Size effect of Si particles on the electrochemical performances of Si/C composite anodes Project supported from the “Strategic Priority Research Program” of the Chinese Academy of Sciences (Grant No. XDA09010102). |
(color online) Internal morphology evolutions of the Si/C composites after different numbers of cycles at the cut-off voltage of 1.0 V: (a) 30-nm, (b) 100-nm, (c) 500-nm, and (d) 3-μm Si/C. The scale bar corresponds to 5 μm. |