Anatase TiO2 nanosheet : an ideal host structure for fast and efficient lithium insertion/extraction
Chen, Jun Song
Lou, David Xiong Wen
Date of Issue2009
School of Chemical and Biomedical Engineering
Anatase TiO2 nanosheets with largely exposed (0 0 1) facets have been synthesized by a modified method. Exploitation of these nanosheets as a host structure for reversible lithium insertion/extraction has been investigated. It is found that these TiO2 nanosheets manifest much lower initial irreversible losses compared to other anatase TiO2 nanostructures, and excellent cycling performance at a charge–discharge rate as high as 20 C. The superior reversible lithium storage capability can be attributed to the ultrathin nanosheet structure: a large exposed effective area and a very short diffusion path. It thus attests the promising use of these anatase TiO2 nanosheets in high-power lithium–ion batteries.
© 2009 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Electrochemistry Communications, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.elecom.2009.10.024].