天津工业大学学报2017,Vol.36Issue(3):49-53,5.DOI:10.3969/j.issn.1671-024x.2017.03.010
直径大小对SnO2棒锂离子电池负极材料性能的影响
Influences of diameter of SnO2 rods on properties of anode in Li-ion batteries
摘要
Abstract
In order to studied the effect of the different diameters SnO2 micro/nanorods on their lithium storage properties, a facile hydrothermal method to synthesize SnO2 micro/nanorods with various diameters were developed from tin (Ⅳ) chloride pentahydrate(SnCl4·5H2O) and NaOH by changing hydrothermal temperature, hydrothermal time, reactant concentration. The structures and their electrochemical properties of as-synthesized SnO2 rods are inves-tigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM), cyclic voltammetry, charge-discharge cycling and electrochemical impedance spectra, respectively. The results demonstrate that SnO2 nanorods with a diameter of 70 nm(sample B) have the best electrochemical properties with a first Coulomb effi-ciency of 61.36%and a specific capacity of 405.8 mAh/g after 30 cycles.关键词
SnO2/纳米棒/负极材料/锂离子电池/电化学性能Key words
SnO2/nanorods/anode/Li-ion battery/electrochemical property分类
信息技术与安全科学引用本文复制引用
何声太,韩璐,王泽中,石刚,高海,吴垚震..直径大小对SnO2棒锂离子电池负极材料性能的影响[J].天津工业大学学报,2017,36(3):49-53,5.基金项目
国家重大科学研究计划资助项目(2012CB933301) (2012CB933301)