graphs of the corresponding regions. Surface morphologies of (C) NCM622, (D) NCM622-La and (E) NCM622-La@LLO after 200 cycles. (F) C1s, (G) O1s and (H) F1s XPS spectra of NCM622, NCM622-La and NCM622-La@LLO after 200 cycles.