fig2

Figure 2. Characterization of the separators: (A) FTIR spectra of PP, PP-PEO_60w, PP-PCL_5w and PP-blended PEO_60w/PCL_5w separators; (B) Cross-sectional SEM images and the corresponding EDS element mapping of C and O of the PP-blended PEO_60w/PCL_5w; Top-view SEM images of PP separator (C) and PP-blended PEO_60w/PCL_5w separator with the coated surface (D) and uncoated surface (E).