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首页> 外文期刊>Electrocatalysis >Rapidly Microwave-Synthesized SnO2 Nanorods Anchored on Onion-Like Carbons (OLCs) as Anode Material for Lithium-Ion Batteries
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Rapidly Microwave-Synthesized SnO2 Nanorods Anchored on Onion-Like Carbons (OLCs) as Anode Material for Lithium-Ion Batteries

机译：快速微波合成的SnO2纳米棒锚定，洋葱状碳（OLC）作为锂离子电池的阳极材料

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摘要

Nanostructured SnO2/onion-like carbon (OLC) composites were fabricated via a facile and rapid microwave-assisted synthesis technique. The influence of SnO2 nanorods anchored on OLC was investigated as an anode material for the first time in lithium-ion battery applications. The OLC successfully served as a barrier layer between SnO2 nanorods and electrolyte to avoid the rupturing of the unstable SEI layer in order to provide improved coulombic efficiency, ionic resistance, and electronic conductivity. The SnO2 nanorod-OLC nanocomposite exhibits much stable and better electrochemical performance than pure SnO2 nanorods. The SnO2-OLC composite exhibited a remarkably high specific capacity of 884mAhg(-1) after 100cycles with long-term cycling stability and excellent capacity retention of 93.5% (at current density of 100mAg(-1)) with only 0.23% fading per cycle. The outstanding performance is attributed to the high surface area of OLC which can enhance electron transportation and high lithium-ion diffusion during cycling.
机译：通过容易和快速的微波辅助合成技术制造纳米结构的SnO 2 /洋葱状碳（OLC）复合材料。在锂离子电池应用中首次研究了锚定在OLC上的SnO2纳米棒作为阳极材料的影响。 OLC成功用作SnO2纳米棒和电解质之间的阻挡层，以避免不稳定的SEI层的破裂，以便提供改善的库仑效率，离子电阻和电子导电性。 SnO2 Nanorod-OLC纳米复合材料表现出比纯SnO2纳米棒的稳定且更好的电化学性能。 SnO2-OLC复合材料在100次循环稳定性和93.5％的优异容量保留（以100mag（-1）的电流密度为0.23％时。出色的性能归因于OLC的高表面积，可以在循环期间增强电子传输和高锂离子扩散。

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