Issue 1, 2014

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

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

Supplementary files

Article information

Article type
Paper
Submitted
26 sept. 2013
Accepted
10 nov. 2013
First published
16 déc. 2013

Inorg. Chem. Front., 2014,1, 58-64

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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