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In Situ Synthesis of Silicon–Carbon Composites and Application as Lithium-Ion Battery Anode Materials

机译：硅碳复合材料的原位合成及其在锂离子电池负极材料中的应用

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Silicon can be used in a variety of applications. Particularly, silicon particles are attracting increased attention as energy storage materials for lithium-ion batteries. However, silicon has a limited cycling performance owing to its peeling from the current collector and the volume expansion that occurs during alloying with lithium in the charging process. Significant contributors to this problem are the even distribution of silicon nanoparticles within the carbon matrix and their deep placement in the internal structure. In this study, we synthesized silicon nanoparticles and carbon materials via a bottom-up approach using a new method called plasma in solution. Silicon nanoparticles and the carbon matrix were synthesized in a structure similar to carbon black. It was confirmed that the silicon particles were evenly distributed in the carbon matrix. In addition, the evaluation of the electrochemical performance of the silicon–carbon matrix (Si–C) composite material showed that it exhibited stable cycling performance with high reversible capacity.
机译：硅可用于多种应用。特别地，硅颗粒作为锂离子电池的储能材料正引起越来越多的关注。然而，由于硅从集电器上剥离以及在充电过程中与锂合金化时发生的体积膨胀，因此硅具有有限的循环性能。造成此问题的重要因素是硅纳米颗粒在碳基质中的均匀分布及其在内部结构中的深层位置。在这项研究中，我们使用一种称为等离子体的新方法，通过自下而上的方法合成了硅纳米颗粒和碳材料。以类似于炭黑的结构合成了硅纳米颗粒和碳基质。证实了硅颗粒均匀地分布在碳基质中。此外，对硅碳基质（Si-C）复合材料的电化学性能的评估表明，它表现出稳定的循环性能和高可逆容量。

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