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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Electrochemical synthesis of SnCo alloy shells on orderly rod-shaped Cu current collectors as anode materials for lithium-ion batteries with enhanced performance
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Electrochemical synthesis of SnCo alloy shells on orderly rod-shaped Cu current collectors as anode materials for lithium-ion batteries with enhanced performance

机译：性能增强的锂离子电池负极材料在有序棒状Cu集电器上电化学合成SnCo合金壳

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摘要

In this article, we report a two-step electrodeposition method for the synthesis of Cu/SnCo core-shell rod-shaped arrays as anodes of lithium-ion batteries. Firstly, the arrayed Cu nanorods with diameters of 200 nm were fabricated on a Cu foil through an electrodeposition method with alumina oxide mem brane (AAO) as the template. Secondly, the SnCo alloy shells were subsequently electrodeposited on the surface of the rod-shaped Cu arrays to form the hybrid nanostructures. These hybrid electrodes delivered the enhanced cyclic performance and high rate capability serving as the anode materials for lithium-ion batteries. The improved electrochemical performance might be attributed to the large surface-to-volume area, sufficient buffering space, and high electronic conductivity associated with these 3-dimensional (3D) nanostructures.
机译：在本文中，我们报告了一种两步电沉积方法，用于合成作为锂离子电池阳极的Cu / SnCo核壳棒状阵列。首先，以氧化铝膜（AAO）为模板，通过电沉积法在铜箔上制备了直径为200nm的铜纳米棒。其次，随后将SnCo合金壳电沉积在棒状Cu阵列的表面上以形成杂化纳米结构。这些混合电极具有增强的循环性能和高倍率性能，可作为锂离子电池的负极材料。改善的电化学性能可能归因于与这些3维（3D）纳米结构相关的较大的表面积（体积），足够的缓冲空间以及较高的电导率。

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