Graphene, inorganic graphene analogs and their composites for lithium ion batteries
Graphene, inorganic graphene analogs and their composites for lithium ion batteries
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用于锂离子电池的石墨烯、无机石墨烯类似物及其复合材料
DOI：
10.1039/c4ta01033g
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发表时间：
2014-01-01
影响因子：
11.9
通讯作者：
Chen, Zhongfang
中科院分区：
文献类型：
--
作者：
Jing, Yu;Zhou, Zhen;Chen, Zhongfang
近年来，二维（2D）材料，包括石墨烯和无机石墨烯类似物（IGA），由于其新颖的化学和物理性质而成为深入研究的主题。二维材料具有明显的高表面积体积比，是锂离子电池（LIB）有前途的电极候选者。与三维块体晶体相比，2D材料具有上级结构特性，因此可以表现出更高的比容量和更好的高倍率稳定性。特别是，由石墨烯和IGA组成的复合材料可以由于特定的协同效应而具有增强的电化学性能，这开辟了基础科学和技术的新前沿。虽然使用IGA进行锂存储的探索最近已经开始，但对于开发改进的电极候选物来说，在该领域的及时概述是必要的。在这篇专题文章中，我们总结了实验和理论界在开发石墨烯和IGA作为LIB电极方面正在进行的努力和研究。与石墨烯相比，我们更强调IGA，如过渡金属氧化物，二硫属化物和MXene，并说明IGA作为电极的显着优势。我们还表明，由于石墨烯和IGA之间的有效协同相互作用，它们的复合材料进一步实现可逆的高容量LIB。最后，我们讨论了二维材料的LIB的实际应用的问题和局限性。
In recent years, two-dimensional (2D) materials, including graphene and inorganic graphene analogs (IGAs), have been the subject of intensive studies due to their novel chemical and physical properties. With apparent high surface-to-volume ratio, 2D materials are promising electrode candidates for lithium ion batteries (LIBs). Compared with three-dimensional bulk crystals, 2D materials have superior structural characteristics, and thus can exhibit higher specific capacity and better high-rate stability. In particular, composites consisting of graphene and IGAs could have enhanced electrochemical performances due to the specific synergic effects, which open up new frontiers in fundamental science and technology. Although the explorations of using IGAs for lithium storage have begun very recently, a timely overview in this field is necessary for developing improved electrode candidates. In this feature article, we summarize the ongoing efforts and studies from both experimental and theoretical communities on developing graphene and IGAs as LIB electrodes. Compared with graphene, we put more emphasis on IGAs, such as transition metal oxides, dichalcogenides, and MXenes, and illustrate the significant advantages of IGAs as electrodes. We also show that due to the effective synergic interactions between graphene and IGAs, their composites step further to achieve reversible high-capacity LIBs. Finally, we discuss the problems and limitations for the practical application of 2D materials to LIBs.