Published in

Wiley, Angewandte Chemie International Edition, 48(54), p. 14331-14335, 2015

DOI: 10.1002/anie.201506357

Wiley, Angewandte Chemie, 48(127), p. 14539-14543, 2015

DOI: 10.1002/ange.201506357

Links

Tools

Export citation

Search in Google Scholar

TiO 2 Microboxes with Controlled Internal Porosity for High-Performance Lithium Storage

Journal article published in 2015 by Xuehui Gao, Gaoran Li, Yangyang Xu, Zhanglian Hong, Chengdu Liang, Zhan Lin
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

Titanium dioxide (TiO2) is considered a promising anode material for high-power lithium ion batteries (LIBs) because of its low cost, high thermal/chemical stability, and good safety performance without solid electrolyte interface formation. However, the poor electronic conductivity and low lithium ion diffusivity of TiO2 result in poor cyclability and lithium ion depletion at high current rates, which hinder them from practical applications. Herein we demonstrate that hierarchically structured TiO2 microboxes with controlled internal porosity can address the aforementioned problems for high-power, long-life LIB anodes. A self-templating method for the synthesis of mesoporous microboxes was developed through Na2EDTA-assisted ion exchange of CaTiO3 microcubes. The resulting TiO2 nanorods were organized into microboxes that resemble the microcube precursors. This nanostructured TiO2 material has superior lithium storage properties with a capacity of 187 mAh g−1 after 300 cycles at 1 C and good rate capabilities up to 20 C.