Silicon-Encapsulated Hollow Carbon Nanofiber Networks as Binder-Free Anodes for Lithium Ion Battery

Figure 2

Magnified SEM images of hollow Si/C composites, (a) H-Si/C-1, (b) H-Si/C-3, (c) H-Si/C-5, and (d) H-Si/C-10. TEM images of hollow Si/C composites, (e) H-Si/C-1, (f) H-Si/C-3, (g) H-Si/C-5, and (h) H-Si/C-10 (insets in (g) and (h) are HRTEM images of H-Si/C-5 and H-Si/C-10, resp.).

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