Figure 5From: Hollow Nanostructured Anode Materials for Li-Ion Batteries a SEM image of V2O5–SnO2 double-shelled nanocapsules. Inset shows the schematic structure of these double-shelled nanocapsules. The red spheres represent SnO2 nanocrystals and the green double shells represent the V2O5 matrix; b low-magnification TEM images; c, d high-magnification TEM images indicate that the porous shell consists of a great deal of nanocrystals with the thickness of R 1 ≈ R 2 = 90 nm; e–g HRTEM images revealing lattice planes of V2O5 matrix and SnO2 nanocrystals; h SAED pattern taken from individual nanocapsules which shows that these nanocapsules are polycrystalline. Reproduced with the permission of American Chemical Society from [46]Back to article page