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Issue 1, 2014
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Sandwich-like carbon-anchored ultrathin TiO2 nanosheets realizing ultrafast lithium storage

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Abstract

Lithium-ion batteries have long been considered as the most promising energy storage technology for hybrid, plug-in hybrid and electric vehicle applications. However, their large-scale applications are still limited by the low electrical conductivity, easy agglomeration and inferior cycling stability of the active materials. Herein, sandwich-like carbon-anchored ultrathin nanosheets are put forward for the first time as an excellent platform to achieve ultrafast lithium storage kinetics and superior cycling stability. Taking the synthetic sandwich-like carbon-anchored ultrathin TiO2 nanosheets as an example, a capacity of 101.9 mA h g−1 is achieved at a current density as high as 40 C (6.8 A g−1), while a capacity of 150.4 mA h g−1 is obtained even after 1200 cycles at a discharge rate of 5 C. This work develops an in situ carbonization of organic octylamine for fabricating sandwich-like carbon-anchored ultrathin nanosheets, holding great promise for the future design and synthesis of high-performance active materials for lithium-ion batteries.

Graphical abstract: Sandwich-like carbon-anchored ultrathin TiO2 nanosheets realizing ultrafast lithium storage

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Article information


Submitted
26 Sep 2013
Accepted
10 Nov 2013
First published
16 Dec 2013

Inorg. Chem. Front., 2014,1, 58-64
Article type
Paper

Sandwich-like carbon-anchored ultrathin TiO2 nanosheets realizing ultrafast lithium storage

Y. Sun, J. Zhu, L. Bai, Q. Li, X. Zhang, W. Tong and Y. Xie, Inorg. Chem. Front., 2014, 1, 58
DOI: 10.1039/C3QI00050H

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