Large reversible Li storage of graphene nanosheet families for use in rechargeable lithium ion batteries

被引：2682

作者：

Yoo, EunJoo ^{[1
]}

Kim, Jedeok ^{[2
]}

Hosono, Eiji ^{[1
]}

Zhou, Hao-shen

Kudo, Tetsuichi

Honma, Itaru ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] Natl Inst Mat Sci, Nanoion Mat Grp, Tsukuba, Ibaraki 3050044, Japan

来源：

NANO LETTERS | 2008年 / 8卷 / 08期

关键词：

D O I：

10.1021/nl800957b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The lithium storage properties of graphene nanosheet (GNS) materials as high capacity anode materials for rechargeable lithium secondary batteries (LIB) were investigated. Graphite is a practical anode material used for LIB, because of its capability for reversible lithium ion intercalation in the layered crystals, and the structural similarities of GNS to graphite may provide another type of intercalation anode compound. While the accommodation of lithium in these layered compounds is influenced by the layer spacing between the graphene nanosheets, control of the intergraphene sheet distance through interacting molecules such as carbon nanotubes (CNT) or fullerenes (C-60) might be crucial for enhancement of the storage capacity. The specific capacity of GNS was found to be 540 mAh/g, which is much larger than that of graphite, and this was increased up to 730 mAh/g and 784 mAh/g, respectively, by the incorporation of macromolecules of CNT and C-60 to the GNS.

引用

页码：2277 / 2282

页数：6

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