Journal
JOURNAL OF POWER SOURCES
Volume 295, Issue -, Pages 235-245Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2015.06.135
Keywords
Zinc oxide; MWCNT buckypaper nanocomposite; Free-standing anode; Sol-gel; Spin coating; Li-ion batteries
Funding
- Scientific and Technological Research Council of Turkey (TUBITAK) [109M464]
- TUBITAK
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Free standing zinc oxide (ZnO) and multiwalled carbon nanotube (MWCNT) nanocomposite materials are prepared by a sol gel technique giving a new high capacity anode material for lithium ion batteries. Freestanding ZnO/MWCNT nanocomposite anodes with two different chelating agent additives, triethanolamine (TEA) and glycerin (GLY), yield different electrochemical performances. Field emission gun scanning electron microscopy (FEG-SEM), energy dispersive X-ray spectrometer (EDS), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) analyses reveal the produced anode electrodes exhibit a unique structure of ZnO coating on the MWCNT surfaces. Li-ion cell assembly using a ZnO/MWCNT/GLY free-standing anode and Li metal cathode possesses the best discharge capacity, remaining as high as 460 mAh g(-1) after 100 cycles. This core-shell structured anode can offer increased energy storage and performance over conventional anodes in Li-ion batteries. (C) 2015 Elsevier B.V. All rights reserved.
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