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Issue 19, 2017
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Hybrid vertical graphene/lithium titanate–CNTs arrays for lithium ion storage with extraordinary performance

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Abstract

In the present study, we report a synthetic strategy for the direct fabrication of hybrid vertical graphene/lithium titanate–CNTs arrays via atomic layer deposition in combination with chemical vapor deposition. A novel array architecture was formed where active lithium titanate (Li4Ti5O12, LTO) was uniformly sandwiched by a vertical graphene backbone and an interconnected CNTs shell. The hybrid omnibearing conductive network was identified to be an extremely stable porous structure and demonstrated superior ultra-high rate capability (146 mA h g−1 at 50C and 131 mA h g−1 at 100C) with a capacity of 136 mA h g−1 at 20C after 10 000 cycles when used as an electrode in lithium ion batteries. This special electrode construction strategy is expected to provide a new route for the manufacture of electrochemical energy storage with ultra-high rate capability and ultra-stability.

Graphical abstract: Hybrid vertical graphene/lithium titanate–CNTs arrays for lithium ion storage with extraordinary performance

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Publication details

The article was received on 22 Mar 2017, accepted on 13 Apr 2017 and first published on 13 Apr 2017


Article type: Communication
DOI: 10.1039/C7TA02511D
Citation: J. Mater. Chem. A, 2017,5, 8916-8921
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    Hybrid vertical graphene/lithium titanate–CNTs arrays for lithium ion storage with extraordinary performance

    Z. Yao, X. Xia, Y. Zhong, Y. Wang, B. Zhang, D. Xie, X. Wang, J. Tu and Y. Huang, J. Mater. Chem. A, 2017, 5, 8916
    DOI: 10.1039/C7TA02511D

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