Figure 14.
Structural characterization and electrochemical performance analysis of PI/MWCNT composite as a cathode in SIBs. (a) SEM images demonstrating a 3D network of fibers as the morphology of the PI/MWCNT fibers. (b) TEM image exhibiting the fiber network in greater detail. (c) XRD pattern of the PI/MWCNT fiber composite in comparison with its precursors with the characteristic peaks being visible. (d) Schematic reaction map depicting the synthesis of the PI/MWCNT nanocomposite. (e) Galvanostatic charge–discharge graphs of the PI/MWCNT composite as cathode in the SIB. (f) Capacity retention for the composite cathode for both charge and discharge cycles. (g) Rate performance of the PI/MWCNT cathode demonstrating almost all capacity retention when the rate is switched back to lower values. Copyright 2018, American Chemical Society.