天然石墨(NG)分别掺入碳纳米管(CNT)和纳米炭粉(CNP),得到两种纳米炭与石墨碳的混合材料.通过比较NG、CNT、CNP及其混合材料分别作为锂离子电池负极时的电化学性能,发现碳纳米管的首次不可逆容量损失很大,它的混合材料也不适合作锂离子电池的负极材料; 纳米炭粉与石墨有很好的协同效应,该混合材料具有良好的电化学性能,相同条件下与天然石墨相比,其充放电比容量分别提高9.8%和9.4%.
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