An interlayer nanostructure of rGO/Sn₂Fe-NRs array/rGO with high capacity for lithium ion battery anodes

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• 作者：Chenxiang Wang 王辰祥 ; Jie Wang 王杰 ; Hanxing Chen 陈翰星 ; Ming Wen 温鸣…
• 关键词：interlayer nanostructures ; rGO/Sn2Fe ; NRs array/rGO ; anodes ; capacity ; high density
• 刊名：Science China Materials
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：59
• 期：11
• 页码：927-937
• 全文大小：4531KB
• 刊物类别：Materials Science, general; Chemistry/Food Science, general;
• 刊物主题：Materials Science, general; Chemistry/Food Science, general;
• 出版者：Science China Press
• ISSN：2199-4501
• 卷排序：59

文摘

An interlayer nanostructure of rGO/Sn₂Fe-NRs array/rGO was synthesized via a versatile integration of Sn₂Fe nanorods (NRs) array in between reduced graphene oxide (rGO) nanosheets. Impressively, as an anode material for lithium ion batteries, the as-prepared nanocomposites deliver a high specific capacity of 690 mA h g−1 at a current density of 0.5 C (500 mA g−1), and 582 mA h g−1at 1 C (1000 mA g−1) with exceptional rate capability and cycling stability over 600 cycles. These significantly improved electrochemical properties benefit from the high structural stability and electrical conductivity of rGO/Sn₂Fe-NRs array/rGO interlayer nanostructures. It is demonstrated that the designed interlayer nanostructures are outstanding architectures for lithium ion battery anodes.