Enhancement of Electrochemical Stability about Silicon/Carbon Composite Anode Materials for Lithium Ion Batteries

Figure 4

(a) The voltage profiles of Si/C composites at 100 mA g⁻¹; (b) the charge-discharge cycling curves of the Si/C composite with and without ball milling at 100 mA g⁻¹; (c) initial charge-discharge curves of the composites at different rates; (d) cycling curves of the composites at different rates.

(a)

(b)

(c)

(d)