Graphene-based nanocomposite anodes for lithium-ion batteries.
Graphene-based nanocomposite anodes for lithium-ion batteries.
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DOI：
10.1039/c4nr02999b
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发表时间：
2014-09
期刊：
影响因子：
6.7
通讯作者：
Weiwei Sun;Yong Wang
中科院分区：
文献类型：
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作者：
Weiwei Sun;Yong Wang
石墨烯基纳米复合材料已被证明是有前途的高容量锂离子电池负极，以满足不断增长的需求，更高的容量，更长的循环寿命和更好的高倍率性能。通常观察到石墨烯和引入的第二相组分之间的协同效应。在这篇专题评论文章中，我们将重点介绍我们和其他人最近在四种不同类别的石墨烯基纳米复合材料阳极上的工作：石墨烯-过渡金属氧化物，石墨烯-Sn/Si/Ge，石墨烯-金属硫化物和石墨烯-碳纳米管。对于石墨烯上的负载材料，我们将强调非零维（非颗粒）形态，如二维纳米片/纳米板和一维纳米棒/纳米纤维/纳米管形态。这些突出显示的电极形态的合成策略和锂离子存储特性与通常获得的零维纳米颗粒的合成策略和锂离子存储特性不同。我们的目的是强调结构匹配的重要性，在复合材料和它们的形态依赖的锂存储性能和机制。
Graphene-based nanocomposites have been demonstrated to be promising high-capacity anodes for lithium ion batteries to satisfy the ever-growing demands for higher capacity, longer cycle life and better high-rate performance. Synergetic effects between graphene and the introduced second-phase component are generally observed. In this feature review article, we will focus on the recent work on four different categories of graphene-based nanocomposite anodes by us and others: graphene-transitional metal oxide, graphene-Sn/Si/Ge, graphene-metal sulfide, and graphene-carbon nanotubes. For the supported materials on graphene, we will emphasize the non-zero dimensional (non-particle) morphologies such as two dimensional nanosheet/nanoplate and one dimensional nanorod/nanofibre/nanotube morphologies. The synthesis strategies and lithium-ion storage properties of these highlighted electrode morphologies are distinct from those of the commonly obtained zero dimensional nanoparticles. We aim to stress the importance of structure matching in the composites and their morphology-dependent lithium-storage properties and mechanisms.