Journal
ELECTROCHIMICA ACTA
Volume 180, Issue -, Pages 658-665Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.08.141
Keywords
TiO2; mesopore; nanocrystal; anode; lithium-ion battery
Categories
Funding
- National Natural Science Foundation of China [51272294]
- National Basic Research Program of China [2012CB933704]
- Program for Chang jiang Scholars Innovative Research Team in University [IRT13042]
- Fund for Fostering Talents in State Key Laboratory of Optoelectronic Materials and Technologies, China [OEMT-2015-RC-06]
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Herein, we report a simple base-free hydrothermal route for the synthesis of mesoporous TiO2 fibers by using chitosan as direct agent. This hierarchical structure combines advantages of mesopores constructed by interconnected sub-10nm nanocrystals on nanoscale and 1D structure with large aspect ratio on micron-scale, which is desired structural characteristic needed for the high-performance anode materials. Benefiting from such unique structural features, it demonstrates superior high charge/discharge capability, good cycling stability and rate capability when used as lithium-ion batteries electrode. For example, it can deliver a capacity of 174 mA h g(-1) at 0.5C and 137 mA h g(-1) at 5C after 100 cycles. (C) 2015 Elsevier Ltd. All rights reserved.
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