Journal
NANO ENERGY
Volume 10, Issue -, Pages 163-171Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2014.09.003
Keywords
Li4Ti5O12; Nanofibers; Porous; Lithium-ion battery; Hybrid-supercapacitor
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Funding
- National Natural Science Foundation of China [21271078, 51472098, 51002057]
- NCET (Program for New Century Excellent Talents in University) [NECT-12-0223]
- PCSIRT (Program for Changjiang Scholars and Innovative Research Team in University) [IRT1014]
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The storage of electrical energy at high charge and discharge rates is an important technology in modern society, and can enable electric vehicles, supply back-up for solar and wind energy, and firm the output of a renewables-based grid. In this work, highly porous Li4Ti5O12/C nanofibers are successfully designed and prepared through electrospinning combined with a post-two-step annealing process. Such a unique Li4Ti5O12/C hybrid with a well-defined porous nanoarchitecture exhibits ultrahigh cycling rates and superior cycling stability, when evaluated as an anode material for both lithium ion batteries and supercapacitors. This work presents a facile and cost-effective approach that is potentially competitive for scaling-up production of high-performance electrode materials for high-rate electrochemical energy-storage devices. (C) 2014 Elsevier Ltd. All rights reserved.
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