Issue 48, 2013

Distinct effect of hierarchical structure on performance of anatase as an anode material for lithium-ion batteries

Abstract

Hierarchically structured titania materials composed of anatase nanoparticles have been prepared via a template-free light-driven fabrication route by employing titanium glycolate (TG) as a precursor. These materials are characterized by electron microscopy, X-ray powder diffraction, and nitrogen adsorption–desorption measurements. The lithium storage properties of the materials are evaluated by galvanostatic charge–discharge, cyclic voltammetry, and electrochemical impedance techniques. At a current density of 0.1 A g−1, the initial lithium insertion/extraction capacities of the hierarchically structured titania reach 262 and 221 mA h g−1, respectively. A discharge capacity of approximately 149 mA h g−1 is retained after being cycled at 1.0 A g−1 for 100 cycles, demonstrating the superior rate performance and high cycleability of the materials. The structural hierarchy featured by the well-defined morphology, high specific surface area, narrow pore size distribution, and high crystallinity has a significant influence on the electrochemical properties of the titania materials. The introduction of a hierarchical structure is envisaged as an efficient approach for the development of novel electrode materials for high performance lithium-ion batteries.

Graphical abstract: Distinct effect of hierarchical structure on performance of anatase as an anode material for lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
29 Aug 2013
Accepted
23 Oct 2013
First published
24 Oct 2013

RSC Adv., 2013,3, 26052-26058

Distinct effect of hierarchical structure on performance of anatase as an anode material for lithium-ion batteries

Y. Jiang, K. Wang, H. Zhang, X. Guo, J. Wang, G. Li and J. Chen, RSC Adv., 2013, 3, 26052 DOI: 10.1039/C3RA44731F

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