不同形貌结构SnO_2/C复合材料的可控合成

Morphology-Controlled Synthesis of SnO_2/C Composite

Sn O2理论上的可逆锂贮存容量为790 m Ah/g,这是当前使用的石墨的理论容量372 m Ah/g的两倍以上,然而其循环性能较差。研究发现,Sn O2和碳基体的复合可以有效的改善其循环性能,文章综述了的不同形貌结构的Sn O2/C复合材料的可控合成,以及分析总结了其形貌对其可逆容量和循环性能的影响。

The theoretical reversible lithium storage capacity of SnO2 is 790 mAh/g, which is more than twice the theoretical capacity 372 mAh/g, for currently used graphite. But the material has poor capacity retention over extended charge/discharge cycling. In resent years, SnO2 with carbon has been found effective for improving cyclability. This paper reviewed how to synthesis different morphologies SnO2/C composites. The effects of the various morphologies on their electrochemical properties are also analyzed.