一种硅碳复合负极材料及其制备方法和应用
本发明提供一种硅碳复合负极材料及其制备方法和应用。所述硅碳复合负极材料包括表面负载碳纳米管的硅纳米线内核以及由内到外依次包覆在所述表面负载碳纳米管的硅纳米线内核表面的第一包覆层和第二包覆层;所述第一包覆层为多孔支撑层。本发明提供的硅碳复合负极材料不仅增强了硅纳米线、硅纳米线与包覆层之间的导电性,同时也能够有效缓解硅的体积膨胀现象,并且形成的第一包覆层有利于加快锂离子传导,以及维持整体核壳结构保持稳定。
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