By combining a SnO<sub>2</sub> thin film with silicon dioxide microchannel plate (SiO<sub>2</sub>-MCP), a three-dimensional (3D) structure with enough space to accommodate the volume change of SnO<sub>2</sub> during charging-discharging is produced by MEMS and electroless deposition. Owing to the special structure of the MCP, the battery is able to deliver a reversible Li storage capacity of 408 mAhg<sup>-1</sup> after 100 cycles. If the current density is reduced to 200 mAg<sup>-1</sup> at a constant current during charging and discharging, the battery exhibits reversible capacities of 1575 and 996 mAhg<sup>-1</sup> in the first discharging and charging cycle, respectively. However, a reversible Li-storage capacity of only 298 mAhg<sup>−1</sup> is obtained after 50 cycles of deep charging at a current of 200 mAg<sup>−1</sup>. It is found that silicon is involved in the charging-discharging process at a low current.