Fig. 3From: Transformation of sludge Si to nano-Si/SiOx structure by oxygen inward diffusion as precursor for high performance anodes in lithium ion batteriesTEM characterizations for the nano-Si/SiOx matrix sample. a Particle morphology. b Particle observation under high magnification shows the crystalline Si core and amorphous oxide surrounding. c STEM/EDX elemental mapping prove the miscible feature of Si and O. d Image of Si/C yolk/shell structureBack to article page