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首页> 外文期刊>International Journal of Electrochemical Science >Layer-by-layer Assembled Sandwich-Like Carbon Nanotubes/Graphene Oxide Composite as High-Performance Electrodes for Lithium-Ion Batteries
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Layer-by-layer Assembled Sandwich-Like Carbon Nanotubes/Graphene Oxide Composite as High-Performance Electrodes for Lithium-Ion Batteries

机译：层状组装式三明治式碳纳米管/氧化石墨烯复合材料作为锂离子电池的高性能电极

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Carbon nanotubes/graphene oxide (CNT/GO) composite with a sandwich-like structure was fabricatedby a layer-by-layer (LBL) assembled method. Transmission electron microscopy (TEM) and fieldemission scanning electron microscopy (FESEM) revealed that the open-ended carbon nanotubesconstructed network architecture with well-developed nanopores between the graphene oxide sheets,and formed a laminated sandwich-like film. As an anode material for lithium ion batteries, the-1 -1 composite delivered an initial reversible capacity of 1093 mAh g at a current density of 100 mA g-1 and remained a reversible capacity of 850 mAh g at the 60th cycle. In addition, the compositeexhibited high rate capability. Such enhanced lithium storage performance of the composite could be+ ascribed to the special sandwich-like structure which could provide more sites for Li storage andfacilitate lithium ion movement.
机译：采用层-层（LBL）组装法制备了具有三明治结构的碳纳米管/氧化石墨烯（CNT / GO）复合材料。透射电子显微镜（TEM）和场发射扫描电子显微镜（FESEM）表明，开放式碳纳米管构建了网络结构，在氧化石墨烯片之间形成了发达的纳米孔，并形成了层状夹心膜。作为锂离子电池的负极材料，-1 -1复合材料在100 mA g-1的电流密度下提供了1093 mAh g的初始可逆容量，并在第60个循环时保持了850 mAh g的可逆容量。另外，该复合材料表现出高速率能力。复合材料的这种提高的锂存储性能可以归因于特殊的三明治状结构，该结构可以提供更多的锂存储位置并促进锂离子的移动。

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