Hollow Nanotubular SnO_2 Templated by Cellulose Fibers for Lithium Ion Batteries

An effective method of using cellulosic substances(filter paper) as template was employed to prepare SnO2nanotubular materials examined as anode for Li-ion battery. According to XRD, SEM, TEM and HR-TEM analysis,the synthesized nanotubular materials retained morphological hierarchy of the filter paper, and each nanotube was composed of nano-sized SnO2ranged from 5 nm to 15 nm. At the same time, the N2adsorption/desorption tests show that the materials are mesoporous structure. It exhibits a stable reversible capacity of 580 mAh/g at constant current density of 100 mA/g, and the reversible capacity remains at 550 mAh/g after 60 cycles, showing a high reversible capacity and stable cycle performance as anode for Li-ion battery.