Silver-coated silicon microchannel plates for three-dimensional lithium-ion batteries anodes

In this work,a three-dimensional(3-D) anode using a silver-coated Si microchannel plate(Si-MCP) as the active materials was prepared by photo-assisted electrochemical etching followed by electroless deposition.Using lithium foils as the counter electrodes,representative half-cells are fabricated and tested.In galvanostatic charge-discharge(C-D) measurements at 10 mA·g~(-1) between 0.02 and 1.5 V,our anode exhibits a charge capacity of 3484.7 mAh·g~(-1) with a coulombic efficiency close to 95.97%in the initial cycle.Based on the cyclicvoltammetry (CV) and the electrochemical impedance spectroscopy(EIS) data,the mechanism about the lithiation of Ag-coated Si-MCP was also studied.