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Issue 10, 2014
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Rational design of MoS2@graphene nanocables: towards high performance electrode materials for lithium ion batteries

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Abstract

Here, we have successfully developed a novel contact mode between MoS2 and graphene, where graphene rolls up into a hollow nanotube and thin MoS2 nanosheets are uniformly standing on the inner surface of graphitic nanotubes, thus forming mechanically robust, free-standing, interwoven MoS2@graphene nanocable webs (MoS2@G). Such a hybrid structure can maximize the MoS2 loading in the electrode in which over 90% of MoS2 nanosheets with stacked layer number of less than 5 can be installed. Remarkably, when calculated on the basis of the whole electrode, this binder free electrode not only shows high specific capacity (ca. 1150 mA h g−1) and excellent cycling performance (almost 100% capacity retention even after 160 cycles at a current density of 0.5 A g−1) but exhibits a surprisingly high-rate capability of 700 mA h g−1 at the rate of 10 A g−1 despite such a high MoS2 loading content, which is one of the best results of MoS2-based electrode materials ever reported thus far.

Graphical abstract: Rational design of MoS2@graphene nanocables: towards high performance electrode materials for lithium ion batteries

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Supplementary files

Article information


Submitted
15 Jul 2014
Accepted
07 Aug 2014
First published
07 Aug 2014

Energy Environ. Sci., 2014,7, 3320-3325
Article type
Communication
Author version available

Rational design of MoS2@graphene nanocables: towards high performance electrode materials for lithium ion batteries

D. Kong, H. He, Q. Song, B. Wang, W. Lv, Q. Yang and L. Zhi, Energy Environ. Sci., 2014, 7, 3320
DOI: 10.1039/C4EE02211D

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