Web of Science: 24 citations, Scopus: 27 citations, Google Scholar: citations
Aqueous synthesis of LiFePO4 with Fractal Granularity
Cabán Huertas, Zahilia (Institut Català de Nanociència i Nanotecnologia)
Ayyad, Omar (Institut Català de Nanociència i Nanotecnologia)
Dubal, Deepak P. (Institut Català de Nanociència i Nanotecnologia)
Gómez Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)

Date: 2016
Abstract: Lithium iron phosphate (LiFePO) 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 LiFePO 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.
Note: Altres ajuts: Beatriu de Pinos Program (BP-DGR-2013)
Note: Número d'acord de subvenció EC/FP7/266090
Note: Número d'acord de subvenció MINECO/SEV-2013-0295
Note: Número d'acord de subvenció AGAUR/2014/SGR-1505
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: article ; recerca ; publishedVersion
Subject: Batteries
Published in: Scientific reports, Vol. 6 (June 2016) , art. 27024, ISSN 2045-2322

DOI: 10.1038/srep27024
PMID: 27256504

9 p, 1.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2019-06-03, last modified 2020-08-08

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