Ruiqing Liu, Ning Li, Deyu Li
Apr 15, 2012
Citations
0
Influential Citations
28
Citations
Journal
Materials Letters
Abstract
Abstract SnO2 hollow microspheres were synthesized by a facile template-free hydrothermal method combining with an annealing process, and sodium stannate trihydrate was used as precursor. The diameter of microspheres which were composed of nanoparticles with size of about 10 nm was in the range of 200–500 nm. As anode materials for lithium ion batteries, the initial reversible capacity of SnO2 hollow microspheres electrodes reached 997 mAh g− 1. The electrodes revealed a capacity of 406.5 mAh g− 1 up to 65 cycles exhibiting high lithium storage capacity and coulomb efficiency. The superior performance of the SnO2 hollow microspheres can be mainly attributed to hollow structure and small size of SnO2 nanoparticles, which reduce volume expansion and lithium diffusion length.