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From: High performance, low-cost rechargeable aluminum ion battery using Nb2CTx-MoS2 composite cathode

Figure 3. The structural analysis and morphology of cathode after the charge-discharge process (A) Ex-situ XRD patterns for composite cathode after 10th and 500th charge/discharge cycles, (B) Raman spectra of the cathode at the 10th and after 500th cycle showing the changes in electrolyte chemistry, (C) FE-SEM images represent the cathode morphology after 500 cycles, (D) shows the high-resolution FE-SEM images after 500th cycle.