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Title: Influence of the ZnO nanoarchitecture on the electrochemical performances of binder-free anodes for Li storage

Abstract

Zinc oxide nanoarchitectures may be employed as binder-free, high specific capacity anodes for lithium batteries. By means of simple and low-impact wet chemistry approaches, we synthesized 1D (nanorods), 2D (single- and multi-layered nanosheets), and 3D (nanobrushes) ZnO arrays. These nanoarchitectures were compared as far as concerns their electrochemical properties and the structural modifications upon lithiation/delithiation. The best results were offered by 2D nanosheets, which showed reversible capacity of the order of 400 mAhg{sup −1} after 100 cycles at 1 Ag{sup −1}. This was due to: i) small nanoparticles, with average diameter of about 10 nm, which maximize the array specific surface area and favor the formation of the LiZn alloy; ii) the presence of a mesoporous texture, which allows larger space for accommodating the volume changes upon lithiation/delithiation. However, also these 2D structures showed large irreversible capacity losses. Our work highlights the need for more efficient buffering solutions in ZnO binder-free nanostructured anodes. - Graphical abstract: ZnO nanosheets as anode materials for lithium batteries.

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22658217
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 247; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ANODES; CAPACITORS; CAPACITY; ELECTROCHEMISTRY; LITHIUM; NANOCOMPOSITES; NANOSTRUCTURES; PERFORMANCE; SHEETS; SPECIFIC SURFACE AREA; ZINC OXIDES

Citation Formats

Dall'Asta, V., Tealdi, C., Resmini, A., Anselmi Tamburini, U., Mustarelli, P., E-mail: piercarlo.mustarelli@unipv.it, and Quartarone, E. Influence of the ZnO nanoarchitecture on the electrochemical performances of binder-free anodes for Li storage. United States: N. p., 2017. Web. doi:10.1016/J.JSSC.2016.12.016.
Dall'Asta, V., Tealdi, C., Resmini, A., Anselmi Tamburini, U., Mustarelli, P., E-mail: piercarlo.mustarelli@unipv.it, & Quartarone, E. Influence of the ZnO nanoarchitecture on the electrochemical performances of binder-free anodes for Li storage. United States. doi:10.1016/J.JSSC.2016.12.016.
Dall'Asta, V., Tealdi, C., Resmini, A., Anselmi Tamburini, U., Mustarelli, P., E-mail: piercarlo.mustarelli@unipv.it, and Quartarone, E. Wed . "Influence of the ZnO nanoarchitecture on the electrochemical performances of binder-free anodes for Li storage". United States. doi:10.1016/J.JSSC.2016.12.016.
@article{osti_22658217,
title = {Influence of the ZnO nanoarchitecture on the electrochemical performances of binder-free anodes for Li storage},
author = {Dall'Asta, V. and Tealdi, C. and Resmini, A. and Anselmi Tamburini, U. and Mustarelli, P., E-mail: piercarlo.mustarelli@unipv.it and Quartarone, E.},
abstractNote = {Zinc oxide nanoarchitectures may be employed as binder-free, high specific capacity anodes for lithium batteries. By means of simple and low-impact wet chemistry approaches, we synthesized 1D (nanorods), 2D (single- and multi-layered nanosheets), and 3D (nanobrushes) ZnO arrays. These nanoarchitectures were compared as far as concerns their electrochemical properties and the structural modifications upon lithiation/delithiation. The best results were offered by 2D nanosheets, which showed reversible capacity of the order of 400 mAhg{sup −1} after 100 cycles at 1 Ag{sup −1}. This was due to: i) small nanoparticles, with average diameter of about 10 nm, which maximize the array specific surface area and favor the formation of the LiZn alloy; ii) the presence of a mesoporous texture, which allows larger space for accommodating the volume changes upon lithiation/delithiation. However, also these 2D structures showed large irreversible capacity losses. Our work highlights the need for more efficient buffering solutions in ZnO binder-free nanostructured anodes. - Graphical abstract: ZnO nanosheets as anode materials for lithium batteries.},
doi = {10.1016/J.JSSC.2016.12.016},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 247,
place = {United States},
year = {Wed Mar 15 00:00:00 EDT 2017},
month = {Wed Mar 15 00:00:00 EDT 2017}
}