Research Progress of Silicon/Carbon Anode Materials for Lithium‐Ion Batteries: Structure Design and Synthesis Method,ChemElectroChem

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Research Progress of Silicon/Carbon Anode Materials for Lithium‐Ion Batteries: Structure Design and Synthesis Method
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-09-14 , DOI: 10.1002/celc.202001060
Xinzhi Li ₁ , Meng Zhang ₁ , Shuxia Yuan ₂ , Chunxiang Lu ₁

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Silicon has been considered as one of the best alternatives to replace widely used graphite anodes for lithium‐ion batteries, owing to its high theoretical capacity, proper working voltage, abundant availability, and environmental friendliness. Nevertheless, there are many obstacles that hamper the practical applications of silicon anode materials such as huge volume change, low electrical and ionic conductivity, and unstable solid electrolyte interface (SEI), which lead to the pulverization of silicon and severe attenuation of capacity. Among numerous solutions, compounding with carbon is a promising and effective one that attracts more and more attention. In silicon/carbon (Si/C) hybrid anodes, Si acts as the active material that provides high capacity and carbon improves the conductivity as well as alleviates the expansion of Si. In this review, research progresses and developments of Si/C anode materials are summarized mainly from the point of structure design and synthesis methods. Issues and possible solutions are also discussed.

中文翻译：

锂离子电池硅碳负极材料的研究进展：结构设计与合成方法

硅由于其高理论容量，适当的工作电压，丰富的可用性和环境友好性，已被认为是替代广泛用于锂离子电池的石墨阳极的最佳替代品之一。尽管如此，仍然存在许多阻碍硅阳极材料实际应用的障碍，例如巨大的体积变化，低的电导率和离子电导率以及不稳定的固体电解质界面（SEI），这些都会导致硅的粉碎和容量的严重降低。在众多解决方案中，与碳混合是一种有前途且有效的解决方案，吸引了越来越多的关注。在硅/碳（Si / C）混合阳极中，Si充当提供高容量的活性材料，碳改善了电导率并减轻了Si的膨胀。在这篇评论中主要从结构设计和合成方法两方面总结了Si / C阳极材料的研究进展和发展。还讨论了问题和可能的解决方案。

更新日期：2020-11-02

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