Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/108169
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Type: Journal article
Title: Aqueous synthesis of LiFePO₄ with Fractal Granularity
Other Titles: Aqueous synthesis of LiFePO(4) with Fractal Granularity
Author: Cabán-Huertas, Z.
Ayyad, O.
Dubal, D.
Gómez-Romero, P.
Citation: Scientific Reports, 2016; 6(1):27024-1-27024-9
Publisher: Nature Publishing Group
Issue Date: 2016
ISSN: 2045-2322
2045-2322
Statement of
Responsibility: 
Zahilia Cabán-Huertas, Omar Ayyad, Deepak P. Dubal and Pedro Gómez-Romero
Abstract: Lithium iron phosphate (LiFePO4) electrodes with fractal granularity are reported. They were made from a starting material prepared in water by a low cost, easy and environmentally friendly hydrothermal method, thus avoiding the use of organic solvents. Our method leads to pure olivine phase, free of the impurities commonly found after other water-based syntheses. The fractal structures consisted of nanoparticles grown into larger micro-sized formations which in turn agglomerate leading to high tap density electrodes, which is beneficial for energy density. These intricate structures could be easily and effectively coated with a thin and uniform carbon layer for increased conductivity, as it is well established for simpler microstructures. Materials and electrodes were studied by means of XRD, SEM, TEM, SAED, XPS, Raman and TGA. Last but not least, lithium transport through fractal LiFePO4 electrodes was investigated based upon fractal theory. These water-made fractal electrodes lead to high-performance lithium cells (even at high rates) tested by CV and galvanostatic charge-discharge, their performance is comparable to state of the art (but less environmentally friendly) electrodes.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ Article Tools
DOI: 10.1038/srep27024
Appears in Collections:Aurora harvest 8
Chemical Engineering publications

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