Figure 2
From: Carbon wrapped hierarchical Li3V2(PO4)3 microspheres for high performance lithium ion batteries

(a) XRD patterns of the CW-LVP hierarchical microspheres prepared after annealing. (b) and (c) SEM images of the CW-LVP hierarchical microspheres. (d) Raman spectra of the CW-LVP hierarchical microspheres. (e) SEM image of the exterior 3D carbon network after totally removing the LVP microspheres by HCl. (f) The SEM image of the interior LVP hierarchical microspheres prepared by removing the PVP-based hydrogels.