Investigation of Electrical Surface Film in the Macroporous Silicon-based Anodes in Lithium ion Batteries

Silicon macroporous as an attractive anode for rechargeable lithium ion Batteries was synthesized via magnesiothermic reduction. Purity and honeycomb morphology of the macroporous silicon were confirmed by XRD and FE-SEM analyses. The electrochemical results showed the pseudo capacitive behavior of silicon at 10 mV/s scan rates, assigning to store electrostatically electrons on the silicon surface.