G@SnO_2@PPy复合材料的合成、表征及其储锂性能研究

Synthesis,characterizations and lithium storage performance of G@SnO_2@PPy composite

本文成功合成出新颖的G@SnO_2@PPy夹层型复合材料。通过XRD、SEM和TEM等手段详细表征了该复合材料的成分与形貌,并测试了其作为锂离子电池负极材料的电化学性能。结果表明,复合材料中SnO_2纳米颗粒均匀分布在石墨烯和导电聚吡咯夹层中,作为锂离子电池负极材料表现出优异的循环性能和良好的倍率性能。

A new G@SnO2@PPy composite with sandwich structure has been proposed in this paper. XRD,SEM,and TEM were used to characterize the composition,morphology and structure of this composite and the result shows that Sn O2 nanoparticles are uniformly distributed between the layers of graphene and PPy. Meanwhile,the G@SnO2@PPy composite as anode material for lithiumion battery delivers outstanding electrochemical performance with good rate performance and excellent cycling stability.