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首页> 外文期刊>RSC Advances >Flower-like carbon with embedded silicon nano particles as an anode material for Li-ion batteries
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Flower-like carbon with embedded silicon nano particles as an anode material for Li-ion batteries

机译：嵌有硅纳米粒子的花状碳作为锂离子电池的负极材料

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A novel 3-dimensional (3D) flower-like silicon/carbon composite was synthesized through spray drying method by using NaCl as the sacrificial reagent and was evaluated as an anode material for lithium ion batteries. This composite is composed of silicon nanoparticles distributed in the flower-like carbon framework. Cycling test results showed that, serving as the anode material, the composite achieved excellent capacity values of 1323 mA h g?1 at C/20 (1C = 4200 mA g?1) after 100 cycles and 985 mA h g?1 at C/2 after 200 cycles, respectively. The enhancement of electrode stability, compared to the conventional silicon anode made of bare silicon nano particles, is attributed to the unique flower-like 3D structure of the composite, which helps to maintain the mechanical stability of the electrode, and therefore maintains better electrical contact between the anode material and the current collector.
机译：以NaCl为牺牲剂，通过喷雾干燥法合成了新颖的三维（3D）花状硅碳复合材料，并被评价为锂离子电池的负极材料。该复合材料由分布在花状碳骨架中的硅纳米颗粒组成。循环测试结果表明，作为负极材料，该复合材料在C / 20（1C = 4200 mA g ？1 容量值。 > ？1 ）在100个循环后和985 mA hg ？1 在200个循环后分别处于C / 2。与由裸露的硅纳米粒子制成的常规硅阳极相比，电极稳定性得到了增强，这归因于复合材料独特的花状3D结构，有助于维持电极的机械稳定性，从而保持更好的电接触在阳极材料和集电器之间。

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